optibelt Technical Manual
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Technical Manual V-Belts
Technical Manual for V-Belt Drives
This manual contains all the important technical information and methods required for calculating drives using Optibelt V-belts and pulleys in industrial applications. The following drive elements from Optibelt‘s comprehensive range are described in detail:
optibelt SK Wedge belts optibelt RED POWER II High performance wedge belts, maintenance free optibelt VB Classical V-belts optibelt SUPER TX M=S V-belts – raw edge, moulded cogged optibelt Super X-POWER M=S High performance wedge belts – raw edge, moulded cogged, low maintenance optibelt KB Kraftbands with wedge belts and classical V-belts optibelt KB RED POWER II Kraftbands with high performance wedge belts, maintenance free optibelt KBX Kraftbands – raw edge, moulded cogged – with high performance wedge belts and classical V-belts optibelt SUPER VX Variable speed belts – raw edge, moulded cogged optibelt SUPER DVX Variable speed belts – raw edge, moulded double cogged optibelt DK Double section V-belts optimat PKR Endless V-belts and Optibelt KB kraftbands with patterned top surface optibelt KK Plastic V-belting optibelt RR Plastic round section belting optibelt KS V-grooved pulleys optibelt RE Variable speed pulleys optibelt TB Taper bushes
Our engineers from the Applications Engineering Dept. will be pleased to provide advice free of charge on the use of these types of drives and to assist in designing to your specific requirements. Especially for heavy duty, high performance drives we can produce optimum solutions using our state of the art CAP drive design programme. 1
Technical Manual V-Belts
Distribution Organisation North and South America / Asia Canada Optibelt (Canada) Inc. 351 Steelcase Road West Unit 8 & 9 Markham L3R 4H9, Ontario/Canada Tel. +1-905-477-8114 Fax +1-905-477-0857 info@optibelt.ca
USA Optibelt Corporation 1120 W. National Avenue Addison, Illinois 60 101/USA Tel. +1-630-628-84 00 Fax +1-630-628-61 75 optibelt@msn.com
Brazil Optibelt do Brasil Ltda. Rua Henrique Monteiro Nr. 90 10 Andar-Pinheiros CEP 05423-020 São Paulo-SP/Brasil optibeltdobrasil@optibelt.com
China Optibelt Power Transmission (Shanghai) Co., Ltd. # 55 Miaosan Road, Songjiang District Shanghai 201612/P.R. China Tel. +86-21- 5768 7465 Fax +86-21- 5768 7462 sales@optibelt.com.cn
Singapore Optibelt Asia Pacific Pte. Ltd. No. 4 Loyang Way 1, # 01- 02/03 Singapore 508708 Tel. +65-6545 4682 Fax +65-6545 4685 sales@optibelt.com.sg
Manufacturing and Distribution Organisation of the Arntz Optibelt Group A & M Belting Company Ltd. Ballyraine Industrial Estate Letterkenny Co. Donegal Ireland Tel. +353-7491- 2 50 66 Fax +353-7491- 2 50 61 a+m@optibelt.com Arntz Belting Company Ltd. Pennyburn Pass Londonderry BT48 0AE Northern Ireland Tel. +44-2871- 26 12 21 Fax +44-2871-26 33 86 abc@optibelt.com
Distribution Organisation Germany Northern Sales Office Corveyer Allee 15 D-37671 Höxter Tel. +49 (0) 52 71 - 6 23 03 Fax +49 (0) 52 71 - 97 62 00 Southern Sales Office Pfauhauser Straße 43 D-73240 Wendlingen Tel. +49 (0) 70 24 - 71 00 Fax +49 (0) 70 24 - 5 27 92 Spain Optibelt España, S.A. Apartado 1141 Rois de Corella, 12 E-08205 Sabadell Tel. +34-93-7 20 79 60 Fax +34-93-7 11 64 90 administracion@optibelt.net
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Technical Manual V-Belts
Finland Optibelt Finland Oy PL 58 Lampputie 4 FIN-00751 Helsinki Puh. +358-9-3 46 14 00 Faksi +358-9-3 46 15 00 optibelt@co.inet.fi
Scandinavia Optibelt Skandinaviska AB Stadiongatan 60 S-21762 Malmö Tel. +46-40-59 21 20 Fax +46-40-49 90 10 optibelt@optibelt.se
United Kingdom Optibelt (UK) Ltd. 5 Bishops Court Winwick Quay GB-Warrington WA2 8QY Cheshire Tel. +44-870-4 28 88 00 Fax +44-1925-57 37 51 optibelt@optibeltuk.co.uk Netherlands Optibelt Nederland B.V. Haarlemmerstraat 28 NL-2181 HC Hillegom Tel. +31-252-52 82 83 Fax +31-252-53 47 35 info@optibelt.nl
Belgium Optibelt GmbH Filiaal België Draiboomstraat 6 bus 8 B-2160 Wommelgem Tél. +32-3-3 25 22 75 Fax +32-3-3 26 09 55 optibelt@skynet.be France Optibelt France SAS 54, Rue de la Gare B.P. N° 13 F-68520 Burnhaupt-le-Haut Tél. +33-3-89 62 75 10 Fax +33-3-89 62 75 19 optibelt-france@optibelt.fr Transac S.A. 54, Rue de la Gare F-68520 Burnhaupt-le-Haut Tél. +33-3-89 62 75 20 Fax +33-3-89 62 75 29
Arntz Optibelt GmbH Postfach 10 01 32 · D-37669 Höxter Corveyer Allee 15 · D-37671 Höxter Tel. +49 (0)52 71-6 21 Fax +49 (0)52 71-97 62 00 Optibelt GmbH Postfach 10 0132 · D-37669 Höxter Corveyer Allee 15 · D-37671 Höxter Tel. +49 (0)52 71-6 21 Fax +49 (0)52 71-97 62 00
Poland Optibelt Polska Sp. z o.o. ul. Budowlanych 11 PL-41-303 Da˛browa Górnicza Tel. +48-32-260 1175/76 Faks +48-32-260 42 08 biuro@optibelt.net.pl
Russian Federation OOO „Optibelt Power Transmission” Ul. Professionalnaja 151 141806 Dmitrow Tel. +7 (495) 7 27 37 63, 7 27 37 64 Fax +7 (495) 7 27 37 65 info@optibelt.ru
Optibelt Produktions GmbH & Co. KG Carl-Vollrath-Straße 4 D-07422 Bad Blankenburg Tel. +49 (0)3 6741-48 30 Fax +49 (0)3 6741-4 2101
Switzerland Optibelt AG Bodenackerstrasse 70 CH-4657 Dulliken Tel. +41-62-285 50 00 Fax +41-62-285 50 01 vertrieb@optibelt.ch
Austria Optibelt Österreich GmbH Carlbergergasse 38 A-1230 Wien Tel. +43-1-8 65 43 97 Fax +43-1-8 65 43 96 office@optibelt.at
South East Europe Optibelt GmbH Südost-Europa · Office Wien Carlbergergasse 38 A-1230 Wien Tel. +43-1-8 65 31 00 19 Fax +43-1-8 65 31 00 27 office@optibelt.at
Ungarn Optibelt Hungary Kft. Szegedi utca 1 – 5 H-6792 Zsombó Tel. +36-62-595-275 Fax +36-62-255-275 info@optibelt.hu
Italy Optibelt AG Via Dandolo, 1 I-20025 Legnano (Mi) Tel. +39-0331-48 10 20 Fax +39-0331-48 10 75 optibeltitalia@libero.it
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Technical Manual V-Belts
Table of Contents
Product description Drive belts
Optibelt SK wedge belts ...................................................................................6-7 Optibelt RED POWER II high performance wedge belts .......................................... 8 Optibelt VB classical V-belts ................................................................................ 9 Optibelt SUPER TX M=S V-belts – raw edge, moulded cogged ............................... 10 Optibelt Super X-POWER M=S – raw edge, moulded cogged ...........................11-12 Optibelt KB Kraftbands .................................................................................13-14 Optibelt Super VX and Super DVX variable speed belts – raw edge, moulded cogged / double cogged ................................................................... 15 Optibelt DK double section V-belts ..................................................................... 16 Standard properties ......................................................................................... 17 Special constructions ........................................................................................ 18
Product description Drive belts
Optibelt SK wedge belts Sections SPZ, SPA, SPB, SPC, 3V/9N, 5V/15N, 8V/25N ...............................19-20 Optibelt RED POWER II, high performance wedge belts, Sections 3V/9N, 5V/15N, 8V/25N, SPZ, SPA, SPB, SPC ..................................21-22 Optibelt VB classical V-belts Sections 5, Y/6, 8, Z/10, A/13, B/17, 20, C/22, 25, D/32, E/40 ................23-27 Optibelt Super X-POWER M=S wedge belts, SUPER TX M=S V-belts Sections XPZ, XPA, XPB, XPC, 3VX/9NX, 5VX/15NX, ZX/X10, AX/X13, BX/X17, CX/X22 ....28-29 Optibelt KB Kraftbands with wedge belts, Sections SPZ, SPA, SPB, SPC, 3V/9J, 5V/15J, 8V/25J – Optibelt KBX Kraftbands with moulded cogged, raw edge wedge belts, Sections 3VX, 5VX – Optibelt KB Kraftbands with classical V-belts A/HA, B/HB, C/HC, D/HD ..................................................................................................... 30-33 Optibelt RED POWER II Kraftbands with high performance wedge belts, Sections SPB, SPC, 3V/9J, 5V/15J, 8V/25J ...................................................34-35 Optibelt SUPER VX moulded cogged, raw edge variable speed belts ...................36-37 Optibelt DK double section V-belts Sections AA/HAA, BB/HBB, CC/HCC, DD/HDD, 22 x 22, 25 x 22 .................... 38
Product description Metal
Optibelt KS V-grooved pulleys, Optibelt TB taper bushes, Optibelt RE variable speed pulleys ..................................................................... 39 Optibelt KS V-grooved pulleys, types .................................................................. 40 Optibelt pulleys – standards – design criteria – types ........................................... 41
Product description Metal
Optibelt V-grooved pulleys for wedge belts and classical V-belts.........................42-43 Optibelt V-grooved pulleys USA Standard for wedge belts .................................... 44 Optibelt V-pulleys for kraftbands ....................................................................45-46 Optibelt deep grooved pulleys ........................................................................... 47 Optibelt KS V-grooved pulleys for taper bushes ................................................48-56 Optibelt KS V-grooved pulleys for plain boring ................................................57-62 Optibelt RE variable speed pulleys .................................................................63-65 Optibelt TB Taper bushes .................................................................................. 66
4
Technical Manual V-Belts
Table of Contents
Drive calculations
Drive calculation .........................................................................................67-78 Formulae and calculation examples ...............................................................79-81 Drive calculation using the Optibelt CAP computer programme ............................. 82
Power ratings
Optibelt SK ................................................................................................83-87 Optibelt RED POWER II ................................................................................88-92 Optibelt Super X-POWER M=S, SUPER TX M=S .............................................93-100 Optibelt VB .............................................................................................101-111
Special drives
V-flat drives ............................................................................................112-114 Tension/Guide idlers ................................................................................115-117 Twist drives..............................................................................................118-120 Drive belts with Aramid tension cord ..........................................................121-122
Design hints
Belt tension for Optibelt V-belts and kraftbands ............................................123-127 Calculating the axial force .............................................................................. 128 Assistance with tensioning .........................................................................129-130 Installation, maintenance and storage ........................................................131-135 Physical properties ...................................................................................136-139 Problems – causes – remedies ...................................................................140-141 Length measurement conversion and conditions factors, length tolerances ......142-146 Conversion factors ...................................................................................147-148
Special purpose conveyor belts
Product description ........................................................................................ 149 Design guidelines .......................................................................................... 150 Optibelt KB Kraftbands with patterned top surface ............................................. 150 Optibelt PKR endless V-belts and Optibelt KB Kraftbands with patterned top surface ............................................. 151 Optimat PKR open ended V-belting according to DIN 2216 with patterned top surface ............................................................................... 152 Optibelt RR plastic round section belting ........................................................... 153 Optibelt KK plastic V-belting and plastic V-belting with special top surface............. 153
Annex
Table of standards .......................................................................................... 154 Data sheet for calculating/checking drives ..................................................157-158 Data sheet for calculating/checking conveyor systems ..................................159-160
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Technical Manual V-Belts
Standard Range optibelt SK Wedge Belts to BS 3790 DIN 7753 Part 1
Construction Optibelt SK wedge belts consist of
Applications Filler rubber Tension cord
Optibelt SK wedge belts with the sections SPZ, SPA, SPB and SPC were specially developed for all industrial applications from lightly loaded drives, such as those for pumps, to heavily loaded stone crusher drives.
Rubber core
Standards/Dimensions
Fabric cover
Optibelt SK wedge belts SPZ, SPA, SPB and SPC conform to BS 3790, DIN 7753 Part 1 and ISO 4184.
The base and filler rubbers are extruded to precise profile dimensions and weight per unit length to give a better fit in the pulley grooves and vibration free running. Polyester tension cord is standard, with yarn constructions matched to section. The cord is specially impregnated and then encapsulated in a special rubber compound to give a perfect bond to the base and filler rubber. In addition the cord is pre-stretched prior to building into the belt to give lower stretch characteristics on the drive. Due to the special pretreatment the Optibelt SK high performance wedge belt has lower stretch characteristics. As a result, we were able to reduce significantly our rec-ommended minimum allowances for drive centre adjustment, compared to those specified in BS/DIN/ISO.
British, German and ISO standards specify the datum width as a basis for the standardisation of V-belts and grooves. This is the width of a V-belt that remains unchanged when the belt is bent perpendicular to the base of its cross section. The datum length Ld of the belt is the length measured at the position of the datum width and is the basis of standardisation. Optibelt offers a more comprehensive range of belt sections and lengths than those included in any individual standard.
The fabric cover is treated with a wear resistant rubber compound. This renders the belt resistant to oil, heat and cold and to the effects of dust. Properties Optibelt SK wedge belts are the result of intensive product and material development. The use of the best materials and the most advanced production methods, backed up by the most modern static and dynamic test equipment ensures that the finished product is a most efficient method of transmitting power. Optibelt SK wedge belts differ from classical V-belts as follows: ● Considerable reduction in cross sectional area for similar power transmission capability (belt width to height ratio approx. 1:1.2). This allows substantial savings in pulley face widths and therefore costs.
Table 1 Section
SPZ
SPA
SPB
SPC
Belt top width
bo
≈
9.7
12.7
16.3
22
● Lower comparative belt weight per unit length and consequently lower centrifugal force permits belt speeds of up to 42 m/sec.
Datum width
bd
≈
8.5
11
14
19
● Greater flexibility permits higher flexing rates (fB max ≈ 100 s-1).
Belt height
h
≈
8
10
13
18
● Greater surface area relative to belt section ensures better heat dissipation.
Distance down to datum line
hd
≈
2
2, 8
3,5
4,8
● Less deformation of the belt cross section when in contact with the pulley, therefore better contact between the belt edges and the pulley grooves.
Recommended minimum pulley datum diameter
dd min
63
90
140
224
All these properties result in a performance significantly higher than that of classical V-belts with approximately the same top widths. Therefore Optibelt SK wedge belts should be used on all new drive designs. 6
≈
Belt weight (kg/m) -1)
0.074 0.123 0.195 0.377
Max. flexing rate (s
fB max ≈
100
Max. belt speed (m/s)
vmax ≈
55*
* When V > 42 m/sec. Please consult our Applications Engineering Dept.
Technical Manual V-Belts
Standard Range optibelt SK Wedge Belts to USA Standard RMA/MPTA
Construction/Properties
Table 2
Optibelt SK wedge belts to USA Standard RMA/MPTA have the same construction and properties as wedge belts to BS 3790 and DIN 7753 Part 1.
Section
3V/9N
5V/15N 8V/25N
Belt top width
bo
≈
9
15
25
Filler rubber
Belt height
h
≈
8
13
23
Tension cord
Recommended minimum pulley datum diameter
da min
63
140
335
0.074
0.195
0.575
Base rubber Rubber impregnated cover fabric
Belt weight (kg/m)
≈
Max. flexing rate per sec.
fB max ≈
100
Max. belt speed (m/s)
vmax ≈
55*
* When V > 42 m/sec. Please consult our Applications Engineering Dept.
Standardisation/Dimensions
The belt length designation refers to the effective outside length.
The three wedge belt sections standardised in the USA are 3V/9N, 5V/15N and 8V/25N. The cross section dimensions of these belts and the lengths by which they are identified are not in accordance with BS 3790 or DIN 7753.
Example:
The section 3V/9N roughly corresponds to SPZ; and 5V/15N to the section SPB. There is no comparable BS/DIN/ISO wedge belt section for 8V/25N. It is possible to use belts of 3V/9N and 5V/15N section in SPZ-Z/10 or SPB-B/17 pulleys, respectively; but the use of SPZ or SPB belts in RMA/MPTA standard pulleys is not normally recommended. The top widths of the American pulley grooves are narrower than those of the corresponding BS/DIN/ ISO pulleys. This can cause wear on the upper edges of SPZ and SPB section belts and can lead to premature failure. Optibelt SK wedge belts in SPB section have been so designed that they are also suitable for use with 5V/15N pulleys.
Inch designation
Metric designation
3V 750
9N 1905
3V = belt top width (3/8“)
9
≈ belt top width (9 mm)
750 = outside length in inches x 10
N
= designation for single V-belt
Outside length in mm:
1905 = effective outside length in mm (1 inch = 25.4 mm)
La La
= 750 · 25.4 10 = 1905 mm
Applications The use of Optibelt SK wedge belt drives in sections 3V/9N and 5V/15N is recommended for machines exported to countries such as the USA and Canada where these belt sections are standardised and used predominantly. Section 8V/25N is primarily employed in very heavy duty drives such as mills or stone crushers. As these wedge belts transmit very high levels of power, they can sometimes form a more compact drive than the SPC section.
da
For this reason, the 8V/25N section has continued to be used in Europe for such applications. A further advantage is the fact that single wedge belts can be replaced by kraftbands, without changing the pulley geometry, should unexpected belt vibration problems develop. Drive Calculation Drive calculations follow procedures described in this manual. Power ratings for 3V/9N and 5V/15N sections are the same as those for SPZ and SPB sections respectively but, for 3V/9N and 5V/15N the pulley outside diameter is the basis for calculation, not the pitch or datum diameter. Slight differences in the theoretical drive speed and the speed ratio are not significant in practice. 7
Technical Manual V-Belts
Standard Range optibelt RED POWER II High Performance Wedge Belts
Construction
Applications
Optibelt RED POWER II wedge belts.
Optibelt RED POWER II wedge belts were especially developed for mechanical engineering. The fields of application are among others compressors, pumps, presses, fans and other heavy duty drives.
Transverse fibre mixture made of polychloroprene Polyester tension cord/service free Transverse fibre mixture made of polychloroprene
Standardisation/Dimensions Optibelt RED POWER II wedge belts with the sections SPZ, SPA, SPB, SPC, 3V/9N, 5V/25N are standardised according to BS 3790, DIN 7753 Part 1, ISO 4184 and RMA/MPTA.
Rubber core Abrasion resistant cover fabric The tension cord for all sections and cross sections consists of a special polyester cord. Due to the special treatment of the tension cord the Optibelt RED POWER II wedge belt is very low stretch and service free, so that retensioning is not necessary. The fibre mixture over and under the tension cord guarantees highly dynamic load of the belt and provides good flexibility in combination with the polyester tension cord. The cover fabric is extremely wear resistant, flexible and abrasion proof. Properties The high-quality components in connection with product manufacturing make the Optibelt RED POWER II a maintenance free V-belt. Production is continuously monitored using state-of-the-art static and dynamic testing devices. Application with drives using idler pulleys is possible due to the special construction of the Optibelt RED POWER II. Its properties: ● maintenance free ● improved power rating
Section
For the initial fitting of Optibelt RED POWER II the same calculation methods are used as for standard Optibelt V-belts. The tensioning values are to be calculated on the same basis or to be taken from the table on page 130. Once correctly tensioned Optibelt RED POWER II V-belts need no retensioning.
8
9 .7
12.7
16.3
22
8.5
11
14
19
bd
Belt height
h
≈
8
10
13
18
Distance down to datum line
hd
≈
2
2.8
3 .5
4.8
63
90
140
224
0.074
0.123
0.195
0.377
dd min
Recommended minimum pulley datum diameter
≈
Belt weight (kg/m)
Maximum belt speed (m/s)
V-belt tensioning
SPC
Datum width
● SetConstant
The anti-static properties of Optibelt RED POWER II should be confirmed by testing these properties according to ISO 1813. With our acceptance test certificate to EN 10204 “3.1.B” we show proof of the anti-static properties.
SPB
bo
Maximum flex rate (per sec.)
Optibelt RED POWER II are oil resistant, heat resistant and dust protected as standard
SPA
Belt top width
● cost effective ● environmentally friendly
≈
SPZ
(s-1)
fB max ≈
100
vmax ≈
55*
* When V > 42 m/sec. Please consult our Applications Engineering Dept.
Section
3V/9N
5V/15N 8V/25N
Belt top width
bo
≈
9
15
25
Belt height
h
≈
8
13
23
Recommended minimum pulley datum diameter
da min
63
140
335
0.074
0.195
0.575
Belt weight (kg/m)
≈
Max. flexing rate per sec.
fB max ≈
100
Max. belt speed (m/s)
vmax ≈
55*
* When V > 42 m/sec. Please consult our Applications Engineering Dept.
Technical Manual V-Belts
Standard Range optibelt VB Classical V-Belts to BS 3790 and DIN 2215
Construction/Properties
Standardisation/Dimensions
Optibelt VB classical V-belts are manufactured using the same production processes as those for Optibelt SK wedge belts.
Optibelt VB classical V-belts sections Y/6, Z/10, A/13, B/17, C/22, D/32 and E/40 are standardised according DIN 2215 and ISO 4184. The Optibelt range also includes sections 5, 8, 20 and 25 from an earlier edition of DIN 2215. These sections should, where possible, be avoided on replacement and rationalisation grounds.
Filler rubber
The British and ISO Standards specify the datum length for measuring and identifying the belt length. The datum length is the circumferential length of the belt measured at a datum width lp. The earlier DIN standard length designation using the inside length Li is replaced by the datum length Ld. For the conversion factors from pitch to inside length, please see page 143.
Tension cord Base rubber Rubber impregnated cover fabric
The components used are perfectly suited to the power ratings PN shown in later tables. These values are significantly higher than those quoted in BS 3790 or DIN 2218 and therefore offer a greater factor of safety on critical drives. ● Optibelt VB classical V-belts have a belt width to belt height ratio of approx. 1:1.6. ● The maximum belt speed vmax ≈ 30 m/s should not be exceeded. ● The permissible flexing rate is considerably lower than that for wedge belts, at fB max ≈ 80 per second. Applications Optibelt VB classical V-belts are employed primarily as replacements on industrial drives. For new drives, it is almost always recommended that wedge belts be specified for reasons of space and cost. However, special drives, such as V-flat, often can only use classical V-belts. Similarly, difficult drives for agricultural and horticultural machinery are often unsuitable for wedge belts by virtue of the use of small pulleys or back bend idlers. For these applications special belt constructions may be necessary. It is not possible within this Manual to describe all of the special constructions or the calculation data applicable to them. It is therefore requested that all details of such drives are forwarded to our Applications Engineering Department for calculation and recommendation. Table 3 Section
DIN 2215 BS 3790 / ISO 4184 ≈
(5)
6
(8)
10
13
17
(20)
22
(25)
32
40
–
Y
–
Z
A
B
–
C
–
D
E
5
6
8
10
13
17
20
22
25
32
40
4.2
5.3
6.7
8.5
11
14
17
19
21
27
32
Belt top width
bo
Datum width
bd
Belt height
h
≈
3
4
5
6
8
11
12.5
14
16
20
25
Distance down to datum line
hd
≈
1.3
1.6
2.0
2.5
3.3
4.2
4.8
5.7
6.3
8.1
12
Recommended minimum pulley datum diameter
dd min
20
28
40
50
71
112
160
180
250
355
500
≈ 0.018 0.026 0.042 0.064 0.109 0.190 0.266 0.324 0.420 0.690 0.958
Belt weight (kg/m) Max. flexing rate (per sec.)
fB max ≈
80
Max. belt speed (m/s)
vmax
30
≈
9
Technical Manual V-Belts
Standard Range optibelt SUPER TX M=S raw edge, moulded cogged – BS/DIN/ISO, RMA/MPTA
The advantages of the Optibelt SUPER TX M=S V-belts are evident where – ● extremely small pulley diameters ● high belt speeds ● extraordinary power transmission requirements ● high ambient temperatures
The moulded cogs reduce bending stress and give outstanding flexibility. As a result, significantly smaller pulleys than those used with conventional fabric wrapped V-belts can be employed. With Optibelt SUPER TX M=S V-belts drive ratios (i) of up to 12 to 1 are possible. Multi-stage drives can be eliminated.
render the use of wrapped V-belts uneconomical and impractical. Optibelt SUPER TX M=S V-belts sections XPZ, XPA, XPB, XPC, 3VX/9NX, 5VX/15NX, ZX/X10, AX/X13, BX/X17 and CX/X22 offer the best technical and economic solutions for these conditions through their use of high grade components coupled to the most advanced production machinery.
Construction/Properties Optibelt SUPER TX M=S belts consist of
Fabric Tension cord Bedding compound Fibre reinforced base compound Moulded cog
The base compound consists of a polychloroprene rubber mixture filled with fibres arranged to lie across the belt section. These provide an effective support to the tension cord. The result is
Optibelt SUPER TX M=S V-belts are more heat and oil resistant than wrapped V-belts as new, high quality rubber compounds are used. Weight and space requirements are reduced by their ability to transmit higher power even with small diameter pulleys often resulting in a ● significant reduction in cost. Drive Calculation Drive designs using Optibelt SUPER TX M=S belts should be undertaken following the example given on pages 79 to 81. The higher power ratings given in the relevant tables, apply. These are based on a theoretical laboratory running time of 25,000 hours. Pulleys Optibelt SUPER TX M=S V-belts are used with pulleys to BS 3790, DIN 2211, DIN 2217, ISO 4183 and RMA/MPTA. Considerably smaller minimum pulley datum diameters are acceptable.
● very high flexibility ● high transverse stiffness ● considerably increased abrasion/wear resistance and ● insensitivity to slip
Table 4
Recommended minimum pulley diameters (mm) V-belts raw edge, Section Section wrapped moulded cogged
The use of a new type of polyester cord, specially developed Optibelt SUPER TX M=S V-belts imparts
ZX/X10
40
Z/10
50
● remarkably low stretch properties
AX/X13
63
A/13
71
to the belt.
BX/X17
90
B/17
112
CX/X22
140
C/22
180
This specially designed tension cord is securely locked into the bedding compound. Perfect adhesion between the components is ensured even under the highest dynamic loading conditions. The fabric layers at the top of the belt support the tension cord and contribute to the ● greater belt flexibility. The fibre reinforced base compound, in conjunction with the Optibelt tension cord and the moulded cog, offers increased and more efficient transmission of power. 10
Section
Belt top width bo ≈
Datum width
Belt height
Distance down to datum line
Belt weight
bd
h≈
hd ≈
(kg/m) ≈
6
2.5
0.062
ZX/X10
10
8.5
AX/X13
13
11
8
3.3
0.099
BX/X17
17
14
11
4.2
0.165
CX/X22
22
19
14
5.7
0.276
Technical Manual V-Belts
Standard Range optibelt Super X-POWER M=S raw edge, moulded cogged – BS/DIN/ISO, RMA/MPTA
Advantages Super X-POWER M=S wedge belts are ideally used in the following conditions
The special tension cord and the optimum cog shape enable higher dynamic and load transmission capabilities, improved bending stress and a higher temperature resistance.
● extremely small pulley diameters ● higher rotational speeds ● higher ambient temperatures.
optibelt Super X-POWER M=S
Super X-POWER M=S wedge belts offer ● ● ● ● ● ●
higher power transmission minimal belt stretch much longer service intervals – maintenance free superior running characteristics – smoother running outstanding heat and oil resistance formation of sets without measurement, M=S
Drive ratios i = 1:12 are possible with Super X-POWER. Multi-stage drives can be eliminated. Optibelt Super X-POWER M=S wedgebelts in sections XPZ, XPA, XPB, XPC, 3VX/9NX and 5VX/15NX, because of the use of the best materials and manufacturing techniques, offer ideal solutions to many drive problems.
Because of the possibilities of greater power transmission, smaller pulley diameters and higher motor speeds it is often possible to reduce drive space and weight and thus permit ● significant drive cost reductions
Construction/Characteristics Optibelt Super X-POWER M=S consist of:
Applications Machinery:
– compressors – fans – road making equipment
1 Belt top surface/ Cover fabric
– pumps – wood working machines
2 Tension cord low stretch Polyester 3 CR/cushion compound 4 Beltbase/ CR-compound with transverse fibres 5 Moulded cogs
– high performance saws – special machines Machine tools:
– milling and drilling machines – grinding machinery – lathes
The use of Optibelt Super X-POWER M=S is recommended on drives where wrapped belts may be borderline for any one of a variety of reasons i.e. power, pulley diameter, ambient temperatur etc.
1. The special Polyester-tension cord of Super X-POWER M=S has an extremely low stretch and enables maintenance free drives. 2. The structure of the cover fabric offers support to the tension cord without impairing the very high flexibility of the Super X-POWER. 3. The belt base structure consists of a high performance Chloroprene compound incorporating transversely oriented fibres for strength with no loss of flexibility and yet smooth and quiet running characteristics. 11
Technical Manual V-Belts
Standard Range optibelt Super X-POWER M=S
Power rating per belt PN [kW]
– raw edge, moulded cogged – BS/DIN/ISO, RMA/MPTA
45
Drive Calculation
40
Drive design using Optibelt Super X-POWER M=S belts should be undertaken following the example given on pages 78 to 80. The higher power ratings given in the relevant tables, apply. These are based on a theoretical laboratory running time of 25,000 hours.
XPB Super X-POWER M=S
35
Standardisation/Dimensions The cross sections and dimensions of Optibelt Super X-POWER M=S V-belts correspond to BS 3790:1981, DIN 7753 Part 1, DIN 2215, ISO 4184 and RMA/MPTA. The basis for the length measurement is the datum length (Ld) to BS/ DIN/ISO.
30 25
XPB SUPER TX M=S
20
Table 5 Section
15 10 1000
2000
3000
4000
5000
Speed n [min-1]
Belt top width bo ≈
Datum width
Belt height
bd
h≈
XPZ
9.7
XPA
12.7
11
XPB
16.3
14
XPC
22 9 15
3VX/9NX 5VX/15NX
8.5
8
Distance Belt down to weight datum line hd ≈ (kg/m) ≈ 2
0.065
10
2.8
0.105
13
3.5
0.183
19
18
4.8
0.340
—
8
—
0.065
—
13
—
0.183
Belt Tension / Static Shaft Loading
Pulleys
Belt tension and static shaft loading are calculated as for wrapped belts. The shaft loading is usually no greater than that for the same drive using wrapped belts. It is often possible, due to a reduction in the number of belts used, that the shaft loading could be lower. The individual Super X-POWER M=S belt requires a higher tension than the wrapped belt in order to utilise its greater power transmission capability.
Optibelt Super X-POWER M=S are used with pulleys to BS 3790, DIN 2211, DIN 2217, ISO 4183 and RMA/MPTA. Considerably smaller minimum pulley datum diameters are acceptable.
The precision ground sides of the Optibelt Super X-POWER M=S V-belts ensure uniform seating in the pulley grooves, resulting in smoother running.
Table 6
Recommended minimum pulley diameters (mm) wedge belts raw edge, Section wrapped moulded cogged Section
Test Results
XPZ
Optibelt Super X-POWER M=S exhibit a considerably improved tension retention when compared to the earlier raw edge, moulded cogged construction. Comparison test: Tension retention (N), Power P = 13,0 kW, n1 = 4700 min-1
500
336.3
336.53
336.3
239.88
239.88
227.5
Optibelt SUPER TX M=S XPA
0.33
1 Life [h]
12
XPA
71
SPA
90
XPB
112
SPB
140
XPC
180
SPC
224
5VX/15NX
600
Spantension [N] Optibelt Super X-POWER M=S
0
SPZ
3VX/9NX
324
225
400 300 200
6
24
Span tension [N]
550
56
56 112
3V/9N 5V/15N
63
63 140
Technical Manual V-Belts
Standard Range optibelt KB Kraftbands
Construction The Optibelt KB Kraftbands are made up of individual V-belts rigidly connected by a joining band. This compact drive element with single belt characteristics is also known as a joined V-belt. According to application kraftbands are fitted with two, three, four or five ribs. It is also possible to provide the joining band with special patterns. Raw edge, moulded cogged Optibelt KBX Kraftbands with the belt sections 3VX/9JX, 5VX/15JX, XPZ, XPA, AX/HAX, BX/HBX are available upon request in lengths from 1250 to 3550 mm.
In mechanical engineering kraftbands are successfully used for example in vibrating screens, saw mills, stone crushers, road construction machinery, pulpers, compressors, fans, lathes, grinding and milling machines. In agricultural machinery Optibelt KB Kraftbands are also used as clutching belts. Due to the single belt characteristics it is possible to achieve smooth engagement. For conveying, Optibelt KB Kraftbands can be supplied with special top surfaces. With these patterned top surfaces they are especially suitable for transporting containers and heavy material, for example for loading aircraft. See also the chapter on conveyor belts.
Optibelt KB PKR 0
Optibelt KBX PKR 3
Applications Optibelt KB Kraftbands are predominantly employed for solving problems associated with: ● pulsating loads ● large centre distances in combination with small pulley diameters (long span lengths) ● vertical shafts ● reversing drives ● V-flat drives ● clutching drives ● conveyor systems (materials handling technology))
Kraftbands must be protected from direct contact with undesired material such as stones, grit, wood shavings etc. In such operating conditions the drive has to be protected by protective guards or similar devices. Standardisation – Optibelt KB Kraftband Optibelt KB Kraftbands with high performance wedge belts are manufactured according to international practice using sections 3V/9J, 5V/15J, 8V/25J. They comply with the standard ISO 8419 lengths in the reference system. The pulleys are standardised to ISO 5290. 13
Technical Manual V-Belts
Standard Range optibelt KB Kraftbands
The ISO Committee TC 41/SC1 has used the American Standard RMA/MPTA as the basis for this international standard. The sections 3V, 5V, and 8V have been designated 9J, 15J and 25J respectively. Example: 9J 9 ≈ approx. 9 mm nominal top width of pulley groove J = joined
Kraftband sets must be used for drives with more than 5 ribs. The following combinations should be used. Important:
Table 7 No. of ribs
Kraftband combination
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
2 3 4 5 3/3 3/4 4/4 5/4 5/5 4/3/4 4/4/4 4/5/4 5/4/5 5/5/5 4/4/4/4 4/4/5/4 5/4/4/5 5/4/5/5 5/5/5/5 4/4/5/4/4 5/4/4/4/5 5/4/5/4/5 5/5/4/5/5 5/5/5/5/5 5/4/4/4/4/5 5/5/4/4/4/5 5/5/4/4/5/5 5/5/5/4/5/5 5/5/5/5/5/5 5/4/4/5/4/4/5 5/5/4/4/4/5/5 5/5/5/4/4/5/5 5/5/5/4/5/5/5 5/5/5/5/5/5/5 5/5/4/4/4/4/5/5 5/5/5/4/4/4/5/5 5/5/5/4/4/5/5/5 5/5/5/5/4/5/5/5 5/5/5/5/5/5/5/5
Standardisation – Classical V-Belts In the course of international and national standardisation, Optibelt KB Kraftbands using classical V-belts have been brought into line with the USA Standard RMA/MPTA (A, B, C, D)and the USA Standard ASAE S 211. ... (HA, HB, HC, HD). The RMA/MPTA standard applies for the use of kraftbands in mechanical engineering; the agricultural machinery standard ASAE S 211. ... applies when using kraftbands in agricultural machinery. Despite the different section designation, the belt cross sections are identical in both standards. The pulleys are standardised according to ISO 5291.
Optibelt KB Kraftband Optibelt KB Kraftbands are employed for extreme shock loads, large centre distances in combination with comparatively small pulley diameters and vertical drives. They are used for coupling drives and for conveying works. With the same power transmission, the kraftband offers better running properties and/or safety. Optibelt Kraftbands with sections SPZ, SPA and SPC can be applied in standard V-grooved pulleys according to BS 3790, DIN 2211 and ISO 4183.
Drive Calculation Drives using Optibelt KB Kraftbands in mechanical engineering are to be fitted as shown in the calculation examples on pages 78 to 80 of this manual using the power ratings of the relevant belt sections. In ISO 5290, the nominal top width of the pulley groove is specified as the base value. The position of the datum diameter is given as an approximate value. For the geometric and power calculation, the outside diameter is used. Small computational differences in rotational frequency and speed ratio have no practical effect. For kraftbands with classical V-belts, as a rule, the calculation uses the datum diameter as well. The power ratings correspond to the sections of the classical V-belts. For conversion factors for Optibelt KB Kraftbands, see page 144. Drives on agricultural machinery employ special design calculations and methods. We, therefore, request that you send us your technical details. 14
Where kraftbands are to be run in sets they should be ordered as sets.
Ordering Example The drive of a mill is equipped with Optibelt KB Kraftbands, size 5V 1600/15J 4064 mm La. It was calculated with 18 ribs. In total, 4 kraftbands are required – 2 belts each with 4 ribs and 2 belts each with 5 ribs (see Table 7). The order wording would then read: 1 set comprising 2 Optibelt KB Kraftbands 4-5V 1600/15J 4064 mm La and 2 Optibelt KB Kraftbands 5-5V 1600/15J 4064 mm La. 4 or 5 5V/15J 1600 4064
= = = =
number of ribs section outside length in inches: 10 outside length in mm
Technical Manual V-Belts
Standard Range optibelt SUPER VX and SUPER DVX Variable Speed Belts – Raw Edge – Moulded Cogged – DIN 7719/ISO 1604
Optibelt SUPER VX Variable Speed Belts – Raw Edge – Moulded Cogged –
Optibelt SUPER DVX Variable Speed Belts – Eaw Edge – Moulded Double Cogged –
Rising demands made on the variable speed belt by the continuous increase in transmitted power led to the development of the raw edge, moulded cogged variable speed belt.
Further increases in demand on the performance of drive elements and the trend towards designing ever smaller, space saving drive units, led to the development of the double cogged, raw edge Optibelt SUPER DVX variable speed belt.
The base compound consists of a chloroprene and rubber mixture filled with transversely oriented fibres. The high grade and exceptionally low stretch polyester or Aramid tension cord is embedded in a rubber cushioning compound. It is effectively supported by the reinforced base compound and by layers of compound impregnated fabric around the outside of the section. For exceptionally difficult drives layers of special cross cord material can be used between the base and cushion compounds. The special properties of the raw edge, moulded cogged, variable speed belt are: ● ● ● ● ● ●
high power transmission capability excellent flexibility in the direction of travel extreme transverse rigidity especially smooth running superior resistance to abrasion and slip long service life
Sections Belt widths of up to100 mm Belt thicknesses of 5–25 mm Dimensions
The features of the SUPER DVX variable speed belt can be summarised as follows: ● ● ● ● ● ●
acceptance of extremely high axial forces high flexibility and low flex fatigue improved heat dissipation use with the smallest pulley diameters extremely smooth running at high belt speeds long service life
Sections
Lengths up to 5000 mm Standardised dimensions to BS/DIN/ISO and USA Standard RMA/MPTA Applications industrial machinery variable speed drives printing machinery gearboxes agricultural machinery textile machinery machine tools automotive technology
Double cogged Optibelt variable speed belts make it possible to employ the smallest diameter pulleys, even below standard recommendations. The double cogged design improves heat dissipation thereby significantly reducing the belt running temperature. The production method and the structure of the belt have been derived from the raw edge SUPER VX variable speed belt. Depending upon the application, this belt can also be equipped with layers of special cross cord material in the base compound. The belt is double cogged, with the depth and spacing of the cogs matched to the specific belt section. The polyester or Aramid tension cord ensures ideal power transmission, increased service life, and extremely low stretch characteristics.
special drives compactors multi-colour offset drives variable diameter pulley sets thresher drum drives winding machinery lathes snowmobile drives
Belt widths of 20–85 mm Belt thicknesses of 10–30 mm Dimensions Lengths ranging from 600 to 3500 mm Sections and dimensions comparable to BS/DIN/ISO
Optibelt VS Variable Speed Belts – Wrapped The first generation variable speed belt was the Optibelt VS. In its design, the Optibelt VS is similar to the wrapped, classical V-belt or wedge belt. This belt construction is still available. Sections and dimensions: upon request 15
Technical Manual V-Belts
Standard Range optibelt DK Double Section V-Belts
Construction A cross section of the Optibelt DK double section V-belt reveals a hexagon made up of two congruent trapeziums. The neutral axis containing the tension cord is exactly half way up the belt section. Optibelt DK double section V-belts comprise:
Base rubber Tension cord Base rubber Rubber impregnated cover fabric
Properties/Applications The polyester tension cord positioned at the centre of the section imparts extreme flexibility and low stretch properties to the Optibelt DK double section V-belt. The belt is therefore particularly suited for flexing in different directions in the same plane. Optibelt DK double section V-belts are used where several pulleys are arranged in one plane and the direction of rotation of one or more of the driven pulleys must be changed without crossing the belts. Because of the positioning of the tension cord in the neutral axis and the special shape of the double section V-belt, the tension cord is not subjected to any force other than tension unlike standard V-belts bent around an outside idler. The Optibelt DK double section V-belt comes into its own on typical serpentine arrangements. Special constructions are also possible. In the main, double section V-belts are used on agricultural machinery. They are, however, also finding increasing use in industrial machinery applications.
There are also equivalent sections HAA, HBB, HCC and HDD, in accordance with the USA Standard ASAE S 211. ..., thereby ensuring an international interchange facility. The effective/nominal length of the Optibelt DK double section V-belt is measured on the effective/outside diameter of the measuring pulley. This length equates roughly to length of the belt at its widest part, the middle length. Conversion factors are as follows: Section AA/HAA effective length = middle length – 4 mm Section BB/HBB effective length = middle length – 8 mm Section CC/HCC effective length = middle length + 3 mm Section DD/HDD effective length = middle length! Experience has shown that, in practical use/ordering, these conversion factors can be ignored. Grooved Pulleys No special pulleys are required for Optibelt DK double section V-belts. Pulleys conforming to ISO 4183, BS 3790, DIN 2211, DIN 2217 and ASAE S 211. ... are suitable. Section AA/HAA in grooved pulleys for A/13-SPA Section BB/HBB in grooved pulleys for B/17-SPB Section CC/HCC in grooved pulleys for C/22-SPC Section DD/HDD in grooved pulleys for D/32 Special Sections For special applications, we also supply double section V-belts widths 22 x 22 and 25 x 22. These are not standardised. Drive Calculation Drive calculations for Optibelt DK double section V-belts differ from those given in this manual for two pulley drives. Multi pulley calculations are so complicated that they cannot be shown here. Effective lengths, rotational speeds, transmission ratios and belt speeds are determined by the effective/outside pulley diameters. Our engineers will be pleased to assist in the design of drives using Optibelt DK double section V-belts.
Standardisation The cross dimensions of the Optibelt DK double section V-belts correspond to DIN 7722 and ISO 5289.
Table 8 DIN/ISO section Section
Abbreviated designation
HAA
HBB
HCC
HDD
AA
BB
CC
DD
–
–
22 x 22 25 x 22
Belt width
b≈
13
17
22
32
22
25
Belt hight
h≈
10
13
17
25
22
22
80
125
224
355
280
280
0.250
0.440
0.935
0.511
0.625
Recommended minimum pulley datum diameter Belt weight (kg/m) Max. belt speed (m/s) 16
da min
≈ 0.150 vmax ≈
30
Technical Manual V-Belts
Standard Properties
According to the respective requirements, all Optibelt V-belts are manufactured using carefully selected basic materials and continuously updated technical procedures. Regular routine checks during production, sophisticated lab tests and careful testing of the raw materials used guarantee a uniformly high level of quality that can be expected from every Optibelt drive element. Reliability and long service life are considered the most important criteria.
Oil Resistant Oil resistance prevents damaging through mineral oils and mineral fats, insofar as those substances are not continuously and in great quantities in contact with the Vbelts. Animal and vegetable fats as well as water-soluble cooling and cutting oils result in a reduction of the service life. For higher concentrations, we recommend the use of our Super X-POWER special constructions “05” and SUPER TX V-belts respectively.
S=C PLUS “SetConstant” This stands for wrapped V-belts that can be used in a set without measuring.
The advantages are the following: saves energy, high efficiency of approximately 97 % evenly shared power transmission incorporating the world famous S=C PLUS tolerances: always around the nominal length extremely low stretch longer service life set code numbers are not required reduces vibrations with resultant smooth running requires only little adjustment reduces selfheating, thus improves ageingresistance longer maintenance intervals reduced belt inventory resultant cost reductions
Heat Resistant Standard V-belts allow ambient temperatures of up to approximately + 70 °C. Higher temperatures lead to a premature ageing and hardening of the V-belts. Therefore, we recommend in such cases the use of our special construction RED POWER II, Super X-POWER or SUPER TX. For details see page 18.
Example for S=C PLUS length tolerances for a highperformance wedge belt with 5000 mm datum length
S=C PLUS
Dust Protection Dust reduces the service life of V-belts enormously. Wear resistant fabric covers make Optibelt V-belts resistant to dust. This is demonstrated by its continual application in cement factories, mills, in the stone processing industries, and in the mining industry.
M=S “Matched Sets” This stands for rawedge, moulded cogged V-belts that can be used in a set without measuring (Super X-POWER and SUPER TX). Due to specific manufacturing techniques, extremely narrow length tolerances can be achieved so that V-belts of a given nominal length can be combined without further measurement. Ground belt flanks result in a smooth running operation. The even power transmission of all V-belts ensures a high efficiency and thus helps save energy. Set code numbers are not necessary, there is no set bundling. As a consequence, storage and costs can be reduced.
The dimension (A) is the tolerance permitted according to DIN of an individual V-belt with a length of 5000 mm. If you want to assemble sets for multi-groove drives, the individual elements may not show deviations of more than 6 mm (B) between any belt in a set. The tolerance of the Optibelt S=C PLUS V-belt is considerably lower than the set tolerance permitted according to the standard. S=C PLUS tolerances are always around the nominal length.
17
Technical Manual V-Belts
Special Constructions
Anti-Static Optibelt V-belts do have anti-static properties. In the case of V-belts with inadequate anti-static properties, the electrostatic charge can be so high that there is a risk of ignition due to sparking. The use of anti-static belts requires a check of the required properties in accordance with ISO 1813. We present proof of the anti-static properties of the belts in the form of our final inspection certificate according to EN 10204 “3.1.B”. We charge an extra fee for this additional service. We strongly recommend that anti-static belts be ordered separately. Extra Heat Resistant V-Belts, Special Construction XHR The service life of standard Optibelt V-belts can be greatly reduced due to the effects of temperature. In case of ambient temperatures that vary constantly between approx. + 70 °C up to approx. + 90 °C, we recommend that RED POWER II, Super X-POWER or SUPER TX belts be used. Special rubber compounds largely prevent premature ageing and brittleness. In borderline cases, trials are recommended, as individual drive parameters such as belt speed and pulley diameter also have an influence on the belt life. The diagram below illustrates the high degree to which the ambient temperature influences the service life of V-belts. It shows the improvements in service life heat resistant belts offer within the hightemperature range in comparison to the standard design. However, you cannot expect the same service life as under normal conditions.
Smooth Running Selected V-belts, Special Construction LR Drives that have to fulfil high requirements with regard to smooth running – that is with variations of shaft centre distances – like for example lathes and grinders, and are supposed to guarantee a vibration free operation, may be equipped with Optibelt V-belts “selected smooth running”. Shaft centre distance fluctuations are measured electronically on test machines. The measurements comply with the Optibelt Works Standards or the conditions agreed with our customers. Mining Industry Optibelt SK wedge belts and Optibelt VB classical V-belts are approved in accordance with DIN 22100-7 and can be used in underground mining as well as in spaces and areas above ground that are exposed to fire and explosion risks. Please request information on sections and lengths separately. Applications with Other Special Constructions For particular applications such as general engineering machinery, agricultural machinery and horticulture, further special constructions are also available in intermediate sizes for ● special drives with tensioning, guide and idler pulleys ● clutching functions ● shock loads ● extreme operating conditions These Optibelt V-belt special constructions can incorporate different tension cord types and arrangements with a variety of rubber mixtures, different fabric qualities and a differing number of fabric covers and top surface elements.
Extra Cold Resistant V-Belt Special Construction XCR Minimum order quantities on request.
All special executions and intermediate lengths must be ordered in sets or in multiples thereof.
Service life
It is not possible to describe all criteria within the framework of these descriptions. For further information please contact our Applications Engineering Department.
heat resistant belts standard construction
Ambient temperature (°C)
18
Technical Manual V-Belts
Standard Range optibelt SK Wedge Belts to BS 3790/DIN 7753 Part 1/ISO 4184
SPZ
SPA
SPB
SPC
Section SPZ
Section SPA
Section SPB
Section SPC
Datum length ISO (mm) Ld
Datum length ISO (mm) Ld
Datum length ISO (mm) Ld
Datum length ISO (mm) Ld
487 512 562 587 612
1037 1047 1060 1077 1087
1637 1662 1687 1700 1737
732 757 782 800 807
1382 1400 1407 1432 1457
2120 2132 2182 2207 2232
3350 3382 3550 3750 4000
1250 1320 1400 1450 1500
2000 2120 2240 2360 2500
630 637 662 670 687
1112 1120 1137 1162 1180
1762 1787 1800 1812 1837
832 850 857 882 900
1482 1500 1507 1532 1557
2240 2282 2300 2307 2332
3750 3800 4000 4050 4250
4250 4500
1600 1700 1750 1800 1850
2650 2800 3000 3150 3350
710 722 737 750 762
1187 1202 1212 1237 1250
1862 1887 1900 1937 1987
907 932 950 957 982
1582 1600 1607 1632 1657
2360 2382 2432 2482 2500
4300 4500 4560 4750 4820
1900 2000 2020 2060 2120
3550 3750 4000 4250 4500
772 787 800 812 825
1262 1287 1312 1320 1337
2000 2037 2120 2137 2150•
1000 1007 1032 1060 1082
1682 1700 1707 1732 1757
2532 2582 2607 2632 2650
5000 5070 5300 5600 6000
2150 2180 2240 2280 2360
4750 5000 5300 5600 6000
837 850 862 875 887
1347 1362 1387 1400 1412
2187 2240 2287 2360 2500
1107 1120 1132 1157 1180
1782 1800 1807 1832 1857
2682 2732 2782 2800 2832
6300 6700 7100 7500 8000
2400 2500 2650 2680 2800
900 912 925 937 950
1437 1462 1487 1500 1512
2540• 2650 2690• 2800 2840•
1207 1232 1250 1257 1272
1882 1900 1907 1932 1957
2847 2882 2932 2982 3000
6300 6700 7100 7500 8000
2840 2850 2900 3000 3150
962 987 1000 1012 1024
1537 1562 1587 1600 1612
3000 3150 3350 3550
1282 1307 1320 1332 1357
1982 2000 2032 2057 2082
3032 3082 3150 3182 3282
8500 9000 9500 10000 10600
3250 3350 3450 3550 3650
11200 12500
Maximum production length: 4 500 mm Ld Minimum order quantity: Over 1 800 mm = 20 belts for non standard lengths 60 belts for certain special constructions
Maximum production length: 4 500 mm Ld Minimum order quantity: Over 1 800 mm = 31 belts for non standard lengths 93 belts for certain special constructions
Weight: ≈ 0.074 kg/m
Weight: ≈ 0.123 kg/m
Datum length Ld
pitch length Lw/Lp
Lengths in bold print are in the S=C PLUS range.
Max. production length: 10 000 mm Ld Minimum order quantity: Over 1800 mm = 25 belts for non standard lengths 75 belts for certain special constructions Weight: ≈ 0.195 kg/m
Max. production length: 18 000 mm Ld Minimum order quantity: Over 2000 mm = 16 belts for non standard lengths 48 belts for certain special constructions Weight: ≈ 0.377 kg/m
• Non stock items
19
Technical Manual V-Belts
Standard Range optibelt SK Wedge Belts to USA Standard RMA/MPTA
3V/9N
5V/15N
8V/25N
Section 3V/9N
Section 5V/15N
Section 8V/25N
Designation
20
Designation (outside length mm) La
Designation
Designation (outside length mm) La
Designation
Designation (outside length mm) La
3V 3V 3V 3V 3V
250 265 280 300 315
9N 9N 9N 9N 9N
635 673 711 762 800
5V 5V 5V 5V 5V
530 560 600 630 670
15N 1346 15N 1422 15N 1524 15N 1600 15N 1702
8V 1000 8V 1120 8V 1180 8V 1250 8V 1320
25N 25N 25N 25N 25N
2540 2845 2997 3175 3353
3V 3V 3V 3V 3V
335 355 375 400 425
9N 851 9N 902 9N 952 9N 1016 9N 1079
5V 5V 5V 5V 5V
710 750 800 850 900
15N 1803 15N 1905 15N 2032 15N 2159 15N 2286
8V 1400 8V 1500 8V 1600 8V 1700 8V 1800
25N 25N 25N 25N 25N
3556 3810 4064 4318 4572
3V 3V 3V 3V 3V
450 475 500 530 560
9N 1143 9N 1206 9N 1270 9N 1346 9N 1422
5V 950 5V 1000 5V 1060 5V 1120 5V 1180
15N 2413 15N 2540 15N 2692 15N 2845 15N 2997
8V 1900 8V 2000 8V 2120 8V 2240 8V 2360
25N 25N 25N 25N 25N
4826 5080 5385 5690 5994
3V 3V 3V 3V 3V
600 630 670 710 750
9N 1524 9N 1600 9N 1702 9N 1803 9N 1905
5V 1250 5V 1320 5V 1400 5V 1500 5V 1600
15N 3175 15N 3353 15N 3556 15N 3810 15N 4064
8V 2500 8V 2650 8V 2800 8V 3000 8V 3150
25N 25N 25N 25N 25N
6350 6731 7112 7620 8001
3V 800 3V 850 3V 900 3V 950 3V 1000
9N 2032 9N 2159 9N 2286 9N 2413 9N 2540
5V 1700 5V 1800 5V 1900 5V 2000 5V 2120
15N 4318 15N 4572 15N 4826 15N 5080 15N 5385
8V 3350 8V 3550 8V 3750 8V 4000 8V 4250
25N 8509 25N 9017 25N 9525 25N 10160 25N 10795
3V 1060 3V 1120 3V 1180 3V 1250 3V 1320
9N 2692 9N 2845 9N 2997 9N 3175 9N 3353
5V 2240 5V 2360 5V 2500 5V 2650 5V 2800
15N 5690 15N 5994 15N 6350 15N 6731 15N 7112
8V 4500 8V 4750 8V 5000
25N 11430 25N 12065 25N 12700
3V 1400
9N 3556
5V 3000 5V 3150 5V 3350 5V 3550
15N 7620 15N 8001 15N 8509 15N 9017
Maximum production length: 4 250 mm La Minimum order quantity: Over 1 800 mm La = 20 belts for non standard lengths 60 belts for certain special constructions
Maximum production length: 10 000 mm La Minimum order quantity: Over 1 800 mm La = 25 belts for non standard lengths 75 belts for certain special constructions
Weight: ≈ 0.074 kg/m
Weight: ≈ 0.195 kg/m
Maximum standard production length: 18 000 mm La Over 18 000 to 19 000 mm on request Minimum order quantity: Over 2540 mm La = 11 belts for non standard lengths 33 belts for certain special constructions Weight: ≈ 0.575 kg/m
Lengths in bold print are in the S=C PLUS range.
Technical Manual V-Belts
Standard Range optibelt RED POWER II High Performance Wedge Belts USA Standard RMA/MPTA
3V/9N
5V/15N
8V/25N
Section 3V/9N
Section 5V/15N
Section 8V/25N
Designation
Designation (outside length mm) La
Designation
Designation (outside length mm) La
Designation
Designation (outside length mm) La
3V 3V 3V 3V 3V
475 500 530 560 600
9N 1206 9N 1270 9N 1346 9N 1422 9N 1524
5V 5V 5V 5V 5V
530 560 600 630 670
15N 1346 15N 1422 15N 1524 15N 1600 15N 1702
8V 1000 8V 1120 8V 1180 8V 1250 8V 1320
25N 25N 25N 25N 25N
2540 2845 2997 3175 3353
3V 3V 3V 3V 3V
630 670 710 750 800
9N 1600 9N 1702 9N 1803 9N 1905 9N 2032
5V 5V 5V 5V 5V
710 750 800 850 900
15N 1803 15N 1905 15N 2032 15N 2159 15N 2286
8V 1400 8V 1500 8V 1600 8V 1700 8V 1800
25N 25N 25N 25N 25N
3556 3810 4064 4318 4572
3V 850 3V 900 3V 950 3V 1000 3V 1060
9N 2159 9N 2286 9N 2413 9N 2540 9N 2692
5V 950 5V 1000 5V 1060 5V 1120 5V 1180
15N 2413 15N 2540 15N 2692 15N 2845 15N 2997
8V 1900 8V 2000 8V 2120 8V 2240 8V 2360
25N 25N 25N 25N 25N
4826 5080 5385 5690 5994
3V 1120 3V 1180 3V 1250 3V 1320 3V 1400
9N 2845 9N 2997 9N 3175 9N 3353 9N 3556
5V 1250 5V 1320 5V 1400 5V 1500 5V 1600
15N 3175 15N 3353 15N 3556 15N 3810 15N 4064
8V 2500 8V 2650 8V 2800 8V 3000 8V 3150
25N 25N 25N 25N 25N
6350 6731 7112 7620 8001
5V 1700 5V 1800 5V 1900 5V 2000 5V 2120
15N 4318 15N 4572 15N 4826 15N 5080 15N 5385
8V 3350 8V 3550 8V 3750 8V 4000 8V 4250
25N 8509 25N 9017 25N 9525 25N 10160 25N 10795
5V 2240 5V 2360 5V 2500 5V 2650 5V 2800
15N 5690 15N 5994 15N 6350 15N 6731 15N 7112
8V 4500 8V 4750
25N 11430 25N 12065
5V 3000 5V 3150
15N 7620 15N 8001
Maximum production length: 4000 mm La
Maximum production length: 9525 mm La
Maximum production length: 12 065 mm La
Non standard lengths on request
Non standard lengths on request
Non standard lengths on request
Weight: ≈ 0.074 kg/m
Weight: ≈ 0.195 kg/m
Weight: ≈ 0.575 kg/m
21
Technical Manual V-Belts
Standard Range optibelt RED POWER II High Performance Wedge Belts BS 3790/DIN 7753 Part 1/ISO 4184
SPZ
SPA
SPB
SPC
Section SPZ
Section SPA
Section SPB
Datum length ISO (mm) Ld
Datum length ISO (mm) Ld
Datum length ISO (mm) Ld
Section SPC Datum length ISO (mm) Ld
1202 1212 1237 1250 1262
1587 1600 1612 1637 1662
2137 2187 2240 2287 2360
1207 1232 1250 1257 1282
1700 1707 1732 1757 1782
2282 2300 2307 2332 2360
3082 3150 3182 3282 3350
1250 1320 1400 1500 1600
2000 2120 2240 2360 2500
1287 1312 1320 1337 1362
1687 1700 1737 1762 1787
2500 2650 2800 3000 3150
1307 1320 1332 1357 1382
1800 1807 1832 1857 1882
2382 2432 2482 2500 2532
3382 3550 3750 4000
1700 1800 1900 2000 2120
2650 2800 3000 3150 3350
1387 1400 1412 1437 1462
1800 1837 1862 1887 1900
3350 3550
1400 1407 1432 1457 1482
1900 1907 1932 1957 1982
2582 2607 2632 2650 2682
2240 2360 2500 2650 2800
3550 3750 4000 4250 4500
1487 1500 1512 1537 1562
1937 1987 2000 2037 2120
1500 1507 1532 1557 1582
2000 2032 2057 2082 2120
2732 2782 2800 2832 2847
3000 3150 3350 3550 3750
4750 5000 5300 5600 6000
1600 1607 1632 1657 1682
2132 2182 2207 2232 2240
2882 2932 2982 3000 3032
4000 4250 4500 4750 5000
6300 6700 7100 7500 8000
5300 5600 6000 6300 6700
8500 9000 9500 10000
7100 7500 8000
Maximum production length: 4 000 mm Ld
Maximum production length: 4 000 mm Ld
Non standard lengths on request
Non standard lengths on request
Weight: ≈ 0.074 kg/m
Weight: ≈ 0.123 kg/m
Maximum production length: 8 000 mm Ld
Non standard lengths Non standard lengths on request on request Weight: ≈ 0.195 kg/m
Datum length Ld
22
pitch length Lw/Lp
Maximum production length: 10 000 mm Ld
Weight: ≈ 0.377 kg/m
Technical Manual V-Belts
Standard Range optibelt VB Classical V-Belts to BS3790/DIN 2215/ISO 4184
5
Section 5*
Y/6
Section Y/6*
8
Section 8
Inside length Li (mm)
Datum length ISO Ld (mm)
Inside length Li (mm)
200 239 270 290 310
190 229 260 280 300
295 315 350 415 440
280 300 335 400 425
335∗ 375∗ 420∗ 445∗ 470∗
315∗ 355∗ 400∗ 425∗ 450∗
Z 11 Z 121/2 Z 14 Z 15 Z 16
312∗ 337∗ 397∗ 422∗ 447∗
325 332 345 385 435
315 322 335 375 425
465 515 555 615 865
450 500 540 600 850
495∗ 510∗ 550∗ 580∗ 595∗
475∗ 490∗ 530∗ 560∗ 575∗
Z 17 Z 18 Z 19 Z 193/4 Z 20
485 510 540 564 610
475 500 530 554 600
620∗ 650∗ 690∗ 720∗ 730∗
600∗ 630∗ 670∗ 700∗ 710∗
770∗ 795∗ 820∗ 845 870
750∗ 775∗ 800∗ 825 850
Other sizes on request
Weight: ≈ 0.018 kg/m
Weight: ≈ 0.026 kg/m
Datum length Ld
pitch length Lw/Lp
Datum length ISO Ld (mm)
Inside length Li (mm)
Section Z/10
Datum length ISO Ld (mm)
Other sizes on request
Z/10
Belt no.
Datum length ISO Ld (mm)
Belt no.
Datum length ISO Ld (mm)
Inside length Li (mm)
Belt no.
Datum length ISO Ld (mm)
Inside length Li (mm)
290∗ 315∗ 375∗ 400∗ 425∗
Z 381/2 Z 39 Z 40 Z 401/2 Z 41
997 1022 1038 1052 1063
975 1000 1016 1030 1041
Z 68 Z 69 Z 70 Z 71 Z 73
1747 1772 1797 1822 1872
1725 1750 1775 1800 1850
472∗ 497∗ 502∗ 522∗ 537∗
450∗ 475∗ 480∗ 500∗ 515∗
Z 411/2 Z 42 Z 43 Z 431/4 Z 44
1072 1082 1102 1122 1142
1050 1060 1080 1100 1120
Z 75 Z 78 Z 79 Z 831/2 Z 88
1922 1997 2022 2142 2262
1900 1975 2000 2120 2240
Z 201/2 Z 21 Z 211/4 Z 22 Z 23
547∗ 552∗ 562∗ 582∗ 597
525∗ 530∗ 540∗ 560∗ 575
Z 45 Z 46 Z 461/2 Z 47 Z 48
1172 1187 1202 1216 1237
1150 1165 1180 1194 1215
Z 93 Z 98
2382 2522
2360 2500
Z 24 Z 25 Z 26 Z 27 Z 271/2
622 652 672 692 722
600 630 650 670 700
Z 481/2 Z 49 Z 50 Z 51 Z 52
1247 1272 1292 1317 1342
1225 1250 1270 1295 1320
895 920 970 1020 1040
875 900 950 1000 1020
Z 28 Z 281/2 Z 29 Z 291/2 Z 30
732 747 752 772 787
710 725 730 750 765
Z 53 Z 54 Z 55 Z 56 Z 57
1368 1393 1422 1444 1472
1346 1371 1400 1422 1450
1070 1095 1140 1220 1270
1050 1075 1120 1200 1250
Z 31 Z 311/2 Z 32 Z 33 Z 331/2
797 822 842 847 872
775 800 820 825 850
Z 58 Z 59 Z 60 Z 61 Z 62
1497 1522 1546 1572 1597
1475 1500 1524 1550 1575
Z 34 Z 35 Z 36 Z 37 Z 38
887 897 922 947 972
865 875 900 925 950
Z 63 Z 64 Z 65 Z 66 Z 67
1622 1648 1673 1697 1722
1600 1626 1651 1675 1700
Weight: ≈ 0.042 kg/m
Maximum production length: 4 500 mm Li Minimum order quantity: Over 1800 mm = 20 belts for non standard lengths 60 belts for certain special constructions Weight: ≈ 0.064 kg/m
∗ Raw edge, moulded cogged V-belts
Lengths in bold print are in the S=C PLUS range.
Inside length Li (mm)
Other sizes on request
23
Technical Manual V-Belts
Standard Range optibelt VB Classical V-Belts to BS 3790/DIN 2215/ ISO 4184
A/13
Section A/13 Belt no.
Datum length Inside length ISO Li (mm) Ld (mm)
Belt no.
Datum length Inside length ISO Li (mm) Ld (mm)
Belt no.
Datum length Inside length ISO Li (mm) Ld (mm)
Belt no.
Datum length Inside length ISO Li (mm) Ld (mm)
A 16 A 18 A 19 A 20 A 21
437 487 510 538 565
407 457 480 508 535
A 41 A 411/2 A 42 A 421/2 A 43
1071 1080 1090 1105 1130
1041 1050 1060 1075 1100
A A A A A
69 70 71 72 73
1780 1805 1830 1855 1884
1750 1775 1800 1825 1854
A 105 A 107 A 108 A 110 A 112
2697 2755 2773 2830 2875
2667 2725 2743 2800 2845
A 22 A 23 A 231/2 A 24 A 25
590 605 630 640 660
560 575 600 610 630
A 431/2 A 44 A 45 A 451/2 A 46
1135 1150 1173 1180 1198
1105 1120 1143 1150 1168
A A A A A
74 75 76 77 78
1910 1930 1960 1986 2010
1880 1900 1930 1956 1980
A 114 A 116 A 118 A 120 A 124
2926 2976 3030 3078 3180
2896 2946 3000 3048 3150
A 26 A 261/2 A 27 A 271/2 A 28
680 700 716 730 740
650 670 686 700 710
A 461/2 A 47 A 471/2 A 48 A 481/2
1210 1230 1245 1250 1255
1180 1200 1215 1220 1225
A A A A A
79 80 81 82 83
2030 2062 2090 2113 2130
2000 2032 2060 2083 2100
A 128 A 132 A 136 A 140 A 144
3280 3380 3484 3580 3688
3250 3350 3454 3550 3658
A 29 A 291/2 A 30 A 31 A 311/2
760 780 797 805 830
730 750 767 775 800
A 49 A 50 A 51 A 52 A 53
1280 1300 1330 1350 1380
1250 1270 1300 1320 1350
A A A A A
831/2 84 841/2 85 86
2150 2164 2180 2190 2230
2120 2134 2150 2160 2200
A 148 A 158 A 167 A 187 A 197
3780 4030 4280 4780 5030
3750 4000 4250 4750 5000
A 32 A 321/2 A 33 A 34 A 341/2
843 855 871 880 905
813 825 841 850 875
A 54 A 55 A 56 A 57 A 58
1405 1430 1452 1480 1505
1375 1400 1422 1450 1475
A A A A A
87 88 89 90 91
2240 2270 2291 2316 2341
2210 2240 2261 2286 2311
A 35 A 351/2 A 36 A 37 A 371/2
919 930 944 955 980
889 900 914 925 950
A 59 A 60 A 61 A 62 A 63
1530 1555 1580 1605 1630
1500 1525 1550 1575 1600
A A A A A
92 93 94 95 96
2367 2390 2418 2443 2468
2337 2360 2388 2413 2438
A 38 A 381/2 A 39 A 40 A 401/2
995 1005 1030 1046 1060
965 975 1000 1016 1030
A 64 A 65 A 66 A 67 A 68
1655 1680 1706 1730 1755
1625 1650 1676 1700 1725
A 97 A 98 A 100 A 102 A 104
2494 2530 2570 2621 2680
2464 2500 2540 2591 2650
Maximum production length: 10 000 mm Li Minimum order quantity: Over1800 mm = 31 belts for non standard lengths 93 belts for certain special constructions Weight: ≈ 0.109 kg/m Datum length Ld
24
pitch length Lw/Lp
Other sizes on request Lengths in bold print are in the S=C PLUS range.
Technical Manual V-Belts
Standard Range optibelt VB Classical V-Belts to BS 3790/DIN 2215/ ISO 4184
B/17
Section B/17 Belt no.
B 23 B 24 B 25 B 26 B 261/2 B 27 B 28 B 29 B 30 B 31 B 32 B 321/2 B 33 B 34 B 341/2 B 35 B 36 B 37 B 371/2 B 38 B 381/2 B 39 B 40 B 401/2 B 41 B 411/2 B 42 B 421/2 B 43 B 431/4 B 44 B 45 B 451/2 B 46 B 461/2 B 47 B 48 B 481/2 B 49 B 50
Datum length Inside length ISO Li (mm) Ld (mm)
610 655 670 690 710 726 750 765 790 815 840 865 876 890 915 929 940 965 990 1005 1015 1040 1056 1070 1080 1090 1100 1115 1130 1140 1160 1190 1203 1215 1220 1240 1255 1265 1290 1315
Belt no.
B 51 B 52 B 521/2 B 53 B 531/2 B 54 B 55 B 56 B 57 B 58 B 59 B 60 B 61 B 62 B 63 B 64 B 65 B 66 B 67 B 68 B 69 B 691/2 B 70 B 71 B 72 B 73 B 74 B 75 B 76 B 77 B 78 B 79 B 80 B 81 B 82 B 83 B 831/2 B 84 B 85 B 86
570 615 630 650 670 686 710 725 750 775 800 825 836 850 875 889 900 925 950 965 975 1000 1016 1030 1040 1050 1060 1075 1090 1100 1120 1150 1163 1175 1180 1200 1215 1225 1250 1275
Datum length Inside length ISO Li (mm) Ld (mm)
1340 1360 1375 1390 1400 1412 1440 1462 1490 1513 1540 1565 1590 1615 1640 1665 1690 1716 1740 1765 1790 1801 1815 1840 1869 1890 1920 1940 1970 1990 2021 2040 2072 2100 2123 2140 2160 2174 2200 2240
1300 1320 1335 1350 1360 1372 1400 1422 1450 1473 1500 1525 1550 1575 1600 1625 1650 1676 1700 1725 1750 1761 1775 1800 1829 1850 1880 1900 1930 1950 1981 2000 2032 2060 2083 2100 2120 2134 2160 2200
Belt no.
B 87 B 88 B 89 B 90 B 91 B 92 B 93 B 94 B 941/2 B 95 B 96 B 961/2 B 97 B 98 B 99 B 100 B 101 B 102 B 103 B 104 B 105 B 106 B 107 B 108 B 110 B 112 B 114 B 115 B 116 B 118 B 120 B 122 B 124 B 126 B 128 B 130 B 132 B 134 B 136 B 138
Datum length Inside length ISO Li (mm) Ld (mm)
2250 2280 2301 2326 2340 2377 2400 2428 2440 2453 2478 2490 2505 2540 2555 2580 2605 2640 2656 2690 2707 2740 2758 2790 2840 2885 2940 2961 2990 3040 3088 3139 3190 3240 3290 3342 3390 3444 3490 3545
2210 2240 2261 2286 2300 2337 2360 2388 2400 2413 2438 2450 2465 2500 2515 2540 2565 2600 2616 2650 2667 2700 2718 2750 2800 2845 2900 2921 2950 3000 3048 3099 3150 3200 3250 3302 3350 3404 3450 3505
Belt no.
B 140 B 142 B 144 B 146 B 148 B 150 B 151 B 152 B 154 B 155 B 156 B 158 B 160 B 162 B 165 B 167 B 173 B 175 B 177 B 180 B 187 B 195 B 197 B 208 B 210 B 220 B 236 B 240 B 248 B 264 B 276 B 280
Datum length Inside length ISO Li (mm) Ld (mm)
3590 3640 3698 3740 3790 3850 3890 3901 3952 3990 4002 4040 4104 4155 4240 4290 4434 4490 4540 4612 4790 4993 5040 5340 5374 5640 6040 6136 6340 6740 7040 7140
3550 3600 3658 3700 3750 3810 3850 3861 3912 3950 3962 4000 4064 4115 4200 4250 4394 4450 4500 4572 4750 4953 5000 5300 5334 5600 6000 6096 6300 6700 7000 7100
Maximum production length: 15 500 mm Li Minimum order quantity: Over 1800 mm = 21 belts for non standard lengths 63 belts for certain special constructions Weight: ≈ 0.196 kg/m Datum length Ld
pitch length Lw/Lp
Other sizes on request
Lengths in bold print are in the S=C PLUS range.
25
Technical Manual V-Belts
Standard Range optibelt VB Classical V-Belts to BS 3790/DIN 2215/ ISO 4184
20
C/22
25
Section 20
Section C/22
Section 25
Datum length ISO Ld (mm)
Inside length Li (mm)
Belt no.
Datum length ISO Ld (mm)
Inside length Li (mm)
Belt no.
Datum length ISO Ld (mm)
Inside length Li (mm)
Datum length ISO Ld (mm)
Inside length Li (mm)
950 1050 1170 1230 1300 1370 1450 1550 1650 1750 1850 1950 2050 2170 2290 2410 2550 2700 2850 3050 3200 3400 3600 3800 4050 4550 5050 6050
900 1000 1120 1180 1250 1320 1400 1500 1600 1700 1800 1900 2000 2120 2240 2360 2500 2650 2800 3000 3150 3350 3550 3750 4000 4500 5000 6000
C 43 C 47 C 48 C 49 C 51 C 52 C 53 C 54 C 55 C 56 C 57 C 58 C 59 C 60 C 61 C 62 C 63 C 65 C 66 C 67 C 68 C 69 C 70 C 71 C 72 C 73 C 74 C 75 C 76 C 77 C 78 C 79 C 80 C 81 C 82 C 83 C 831/2 C 84 C 85 C 86 C 87 C 88 C 89 C 90 C 92 C 93 C 94 C 95 C 96 C 961/2 C 97 C 98 C 99 C 100 C 101
1148 1258 1273 1308 1353 1378 1408 1433 1458 1483 1508 1533 1558 1582 1608 1632 1658 1708 1734 1758 1785 1808 1836 1858 1887 1912 1938 1958 1988 2014 2039 2058 2090 2118 2141 2166 2178 2192 2217 2242 2268 2298 2319 2344 2395 2418 2446 2471 2496 2508 2522 2558 2583 2598 2618
1090 1200 1215 1250 1295 1320 1350 1375 1450 1425 1450 1475 1500 1524 1550 1574 1600 1650 1676 1700 1727 1750 1778 1800 1829 1854 1880 1900 1930 1956 1981 2000 2032 2060 2083 2108 2120 2134 2159 2184 2210 2240 2261 2286 2337 2360 2388 2413 2438 2450 2464 2500 2525 2540 2560
C 102 C 104 C 105 C 106 C 108 C 110 C 112 C 114 C 115 C 116 C 117 C 118 C 120 C 122 C 124 C 126 C 128 C 130 C 132 C 134 C 136 C 138 C 140 C 142 C 144 C 146 C 148 C 150 C 158 C 162 C 166 C 167 C 168 C 170 C 173 C 175 C 177 C 180 C 187 C 190 C 195 C 197 C 208 C 210 C 220 C 225 C 236 C 240 C 248 C 264 C 270 C 280 C 295 C 300 C 315
2649 2700 2725 2750 2808 2858 2903 2954 2979 3008 3023 3058 3106 3157 3208 3258 3308 3360 3408 3462 3508 3563 3608 3665 3716 3758 3808 3868 4058 4158 4274 4308 4325 4376 4452 4503 4558 4630 4808 4884 5011 5058 5358 5392 5658 5773 6058 6154 6358 6758 6916 7158 7558 7678 8058
2591 2642 2667 2692 2750 2800 2845 2896 2921 2950 2965 3000 3048 3099 3150 3200 3250 3302 3350 3404 3450 3505 3550 3607 3658 3700 3750 3810 4000 4100 4216 4250 4267 4318 4394 4445 4500 4572 4750 4826 4953 5000 5300 5334 5600 5715 6000 6096 6300 6700 6858 7100 7500 7620 8000
1460 1560 1660 1760 1860 1960 2060 2180 2300 2420 2560 2710 2760 2860 3060 3210 3410 3610 3810 4060 4310 4560 4810 5060 5360 5660 6060 6360 6760 7160 7560 8060 8560 9060
1400 1500 1600 1700 1800 1900 2000 2120 2240 2360 2500 2650 2700 2800 3000 3150 3350 3550 3750 4000 4250 4500 4750 5000 5300 5600 6000 6300 6700 7100 7500 8000 8500 9000
Maximum production length: 10 000 mm Li Minimum order quantity: Over 1800 mm = 18 belts for non standard lengths 54 belts for certain special constructions Weight: ≈ 0.266 kg/m
Datum length Ld
26
Maximum standard production length: 18 000 mm Li Over 18 000 to 19 000 mm on request Minimum order quantity: Over 1800 mm = 16 belts for non standard lengths 48 belts for certain special constructions Weight: ≈ 0.324 kg/m
pitch length Lw/Lp
Maximum standard production length: 18 000 mm Li Over 18 000 to 19 000 mm on request Minimum order quantity: Over 1800 mm = 14 belts for non standard lengths 42 belts for certain special constructions Weight: ≈ 0.420 kg/m
Other sizes on request Lengths in bold print are in the S=C PLUS range.
Technical Manual V-Belts
Standard Range optibelt VB Classical V-Belts to BS 3790/DIN 2215/ISO 4184
D/32
E/40
Section D/32
Section E/40
Belt no.
Datum length ISO Ld (mm)
Inside length Li
Belt no.
Datum length ISO Ld (mm)
Inside length Li
D 79 D 98 D 104 D 110 D 118 D 120 D 124 D 128 D 132 D 135 D 136 D 140 D 144 D 148 D 154 D 158 D 162 D 167 D 173 D 177 D 180 D 187 D 195 D 197 D 208 D 210 D 220 D 225 D 236 D 240 D 248 D 264 D 270 D 280 D 295 D 300 D 315 D 330 D 335 D 354 D 374 D 394 D 441
2075 2575 2725 2875 3075 3123 3225 3326 3425 3500 3529 3625 3733 3825 4000 4075 4190 4325 4469 4575 4647 4825 5028 5075 5375 5409 5675 5790 6075 6171 6375 6775 6933 7175 7575 7695 8075 8457 8575 9075 9575 10075 11275
2000 2500 2650 2800 3000 3048 3150 3251 3350 3425 3454 3550 3658 3750 3925 4000 4115 4250 4394 4500 4572 4750 4953 5000 5300 5334 5600 5715 6000 6096 6300 6700 6858 7100 7500 7620 8000 8382 8500 9000 9500 10000 11200
E 118 E 158 E 197 E 220 E 236 E 248 E 280 E 295 E 315 E 354 E 394 E 441 E 492
3080 4080 5080 5680 6080 6380 7180 7580 8080 9080 10080 11280 12580
3000 4000 5000 5600 6000 6300 7100 7500 8000 9000 10000 11200 12500
Maximum standard production length: 18 000 mm Li Over 18 000 to 19 000 mm on request Minimum order quantity: Over 2000 mm = 11 belts for non standard lengths 33 belts for certain special constructions
Maximum production length: 19 000 mm Li Minimum order quantity for all sizes: 7 belts 21 belts for certain special constructions Weight: ≈ 0.958 kg/m
Weight: ≈ 0.668 kg/m Datum length Ld
pitch length Lw/Lp
Other sizes on request
Lengths in bold print are in the S=C PLUS range.
27
Technical Manual V-Belts
Standard Range optibelt Super X-POWER M=S Wedge Belts – Raw Edge, Moulded Cogged – BS 3790/DIN 7753 Part 1 /ISO 4184 und RMA/MPTA
XPZ
XPA
XPB
XPC
Section XPZ
Section XPA Section XPB Section XPC
Datum length ISO Ld (mm)
Datum length ISO Ld (mm)
Datum length ISO Datum length ISO Ld (mm) Ld (mm)
3VX/9NX
Section 3VX/9NX Designation
Designation La (outside length mm)
5VX/15NX
Section 5VX/15NX Designation
Designation La (outside length mm)
587 612 630 637 662
1187 1202 1212 1237 1250
2690 2800 2840 3000 3150
732 757 782 800 807
1500 1507 1532 1557 1582
1250 1320 1400 1500 1600
2000 2120 2240 2360 2500
3VX 3VX 3VX 3VX 3VX
250 265 280 300 315
9NX 9NX 9NX 9NX 9NX
635 673 711 762 800
5VX 5VX 5VX 5VX 5VX
500 530 560 600 630
15NX 1270 15NX 1346 15NX 1422 15NX 1524 15NX 1600
670 687 710 730 737
1262 1287 1312 1320 1337
3350 3550
832 850 857 882 900
1600 1607 1632 1700 1757
1700 1800 1900 2000 2120
2650 2800 3000 3150 3350
3VX 3VX 3VX 3VX 3VX
335 355 375 400 425
9NX 851 9NX 902 9NX 952 9NX 1016 9NX 1079
5VX 5VX 5VX 5VX 5VX
670 710 750 800 850
15NX 1702 15NX 1803 15NX 1905 15NX 2032 15NX 2159
750 762 772 787 800
1362 1387 1400 1412 1437
907 932 950 957 982
1800 1882 1900 2000 2120
2240 2360 2500 2650 2800
3550
3VX 3VX 3VX 3VX 3VX
450 475 500 530 560
9NX 1143 9NX 1206 9NX 1270 9NX 1346 9NX 1422
5VX 900 5VX 950 5VX 1000 5VX 1060 5VX 1120
15NX 2286 15NX 2413 15NX 2540 15NX 2692 15NX 2845
812 825 837 850 862
1462 1487 1500 1512 1537
1000 1007 1030 1060 1082
2240 2360 2500 2650 2800
3000 3150 3350 3550
3VX 3VX 3VX 3VX 3VX
600 630 670 710 750
9NX 1524 9NX 1600 9NX 1702 9NX 1803 9NX 1905
5VX 1180 5VX 1250 5VX 1320 5VX 1400
15NX 2997 15NX 3175 15NX 3353 15NX 3556
875 887 900 912 925
1562 1587 1600 1612 1662
1107 1120 1132 1157 1180
3000 3150 3350 3550
3VX 800 3VX 850 3VX 900 3VX 950 3VX 1000
9NX 2032 9NX 2159 9NX 2286 9NX 2413 9NX 2540
937 950 962 987 1000
1700 1750 1762 1800 1850
1207 1232 1250 1257 1272
3VX 1060 3VX 1120 3VX 1180 3VX 1250 3VX 1320
9NX 2692 9NX 2845 9NX 2997 9NX 3175 9NX 3353
1012 1037 1060 1077 1087
1900 1950 2000 2120 2150
1282 1307 1320 1332 1357
3VX 1400
9NX 3556
1112 1120 1137 1162 1180
2240 2360 2500 2540 2650
1382 1400 1432 1457 1482
Weight: ≈ 0.065 kg/m Datum length Ld
28
Weight: ≈ 0.096 kg/m pitch length Lw/Lp
Weight: ≈ 0.183 kg/m
Other sizes on request
Weight: ≈ 0.340 kg/m
Weight: ≈ 0.065 kg/m
Weight: ≈ 0.183 kg/m
Technical Manual V-Belts
Standard Range optibelt SUPER TX M=S V-Belts – Raw Edge, Moulded Cogged – to BS 3790/DIN 2215/ISO 4184
ZX/X10
Section ZX/X10 Datum length ISO Ld (mm)
Belt no.
ZX 23 ZX 24 ZX 25 ZX 26 ZX 27 ZX 28 ZX 29 ZX 291/2 ZX 311/2 ZX 32 ZX 33 ZX 331/2 ZX 35 ZX 36 ZX 37 ZX 38 ZX 40 ZX 42 ZX 461/2 ZX 52 ZX 55 ZX 59
597 622 652 672 692 732 752 772 822 842 847 872 897 922 947 972 1038* 1082* 1202* 1342* 1422* 1522*
Weight: ≈ 0.062 kg/m Datum length Ld
pitch length Lw/Lp
AX/X13
BX/X17
Section AX/X13 Belt no.
AX 23 AX 231/2 AX 24 AX 25 AX 261/2 AX 27 AX 28 AX 29 AX 30 AX 31 AX 32 AX 33 AX 34 AX 35 AX 351/2 AX 36 AX 37 AX 371/2 AX 38 AX 39 AX 40 AX 411/2 AX 42 AX 43 AX 44 AX 451/2 AX 46 AX 47 AX 48 AX 49 AX 50 AX 51 AX 52 AX 53 AX 54 AX 55 AX 56 AX 57 AX 58 AX 59 AX 62 AX 63 AX 67 AX 70 AX 71 AX 75 AX 79 AX 88 AX 93 AX 98 AX 104 AX 110 AX 118 AX 124 AX 132
Datum length ISO Ld (mm)
605 630 640 660 700 716 740 760 797 805 843 871 880 919 930 944 955 980 995 1030 1046 1080 1090 1130 1150 1180 1198 1230 1250 1280 1300 1330 1350 1380 1405 1430 1452 1480 1505 1530 1605 1630 1730 1805 1830 1930 2030 2270 2390 2530 2680* 2830* 3030* 3180* 3380*
Weight: ≈ 0.099 kg/m Other sizes on request
CX/X22
Section BX/X17 Belt no.
BX 23 BX 25 BX 26 BX 28 BX 29 BX 30 BX 31 BX 32 BX 33 BX 34 BX 341/2 BX 35 BX 36 BX 37 BX 38 BX 39 BX 40 BX 41 BX 42 BX 43 BX 44 BX 45 BX 451/2 BX 46 BX 461/2 BX 47 BX 48 BX 49 BX 50 BX 51 BX 52 BX 53 BX 54 BX 55 BX 57 BX 58 BX 59 BX 61 BX 62 BX 63 BX 67 BX 69 BX 71 BX 73 BX 75 BX 79 BX 88 BX 93 BX 98 BX 103 BX 104 BX 110 BX 118 BX 124 BX 132 Weight: ≈ 0.165 kg/m
Datum length ISO Ld (mm)
610 670 690 750 765 790 815 840 876 890 915 929 940 965 1005 1040 1056 1080 1100 1130 1160 1190 1203 1215 1220 1240 1255 1290 1315 1340 1360 1390 1412 1440 1490 1513 1540 1590 1615 1640 1740 1790 1840 1890 1940 2040 2280 2400 2540 2656* 2690* 2840* 3040* 3190* 3390*
Section CX/X22 Belt no.
Datum length ISO Ld (mm)
CX 39 CX 43 CX 49 CX 52 CX 55 CX 59 CX 62 CX 67 CX 68 CX 71 CX 75 CX 79 CX 81 CX 85 CX 88 CX 90 CX 93 CX 96 CX 98 CX 110 CX 118 CX 124 CX 132
1058* 1148* 1308* 1378* 1458* 1558* 1632* 1758* 1785* 1858* 1958* 2058* 2118* 2217* 2298* 2344* 2418* 2496* 2558* 2858* 3058* 3208* 3408*
Weight: ≈ 0.276 kg/m
*Non stock items
29
Technical Manual V-Belts
Standard Range optibelt KB Kraftbands with Wedge Belts to BS/DIN/ISO
Section
Section SPZ
SPZ
SPA
SPB
SPC
bo ≈ (mm)
9.7
12.7
16.5
22.0
h ≈ (mm)
10.5
12.5
15.6
22.6
Section SPA
Section SPB
Section SPC
Datum length ISO Ld (mm)
Datum length ISO Ld (mm)
Datum length ISO Ld (mm)
Datum length ISO Ld (mm)
1250 1400 1500 1600 1700
1250 1400 1500 1600 1700
2000 2120 2240 2360 2500
3000 3150 3350 3550 3750
1800 1900 2000 2120 2240
1800 1900 2000 2120 2240
2650 2800 3000 3150 3350
4000 4250 4500 4750 5000
2360 2500 2650 2800 3000
2360 2500 2650 2800 3000
3550 3750 4000 4250 4500
5300 5600 6000 6300 6700
3150 3350 3550
3150 3350 3550 3750 4000
4750 5000 5300 5600 6000
7100 7500 8000 8500 9000
4250 4500
6300 6700 7100 7500 8000
9500 10000 10600 11200 11800 12500
Maximum production length: 4500 mm Ld Non standard lengths from 1800 mm Ld Minimum order quantity for special lengths: 8 belts with 5 ribs or 10 belts with 4 ribs or 14 belts with 3 ribs or 21 belts with 2 ribs or a multiple thereof Weight: ≈ 0.120 kg/m per rib Minimum order quantities for Aramid belts on request
30
Maximum production length: 4500 mm Ld Non standard lengths from 1800 mm Ld Minimum order quantity for all sizes: 6 belts with 5 ribs or 8 belts with 4 ribs or 11 belts with 3 ribs or 16 belts with 2 ribs or a multiple thereof Weight: ≈ 0.166 kg/m per rib Minimum order quantities for Aramid belts on request
Maximum production length: 10 000 mm Ld Non standard lengths from 2000 mm Ld Minimum order quantity for special lengths: 4 belts with 5 ribs or 5 belts with 4 ribs or 7 belts with 3 ribs or 11 belts with 2 ribs or a multiple thereof Weight: ≈ 0.261 kg/m per rib Minimum order quantities for Aramid belts on request
Datum length Ld
Maximum production length: 12 500 mm Ld Non standard lengths from 3000 mm Ld Minimum order quantity for all sizes: 3 belts with 5 ribs or 4 belts with 4 ribs or 5 belts with 3 ribs or 8 belts with 2 ribs or a multiple thereof Weight: ≈ 0.555 kg/m per rib Minimum order quantities for Aramid belts on request
pitch length Lw/Lp
Other sizes on request
Technical Manual V-Belts
Standard Range optibelt KB Kraftbands with Wedge Belts to USA Standard RMA/MPTA
Section
Section 3V/9J Designation
Designation (outside length mm) La
Section 5V/15J Designation
3V/9J
5V/15J 8V/25J
bo ≈ (mm)
9.0
15.0
25.0
h ≈ (mm)
9.9
15.1
25.5
Section 8V/25J
Designation (outside length mm) La
Designation
Designation (outside length mm) La
3V 3V 3V 3V 3V
500 530 560 600 630
9J 1270 9J 1346 9J 1422 9J 1524 9J 1600
5V 5V 5V 5V 5V
560 600 630 670 710
15J 1422 15J 1524 15J 1600 15J 1702 15J 1803
8V 1000 8V 1060 8V 1120 8V 1180 8V 1250
25J 25J 25J 25J 25J
2540 2692 2845 2997 3175
3V 3V 3V 3V 3V
670 710 750 800 850
9J 1702 9J 1803 9J 1905 9J 2032 9J 2159
5V 5V 5V 5V 5V
750 800 850 900 950
15J 1905 15J 2032 15J 2159 15J 2286 15J 2413
8V 1320 8V 1400 8V 1500 8V 1600 8V 1700
25J 25J 25J 25J 25J
3353 3556 3810 4064 4318
3V 900 3V 950 3V 1000 3V 1060 3V 1120
9J 2286 9J 2413 9J 2540 9J 2692 9J 2845
5V 1000 5V 1060 5V 1120 5V 1180 5V 1250
15J 2540 15J 2692 15J 2845 15J 2997 15J 3175
8V 1800 8V 1900 8V 2000 8V 2120 8V 2240
25J 25J 25J 25J 25J
4572 4826 5080 5385 5690
3V 1180 3V 1250 3V 1320 3V 1400
9J 2997 9J 3175 9J 3353 9J 3556
5V 1320 5V 1400 5V 1500 5V 1600 5V 1700
15J 3353 15J 3556 15J 3810 15J 4064 15J 4318
8V 2360 8V 2500 8V 2650 8V 2800 8V 3000
25J 25J 25J 25J 25J
5994 6350 6731 7112 7620
5V 1800 5V 1900 5V 2000 5V 2120 5V 2240
15J 4572 15J 4826 15J 5080 15J 5385 15J 5690
8V 3150 8V 3350 8V 3550 8V 3750 8V 4000
25J 8001 25J 8509 25J 9017 25J 9525 25J 10160
5V 2360 5V 2500 5V 2650 5V 2800 5V 3000
15J 5994 15J 6350 15J 6731 15J 7112 15J 7620
8V 4250 8V 4500 8V 4750
25J 10795 25J 11430 25J 12065
5V 3150 5V 3350 5V 3550
15J 8001 15J 8509 15J 9017
Maximum production length: 4250 mm La Non standard lengths from1800 mm La Minimum order quantity for special lengths: 9 belts with 5 ribs or 12 belts with 4 ribs or 16 belts with 3 ribs or 24 belts with 2 ribs or a multiple thereof Weight: ≈ 0.102 kg/m per rib Minimum order quantities for Aramid belts on request
Other sizes on request
Maximum production length: 10 000 mm La Non standard lengths from 1800 mm La Minimum order quantity for special lengths: 6 belts with 5 ribs or 7 belts with 4 ribs or 10 belts with 3 ribs or 15 belts with 2 ribs or a multiple thereof Weight: ≈ 0.252 kg/m per rib Minimum order quantities for Aramid belts on request
Maximum standard length: 15 000 mm La Over 15 000 to 18 000 mm on request Non standard lengths from 2540 mm La Minimum order quantity for all sizes: 2 belts with 5 ribs or 2 belts with 4 ribs or 3 belts with 3 ribs or a multiple thereof Weight: ≈ 0.693 kg/m per rib Minimum order quantities for Aramid belts on request
31
Technical Manual V-Belts
Standard Range optibelt KBX Kraftbands – Raw Edge, Moulded Cogged – to USA Standard RMA/MPTA
Section
Section 3VX/9JX
5VX/15JX
bo ≈ (mm)
9.0
15.0
h ≈ (mm)
9.9
15.1
Section 5VX/15JX
Designation La (outside length mm)
Designation
3VX/9JX
Designation
Designation La (outside length mm)
3VX 3VX 3VX 3VX 3VX
500 530 560 600 630
9JX 1270 9JX 1346 9JX 1422 9JX 1524 9JX 1600
5VX 5VX 5VX 5VX 5VX
500 530 560 600 630
15JX 1270 15JX 1346 15JX 1422 15JX 1524 15JX 1600
3VX 3VX 3VX 3VX 3VX
670 710 750 800 850
9JX 1702 9JX 1803 9JX 1905 9JX 2032 9JX 2159
5VX 5VX 5VX 5VX 5VX
670 710 750 800 850
15JX 1702 15JX 1803 15JX 1905 15JX 2032 15JX 2159
3VX 900 3VX 950 3VX 1000 3VX 1060 3VX 1120
9JX 2286 9JX 2413 9JX 2540 9JX 2692 9JX 2845
5VX 900 5VX 950 5VX 1000 5VX 1060 5VX 1120
15JX 2286 15JX 2413 15JX 2540 15JX 2692 15JX 2845
3VX 1180 3VX 1250 3VX 1320 3VX 1400
9JX 2997 9JX 3175 9JX 3353 9JX 3556
5VX 1180 5VX 1250 5VX 1320 5VX 1400
15JX 2997 15JX 3175 15JX 3353 15JX 3556
Minimum order quantity on request
Kraftbands with the sections XPZ, XPA, XPB, AX/HAX and BX/HBX can be supplied on request. Weight: ≈ 0.117 kg/m per rib Other sizes on request
32
Weight: ≈ 0.241 kg/m per rib
Technical Manual V-Belts
Standard Range optibelt KB Kraftbands with Classical V-Belts to BS 3790/DIN/ISO, ASAE
Section
Section A/HA (Section A) Inside length Belt no. Li (mm)
(Section HA) Outside length La (mm)
B/HB
C/HC
D/HD
bo ≈ (mm)
13.0
17.0
22.0
32.0
h ≈ (mm)
9.9
13.0
16.2
22.4
Section B/HB (Section B) Inside length Belt no. Li (mm)
(Section HB) Outside length La (mm)
47 51 56 57 59
1200 1300 1422 1450 1500
1236 1336 1458 1486 1536
47 51 55 59 61
1200 1300 1400 1500 1550
1262 1362 1462 1562 1612
64 67 71 75 79
1625 1700 1800 1900 2000
1661 1736 1836 1936 2036
63 64 67 71 73
1600 1625 1700 1800 1850
1662 1687 1762 1862 1912
88 98 100 104 112
2240 2500 2540 2650 2845
2276 2536 2576 2686 2881
75 79 83 88 91
1900 2000 2100 2240 2300
120 128 144 158 167
3048 3250 3658 4000 4250
3084 3286 3694 4036 4286
941/2 98 102 106 112
187
4750
4786
Maximum production length: 8000 mm Li Non standard lengths from 1800 mm Minimum order quantity for non listed sizes: 1200 to 2000 mm 6 belts with 5 ribs or 8 belts with 4 ribs or 10 belts with 3 ribs or 16 belts with 2 ribs or a multiple thereof 2001 to 8000 mm 6 belts with 5 ribs or 8 belts with 4 ribs or 11 belts with 3 ribs or 16 belts with 2 ribs or a multiple thereof Weight: ≈ 0.163 kg/m per rib Minimum order quantities for Aramid belts on request
A/HA
Section C/HC
(Section B) Inside length Belt no. Li (mm)
(Section HB) Outside length La (mm)
158 167 177
4000 4250 4500
4062 4312 4562
187 197 208 220
4750 5000 5300 5600
4812 5062 5362 5662
(Section C) Inside length Belt no. Li (mm)
(Section HC) Outside length La (mm)
Section D/HD (Section D) Inside length Belt no. Li (mm)
(Section HD) Outside length La (mm)
90 98 108 120 128
2286 2500 2750 3048 3250
2361 2575 2825 3123 3325
98 110 120 128 144
2500 2800 3048 3250 3658
2611 2911 3159 3361 3769
140 146 151 167 177
3550 3700 3850 4250 4500
3625 3775 3925 4325 4575
158 162 173 180 195
4000 4115 4394 4572 4953
4111 4226 4505 4683 5064
1962 2062 2162 2302 2362
187 197 208 220 236
4750 5000 5300 5600 6000
4825 5075 5375 5675 6075
210 225 240 255 270
5334 5715 6096 6477 6858
5445 5826 6207 6588 6969
2400 2500 2600 2700 2845
2462 2562 2662 2762 2907
248
6300
6375
285 300 315 330 345
7239 7620 8000 8382 8763
7350 7731 8111 8493 8874
118 120 128 132 140
3000 3048 3250 3350 3550
3062 3110 3312 3412 3612
360 390 420 450 480
9144 9906 10668 11430 12200
9255 10017 10779 11541 12311
146 148
3700 3750
3762 3812
540 600 660 700
13716 15240 16764 17780
13827 15351 16875 17891
Maximum production length: 10 000 mm Li Non standard lengths from 1800 mm Minimum order quantity for non listed sizes: 5 belts with 5 ribs or 6 belts with 4 ribs or 9 belts with 3 ribs or 13 belts with 2 ribs or a multiple thereof Weight: ≈ 0.266 kg/m per rib Minimum order quantities for Aramid belts on request
Max. production length: 12 000 mm Li Non standard lengths from 2286 mm Minimum order quantity for special lengths: 2286 to 10 000 mm 4 belts with 5 ribs or 5 belts with 4 ribs or 6 belts with 3 ribs or 10 belts with 2 ribs or a multiple thereof 10 001 to 12 000 mm 3 belts with 5 ribs or 4 belts with 4 ribs or 5 belts with 3 ribs or 8 belts with 2 ribs or a multiple thereof Weight: ≈ 0.447 kg/m per rib Minimum order quantities for Aramid belts on request.
Max. production length: 16 000 mm Li Non standard lengths from 2500 mm Minimum order quantities for all sizes: 2 belts with 5 ribs or 2 belts with 4 ribs or 3 belts with 3 ribs or 5 belts with 2 ribs or a multiple thereof Weight: ≈ 0.798 kg/m per rib Minimum order quantities for Aramid belts on request.
Other sizes on request
33
Technical Manual V-Belts
Standard Range optibelt RED POWER II Kraftbands with High Performance Wedge Belts BS/DIN/ISO
34
Section
SPB
SPC
bo ≈ (mm)
16.5
22.0
h ≈ (mm)
15.6
22.6
Section SPB
Section SPC
Datum length ISO Ld (mm)
Datum length ISO Ld (mm)
2000 2120 2240 2360 2500
3000 3150 3350 3550 3750
2650 2800 3000 3150 3350
4000 4250 4500 4750 5000
3550 3750 4000 4250 4500
5300 5600 6000 6300 6700
4750 5000 5300 5600 6000
7100 7500 8000 8500 9000
6300 6700 7100 7500 8000
9500 10000
Maximum production length: 8000 mm Ld
Maximum production length: 10000 mm Ld
Non standard lengths on request
Non standard lengths on request
Weight: ≈ 0.261 kg/m per rib
Weight: ≈ 0.555 kg/m per rib
Datum length Ld
pitch length Lw/Lp
Other sizes on request
Technical Manual V-Belts
Standard Range optibelt RED POWER II Kraftbands with High Performance Wedge Belts USA Standard RMA/MPTA
Section
Section 3V/9J Designation
Designation (outside length mm) La
Section 5V/15J Designation
3V/9J
5V/15J 8V/25J
bo ≈ (mm)
9.0
15.0
25.0
h ≈ (mm)
9.9
15.1
25.5
Section 8V/25J
Designation (outside length mm) La
Designation
Designation (outside length mm) La
3V 3V 3V 3V 3V
500 530 560 600 630
9J 1270 9J 1346 9J 1422 9J 1524 9J 1600
5V 5V 5V 5V 5V
560 600 630 670 710
15J 1422 15J 1524 15J 1600 15J 1702 15J 1803
8V 1000 8V 1060 8V 1120 8V 1180 8V 1250
25J 25J 25J 25J 25J
2540 2692 2845 2997 3175
3V 3V 3V 3V 3V
670 710 750 800 850
9J 1702 9J 1803 9J 1905 9J 2032 9J 2159
5V 5V 5V 5V 5V
750 800 850 900 950
15J 1905 15J 2032 15J 2159 15J 2286 15J 2413
8V 1320 8V 1400 8V 1500 8V 1600 8V 1700
25J 25J 25J 25J 25J
3353 3556 3810 4064 4318
3V 900 3V 950 3V 1000 3V 1060 3V 1120
9J 2286 9J 2413 9J 2540 9J 2692 9J 2845
5V 1000 5V 1060 5V 1120 5V 1180 5V 1250
15J 2540 15J 2692 15J 2845 15J 2997 15J 3175
8V 1800 8V 1900 8V 2000 8V 2120 8V 2240
25J 25J 25J 25J 25J
4572 4826 5080 5385 5690
3V 1180 3V 1250 3V 1320 3V 1400
9J 2997 9J 3175 9J 3353 9J 3556
5V 1320 5V 1400 5V 1500 5V 1600 5V 1700
15J 3353 15J 3556 15J 3810 15J 4064 15J 4318
8V 2360 8V 2500 8V 2650 8V 2800 8V 3000
25J 25J 25J 25J 25J
5994 6350 6731 7112 7620
5V 1800 5V 1900 5V 2000 5V 2120 5V 2240
15J 4572 15J 4826 15J 5080 15J 5385 15J 5690
8V 3150 8V 3350 8V 3550 8V 3750 8V 4000
25J 8001 25J 8509 25J 9017 25J 9525 25J 10160
5V 2360 5V 2500 5V 2650 5V 2800 5V 3000
15J 5994 15J 6350 15J 6731 15J 7112 15J 7620
8V 4250 8V 4500 8V 4750
25J 10795 25J 11430 25J 12065
5V 3150
15J 8001
Maximum production length: 4 000 mm La
Maximum production length: 9 525 mm La
Maximum production length: 12 065 mm La
Non standard lengths on request
Non standard lengths on request
Non standard lengths on request
Weight: ≈ 0.122 kg/m per rib
Weight: ≈ 0.252 kg/m per rib
Weight: ≈ 0.693 kg/m per rib
Other sizes on request
35
Technical Manual V-Belts
Standard Range optibelt SUPER VX Variable Speed Belts – Raw Edge, Moulded Cogged – DIN 7719/ISO 1604
Section/ ISO Inside length designation (Datum length) Ld Li (mm)
13 x 5 468 500 17 x 5 426 476 536 570 606 776
W W W W W W
21 x 6 530 600 610 675 770 870 970 1220
W 20 560 W 20 630 W 20 640 W 20 710 W 20 800 W 20 900 W 20 1000 W 20 1250
22 x 8 485 525 565 650 700 750 800 850 900 950 1000 1060 1185
16 16 16 16 16 16
450 500 560 600 630 800
Section/ ISO Inside length designation (Datum length) Ld Li (mm)
26 x 8 655 672 710 750 762 800 862 962 1082 28 x 8 600 650 700 750 800 850 900 950 1000 1060 1120 1180 1250 1320 1400 1450 1500 30 x 10 650 665 700 800 850 875 900 950 1000 1035 1050 1120 1200 1320 1340 1500 1600
W 25 690 W 25 710 W 25 750 W 25 790 W 25 800 W 25 840 W 25 900 W 25 1000 W 25 1120
Section/ ISO Inside length designation (Datum length) Ld Li (mm)
Section/ ISO Inside length designation (Datum length) Ld Li (mm)
Section/ ISO Inside length designation (Datum length) Ld Li (mm)
32 x 10 750 790 820 850 900 950 1000 1073 1120 1180 1200 1353
47 x 13 1000 1060 1120 1180 1250 1320 1400 1500 1600 1700 1800
70 x 18 1600 1700 1800 1900 2000 2240 2500
W 31,5 800 W 31,5 840 W 31,5 870 W 31,5 900 W 31,5 950 W 31,5 1000 W 31,5 1050 W 31,5 1120 W 31,5 1170 W 31,5 1230 W 31,5 1250 W 31,5 1400
37 x 10 660 800 850 900 950 1000 1020 1060 1120 1180 1250 1320 1400 1500 1600 1700 1800 41 x 13 925 1000 1040 1060 1120 1180 1190 1250 1340 1440 1600 1740 1940
W W W W W W W W W W
50 50 50 50 50 50 50 50 50 50
1250 1320 1400 1480 1600 1680 1800 2000 2240 2320
55 x 16 1400 1500 1600 1700 1800
W 40 990 W 40 1060 W 40 1100 W 40 1120 W 40 1180 W 40 1240 W 40 1250 W 40 1310 W 40 1400 W 40 1500 W 40 1660 W 40 1800 W 40 2000
Standard production data Belt lengths up to 5000 mm Li Belt top widths up to 100 mm Belt thicknesses 5 to 25 mm 24° angle for sections 13 x 5; 17 x 5. 30° angle for sections 52 x 16; 55 x 16; 65 x 20 and 70 x 18. 27° angle for all other sections. Sizes in accordance with USA Standard RMA/MTPA and variable speed belts with angles of 22° to 42° can be supplied on request. Minimum order quantities are necessary.
36
52 x 16 1180 1250 1325 1400 1525 1600 1725 1925 2165 2240
65 x 20 1706 1906
W 63 1800 W 63 2000
Tolerances Length ± 1 % of the nominal belt length Angle ± 1.5° of the nominal angle Height ≤ 8 mm = ± 0.8 mm > 8 to 20 mm = ± 1.0 mm > 20 mm = ± 1.5 mm Width ± 0.75 mm
Other sizes and double cogged variable speed belts can be supplied on request.
Technical Manual V-Belts
Standard Range optibelt SUPER VX Variable Speed Belts – Raw Edge, Moulded Cogged – According to USA Standard RMA/MPTA
RMA/MPTA designation
RMA/MPTA designation
RMA/MPTA designation
1922 V 751• 1922 V 756•
2530 V 934• 2530 V 990•
1926 1926 1926 1926 1926
2830 2830 2830 2830 2830
1422 1422 1422 1422 1422
V V V V V
235• 240• 270• 290• 300•
1422 1422 1422 1422 1422
V V V V V
330• 340• 360• 400• 420•
1422 1422 1422 1422 1422
V V V V V
440• 460• 470• 480• 540•
2230 2230 2230 2230 2230
V V V V V
266• 273• 275• 326• 375•
1422 V 600• 1422 V 660•
2322 2322 2322 2322 2322
V V V V V
329• 347• 364• 396• 421•
2322 2322 2322 2322 2322
V V V V V
434• 441• 461• 481• 486•
2322 2322 2322 2322 2322
V V V V V
521• 541• 601• 661• 681•
1430 V 215• 1922 1922 1922 1922 1922
V V V V V
277• 282• 298• 321• 332•
1922 1922 1922 1922 1922
V V V V V
338• 363• 381• 386• 403•
1922 1922 1922 1922 1922
V V V V V
426• 443• 454• 460• 484•
1922 1922 1922 1922 1922
V V V V V
526• 544• 604• 630• 646•
1922 1922 1922 1922 1922
V V V V V
666• 686• 706• 721• 726•
V V V V V
250• 275• 290• 407• 415•
1926 V 427•
2322 V 701• 2322 V 801• 2426 V 353• 2426 V 363• 2530 2530 2530 2530 2530
V V V V V
500• 530• 560• 600• 630•
2530 2530 2530 2530 2530
V V V V V
670• 710• 750• 790• 800•
V V V V V
337• 363• 366• 367• 393•
2830 V 396• 2830 V 422• 2926 2926 2926 2926 2926 2926
V V V V V V
471• 486• 521• 546• 574• 586•
2926 2926 2926 2926 2926
V V V V V
606• 616• 636• 646• 666•
2926 2926 2926 2926 2926
V V V V V
686• 726• 750• 776• 786•
3226 3226 3226 3226 3226
V V V V V
392• 400• 433• 450• 505•
3226 3226 3226 3226 3226
V V V V V
545• 585• 603• 650• 663•
3226 V 723• 3226 V 783• 3226 V 843• 3230 3230 3230 3230 3230
V V V V V
419• 528• 560• 585• 600•
• Standard products – minimum order quantity on request. Other sizes and double cogged variable speed belts on request.
RMA/MPTA designation
3230 3230 3230 3230 3230
V V V V V
630• 670• 710• 723• 750•
3230 V 800• 3230 V 850• 3432 3432 3432 3432 3432
V V V V V
450• 456• 480• 528• 534•
4036 V 541• 4036 V 574• 4430 4430 4430 4430 4430
V V V V V
530• 548• 555• 560• 570•
4430 4430 4430 4430 4430
V V V V V
578• 600• 610• 630• 652•
4430 4430 4430 4430 4430
V V V V V
660• 670• 690• 700• 710•
4430 4430 4430 4430 4430
V V V V V
730• 750• 790• 800• 850•
4436 4436 4436 4436 4436
V V V V V
525• 551• 561• 576• 646•
4436 V 750•
Identification 14 = top width 14/16“ 22 = pulley groove angle V = variable speed 235 = datum length in 1/10“
37
Technical Manual V-Belts
Standard Range optibelt DK Double Section V-Belts to DIN/ISO, ASAE
AA/HAA
BB/HBB
CC/HCC
Section AA/HAA
DD/HDD
Section BB/HBB
22 x 22
Section CC/HCC
Reference length (mm)
Belt no.
Reference length (mm)
Belt no.
Reference length (mm)
Belt no.
Reference length (mm)
2000 2032 2370 2500 2650
77 78 91 96 102
1980 2180 2300 2370 2500
75 83 88 90 95
4040 4200 4470 4500 4750
156 162 173 174 184
2280 2500 2800 3200 3310
86 94 106 122 126
2667 2800 3300 3920
103 108 128 152
2540 2600 2650 2740 2800
97 99 101 105 107
5000 5639 6900
194 221 270
3765 4000 4216 4300 4500
144 153 162 165 173
2850 2920 3000 3030 3150
109 112 115 116 121
5000 5300 5340 5750
193 204 206 224
3250 3280 3325 3390 3450
125 126 128 131 133
3500 3550 3730 3750 4010
135 137 144 145 155
Weight: ≈ 0.150 kg/m
Weight: ≈ 0.250 kg/m
Non standard lengths and special constructions from: Section Section Section Section Section Section
AA/HAA 1350 BB/HBB 1350 CC/HCC 1600 DD/HDD 3000 22 x 22 3000 25 x 22 1600
to to to to to to
28 000 28 000 28 000 10 000 10 000 28 000
Minimum order quantity for special lengths on request
38
mm mm mm mm mm mm
Belt no.
25 x 22
Section DD/HDD Reference length (mm)
Belt no.
upon request
Weight: ≈ 0.935 kg/m
Section 22 x 22 5180 5220 5850 6270
Weight: ≈ 0.511 kg/m
Section 25 x 22 upon request
Weight: ≈ 0.440 kg/m
Weight: ≈ 0.625 kg/m
Conversion factors from the belt number to the reference length: Section AA/HAA – Belt no. x 25.4 = mm + 53 mm Section BB/HBB – (up to Belt no. 210) Belt no. x 25.4 = mm + 74 mm (over Belt no. 210) Belt no. x 25.4 = mm + 36 mm Section CC/HCC – (up to Belt no. 210) Belt no. x 25.4 = mm + 107 mm (over Belt no. 210) Belt no. x 25.4 = mm + 56 mm Section DD/HDD – (up to Belt no. 210) Belt no. x 25.4 = mm + 132 mm (over Belt no. 210) Belt no. x 25.4 = mm + 69 mm
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys – optibelt TB Taper Bushes optibelt RE Variable Speed Pulleys
Optibelt KS V-Grooved Pulleys
Optibelt RE Variable Speed Pulleys
Optibelt KS V-grooved pulleys are available in pilot bored and for taper bush versions for all common belt sections.
Optibelt RE variable speed pulleys allow for a multi-stage speed change between driving and driven pulley. They can be used with classical as well as variable speed belts.
Optibelt TB Taper Bushes Optibelt TB taper bushes are used for simple installations of pulleys on shafts with or without keyway.
39
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys, Types
Type 1
Type 2
Type 7
Type 3
Type 8
Type 4
Type 9
Type 5
Type 10
Type 6
Type 11
Rights to technical modifications reserved
Balancing V-grooved pulleys are statically balanced in accordance with the guidelines in VDI 2060, as standard: Quality level G 16; for dia. dd ≥ 400 mm at n = 1500 r.p.m.; for dia. dd > 400 mm at v = 30 m/s. The pulleys are balanced without keys on smooth balancing spindles. Machines whose runners are balanced with a keyway in the end of the shaft should be ordered as follows: “Balanced with pilot bore and empty keyway on smooth balancing spindles without key.”
Special pulleys and custom designed pulleys on request 40
Balancing in one plane to quality level G 6.3 on request. We recommend balancing in two planes to quality level G 6.3, or finer, when v ≥ 30 m/s or the ratio of datum diameter to face width dd : b2 is < 4 at v > 20 m/s. In such cases, the pulley operational speed must be stated.
Technical Manual V-Belts
Standard Range optibelt Pulleys – Standards – Design Criteria – Types
Solid pulley
Plate pulley
An essential component in V-belt drive systems is the V-belt pulley, or V-pulley as it is usually termed. These pulleys are predominantly made from GG 20 cast iron according to DIN 1691 and are available pilot bored, finished bored or with a taper bush. The British and DIN Standards are based on the ISO Standard as are the standards of all industrialised countries. ISO 4183
Grooved Pulleys for Classical V-Belts and Wedge Belts
V-belt pulleys with grooves for wedge belts to BS 3790 and DIN 7753 Part 1 are also suitable for classical V-belts with the same datum width bd to BS 3790 and DIN 2215. These are known as dual duty pulleys.
Belt
Top width Datum width Belt height/ groove depth
● Balancing in two planes (dynamically), quality level G 6.3, becomes necessary if: 1. v > 30 m/s or 2. the ratio of datum diameter to pulley face width dd : b2 < 4 at v > 20 m/s. Note: The timely replacement of pulleys damaged by corrosion or erosion prevents premature failure of the belts. Furthermore, it is essential that the belts should never run with their inside circumference in contact with the bottom of the groove as this can quickly lead to damage and premature failure (exception: special drives such as V-flat drives). Deep Grooved Pulleys Deep grooved pulleys are employed for special drive situations such as,
Example
Section
Spoked pulley
Grooved pulleys
SPZ
Z/10
SPZ – Z/10
bo ≈ 9.7
bo ≈ 10
b1 ≈ 9.7
bd = 8.5 h≈8
h≈6
bd = 8.5 tmin = 11
● the use of guide idlers, ● twist drives or ● drives subject to severe vibration. The increased groove top width “b1” and depth “t” of deep grooved pulleys improves the running characteristics of the belt, particularly as it enters the groove. Belt turnover and run out are prevented.
Deep grooved pulleys are not suitable for use with kraftbands.
The following should be observed in the selection of pulleys: ● Use standard pulley diameters. If design considerations make this impossible, a standard diameter should, as a minimum requirement, be chosen for the largest pulley in the drive. ● Do not select a pulley smaller than the minimum recommended size in the interest of belt service life and overall drive efficiency. ● If manufacturing your own pulleys, the overall shape and machining must conform to the relevant standards. ● Groove pulleys are generally balanced in one plane (statically), to quality level G 16 as in VDI 2060. 41
Technical Manual V-Belts
Standard Range optibelt V-Grooved Pulleys DIN 2211 Page 1 for Wedge Belts and DIN 2217 Page 1 for Classical V-Belts or BS 3790 for Wedge and Classical Belts
y
x =
Rz 25
y =
Rz 100
x
쑴
Break sharp corners y
y
쑴
Table 9 ISO designation
–
Y*
–
Z*
A*
B*
–
C*
–
D
E
BS 3790/DIN 2215 designation
5
6
8
10
13
17
20
22
25
32
40
BS 3790/DIN 7753 Part 1and ISO designation
–
–
–
SPZ*
SPA*
SPB*
–
SPC*
–
–
–
bd
4.2
5.3
6.7
8.5
11.0
14.0
17.0
19.0
21.0
27.0
32.0
b1 ≈
5.0
6.3
8.0
9.7
12.7
16.3
20.0
22.0
25.0
32.0
40.0
c
1.3
1.6
2.0
2.0
2.8
3.5
5.1
4.8
6.3
8.1
12.0
V-belt section Wedge belt section
e
6 ± 0.3 8 ± 0.3 10 ± 0.3 12 ± 0.3 15 ± 0.3 19 ± 0.4 23 ± 0.4 25,5 ± 0.5 29 ± 0.5 37 ± 0.6 44,5 ± 0.7
f
5 ± 0.5 6 ± 0.5
t
Endless belts Open-ended V-belting DIN 2216
dd min
V-belts Wedge belts
7 ± 0.6 8 ± 0.6 10 ± 0.6 12,5 ± 0.8 15 ± 0.8 17 ± 1.0 19 ± 1.0 24 ± 2.0 29 ± 2.0
18 + 0.6 22 + 0.6 28 + 0.6 33 + 0.6 0 24 + 0.6 0 0 0 6 + 0.6 7 + 0.6 9 + 0.6 11 + 0.6 14 + 0.6 18 + 0.6 0 26 + 0.6 33 + 0.6 38 + 0.6 0 0 0 0 0 0 21 + 0.6 0 0 0 0 20
28
40
50
71
112
160
180
250
355
500
–
–
–
63
90
140
–
224
–
–
–
–
–
–
–
–
–
–
–
–
–
32° ± 1° 32° ± 1° 32° ± 1° dd ≤ 50 dd ≤ 63 dd ≤ 75 –
α
Face width for z number of grooves b2 = (z – 1) e + 2 f
42
–
34° ± 1° 34° ± 1° 34° ± 1° 34° ± 1° 34° ± 1° 34° ± 1° dd ≤ 80 dd ≤ 118 dd ≤ 190 dd ≤ 250 dd ≤ 315 dd ≤ 355
–
36° ± 1° 36° ± 1° 36° ± 1° dd > 50 dd > 63 dd > 75
1 2 3 4 5 6 7 8 9 10 11 12
–
–
–
–
–
–
36° ± 30‘ 36° ± 30‘ dd ≤ 500 dd ≤ 630
38° ± 1° 38° ± 1° 38° ± 1° 38° ± 1° 38° ± 30‘ 38° ± 30‘ 38° ± 30‘ 38° ± 30‘ dd > 80 dd > 118 dd > 190 dd > 250 dd > 315 dd > 355 dd > 500 dd > 630
–
–
–
10.0 16.0 22.0 28.0 34.0 40.0
12.0 20.0 28.0 36.0 44.0 52.0 60.0
14.0 24.0 34.0 44.0 54.0 64.0 74.0 84.0
16.0 28.0 40.0 52.0 64.0 76.0 88.0 100.0 112.0
(Figures in mm)
20.0 35.0 50.0 65.0 80.0 95.0 110.0 125.0 140.0 155.0
25.0 44.0 63.0 82.0 101.0 120.0 139.0 158.0 177.0 196.0 215.0
30.0 53.0 76.0 99.0 122.0 145.0 168.0 191.0 214.0 237.0 260.0 283.0
34.0 59.5 85.0 110.5 136.0 161.5 187.0 212.5 238.0 263.5 289.0 314.5
38.0 67.0 96.0 125.0 154.0 183.0 212.0 241.0 270.0 299.0 328.0 357.0
48.0 85.0 122.0 159.0 196.0 233.0 270.0 307.0 344.0 381.0 418.0 455.0
58.0 102.5 147.0 191.5 236.0 280.5 325.0 369.5 414.0 458.5 503.0 547.5
∗ These V-pulleys also accept Optibelt SUPER TX M=S V-belts and Super X-POWER M=S wedge belts.
Technical Manual V-Belts
Standard Range optibelt V-Grooved Pulleys DIN 2211 Page 1 for Wedge Belts and DIN 2217 Page 1 for Classical V-Belts or BS 3790 for Wedge and Classical Belts
Table 10 V-belt section Wedge belt section
ISO designation
–
Y
–
Z
A
B
–
C
–
D
E
BS 3790/DIN 2215 designation
5
6
8
10
13
17
20
22
25
32
40
BS 3790/DIN 7753 Part 1 and ISO 4184 designation
–
–
–
SPZ
SPA
SPB
–
SPC
–
–
–
20.0 22.0 25.0 28.0 31.5 35.5 40.0
28.0 31.5 35.5 40.0
40
45.0 50.0 56.0 63.0
45.0 50.0 56.0 63.0
45 50 56 63
71.0
71.0
71
80.0
80.0
80
90.0
90
100.0
100
112.0
112
125.0
125 140 160 180 200
Datum diameter dd
Permissible datum diameter variations relative to one another (mm)
0.3
■ 40• ■ 45• ■ 50• ■ 56• 63 67
71 75 80 85 90 95 100 106 112 118 125 132 140 150 160
112 118 125 132 140 150 160
170 180 190 200 212 224 250
170 180 190 200 212 224 225 236 250
170 180 190 200 212 224 225 236 250 265
280 300 315
280 300 315
355
355
355
400
400
280 300 315 335 355 375 400 425
450
450
450
450
500 560 630
500 560 630
500 560 630
710
710 800 900 1000
710 800 900 1000
0.4
■ 90• ■ 95• ■ 100• ■ 106• ■ 112• ■ 118• ■ 125• ■ 132• 140 150 160
160 180 200 224 250 280 315
min.
max.
Run out and side wobble tolerance
20.0 22.0 25.0 28.0 31.5 35.5 40.0
20.4 22.4 25.4 28.4 32.0 36.1 40.6
45.0 50.0 56.0 63.0 67.0
45.7 50.8 56.9 64.0 68.0
71.0 75.0 80.0 85.0 90.0 95.0 100.0 106.0
72.1 76.1 81.3 86.3 91.4 96.4 101.6 107.6
140• 150• 160•
112.0 118.0 125.0 132.0 140.0 150.0 160.0
113.8 119.9 127.0 134.1 142.2 152.4 162.6
0.3
■ 180• ■ 190• ■ 200• ■ 212• 224 225 236 250 265
170.0 180.0 190.0 200.0 212.0 224.0 225.0 236.0 250.0 265.0
172.7 182.9 193.0 203.2 215.4 227.6 228.6 239.8 254.0 269.0
0.4
280.0 300.0 315.0 335.0 355.0 375.0 400.0 425.0
284.5 304.8 320.0 340.0 360.7 380.7 406.4 431.4
0.5
457.2 482.2 508.0 569.0 640.1
0.6
■
63• ■ 67• ■ 71• ■ 75• ■ 80• ■ 85• 90 95 100 106
Datum diameter dd
280 300 315 335 355 375 400 425
250 280 315
0.2
355
355
400
400
450
450
500 560 630
450 475 500 560 630
500 560 630
500 560 630
500 560 630
450.0 475.0 500.0 560.0 630.0
710 800 900 1000
710 800 900 1000
710 800 900 1000
710 800 900 1000
710 800 900 1000
710.0 800.0 900.0 1000.0
721.4 812.8 914.4 1016.0
0.8
1120 1250 1400 1600
1120 1250 1400 1600
1120 1250 1400 1600
1120 1250 1400 1600
1120 1250 1400 1600
1120.0 1250.0 1400.0 1600.0
1137.9 1270.0 1422.4 1625.6
1.0
1800 2000
1800 2000
1800 2000
1800 2000
1800 2000
1800.0 2000.0
1828.8 2032.0
1.2
400
0.6
—
For further details see standard DIN 2211 Page 1 and DIN 2217 Page 1 or BS 3790. These V-grooved pulleys also accept Optibelt SUPER TX M=S V-belts and Super X-POWER For Optibelt Super X-POWER M=S wedge belts wedge belts. Figures in bold type are the preferred datum diameters. For classical V-belts only
43
Technical Manual V-Belts
Standard Range optibelt V-Grooved Pulleys USA Standard RMA/MPTA for Wedge Belts
y
x =
Rz 25
y =
Rz 100
x
쑴
Break sharp corners y
y
쑴
Table 11 Belt section USA Standard RMA/MPTA
3V/9N
5V/15N
8V/25N
b1
8.89 ± 0.13
15.24 ± 0.13
25.4 ± 0.13
e
10.30 ± 0.40
17.50 ± 0.40
28.6 ± 0.40
f
9.00
+ 2.00 – 1.00
13.00
+ 3.00 – 1.00
19.0
+ 6.00 – 2.00
tmin
8.6
15.0
25.1
da min
63
140
315
36° ± 25‘ da 63 to 90
— —
— —
38° ± 25’ da > 90 to 150
38° ± 25’ da 140 to 255
38° ± 25’ 315 to 405
40° ± 25’ da > 150 to 305
40° ± 25’ da > 255 to 405
40° ± 25’ da >405 to 570
42° ± 25’ da > 305
42° ± 25’ da > 405
42° ± 25’ da > 570
α
Face width b2 for number of grooves z b2 = (z – 1) e + 2 f
1
18.0
26.0
38.0
2
28.3
43.5
66.6
3
38.6
61.0
95.2
4
48.9
78.5
123.8
5
59.2
96.0
152.4
6
69.5
113.5
181.0
7
79.8
131.0
209.6
8
90.1
148.5
238.2
9
100.4
166.0
266.8
10
110.7
183.5
295.4
11
121.0
201.0
324.0
12
131.3
218.5 (Values in mm)
352.6
For drives with several grooves the total of all deviations from the nominal value e for all groove distances of a pulley +/– 0.8 mm must not be exceeded. For further details see USA Standard RMA/MPTA. Note: The permissible variations of the V-grooved pulley according to USA Standard RMA/MPTA deviate only slightly from the values contained in ISO 5290 “Grooved pulleys for joined narrow belts” (kraftbands). Therefore Optibelt KB Kraftbands can be used for V-grooved pulleys manufactured according to both standards. These V-grooved pulleys are also used for Optibelt Super X-POWER M=S wedge belts.
44
Technical Manual V-Belts
Standard Range optibelt V-Pulleys for Kraftbands
c
y
x =
Rz 25
y =
Rz 100
x
쑴
Break sharp corners y
y
쑴
Table 12: V-pulleys for kraftbands with wedge belts according to ISO 5290 da
α° ± 30’
67 to 90 > 90 to 150 > 150 to 300 > 300
36 38 40 42
5V/15J
180 to 250 > 250 to 400 > 400
8V/25J
315 to 400 > 400 to 560 > 560
Section
3V/9J
b1 ≈
δ h1max
δ h2max
tmin
e
Tol e1)
Σ Tol e2)
fmin
da min
8.9
0.20
0.30
8.9
10.3
± 0.25
± 0.5
9
67
38 40 42
15.2
0.25
0.40
15.2
17.5
± 0.25
± 0.5
13
180
38 40 42
25.4
0.30
0.50
25.4
28.6
± 0.40
± 0.8
19
315
2. the belts are still seated deep enough in the pulley grooves to ensure full transmission of power.
δh2
The values of δ h1 and δ h2 were chosen to ensure that 1. the belt joining band does not come into contact with the outside diameter of the pulley in order to avoid the belts separating from the joining band,
b1
da
The International Standard ISO 5290 specifies pulley groove dimensions for belt sections 3V/9J, 5V/15J, 8V/25J. The groove top width “b1” is used as the basic reference dimension for standardisation of the grooves and the joined V-belts. The pulley groove and the joined V-belts are considered in the Standard ISO 5290 as a single unit.
δh1
For further details please see Standard ISO 5290. 1) Tolerance for the dimension “e” between two adjacent grooves. 2) The sum of all deviations from the nominal dimension “e” for all the groove spacings of a pulley must not exceed the tolerance shown.
b1 = effective width da = effective outside diameter The groove faces must be straight at least to the level of da – 2 δ h2.
Table 13: V-pulleys for kraftbands with section SPZ, SPA, SPB and SPC according to BS 3790/DIN 2211/ISO 4183 dd
α° ± 30’
SPZ
71 to 80 > 80
SPA
b1 ≈
c
tmin
e
Tol e1)
Σ Tol e2)
34 38
9.7
2.0
11
12.0
± 0.3
± 0.6
8.0
71
100 to 118 > 118
34 38
12.7
2.8
14
15.0
± 0.3
± 0.6
10.0
100
SPB
160 to 190 > 190
34 38
16.3
3.5
18
19.0
± 0.4
± 0.8
12.5
160
SPC
250 to 315 > 315
34 38
22.0
4.8
24
25.5
± 0.40
± 0.8
17.0
250
Section
fmin
dd min
45
Technical Manual V-Belts
Standard Range optibelt V-Pulleys for Kraftbands
Table 14: V-pulleys for kraftbands with classical V-belts ISO 5291/ASAE S211.5 b1
δ h1max
δ h2max
c
tmin
e
Tol e1)
Σ Tol e2)
fmin
da min
13.0
0.20
0.35
1.5
12.0
15.88
± 0.3
± 0.6
9.0
80
34 38
16.5
0.25
0.40
2.0
14.0
19.05
± 0.4
± 0.8
11.5
130
210 to 325 > 325
34 38
22.4
0.30
0.45
3.0
19.0
25.40
± 0.5
± 1.0
16.0
210
370 to 490 > 490
36 38
32.8
0.30
0.55
4.5
26.0
36.53
± 0.6
± 1.2
23.0
370
Section
da
α° ± 30’
AJ/HA
80 to 125 > 125
34 38
BJ/HB
130 to 195 > 195
CJ/HC DJ/HD
≈
1) Tolerance for the dimension “e” between two adjacent grooves. 2) The sum of all deviations from the nominal dimension “e” for all the groove spacings of a pulley must not exceed the tolerance shown.
Table 15: Pulley width for kraftbands Section
3V/9J
5V/15J 8V/25J
Number of grooves 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 46
SPZ
SPA
SPB
SPC
Face width b2 for number of grooves z 28.30 38.60 48.90 59.20 69.50 79.80 90.10 100.40 110.70 121.00 131.30 141.60 151.90 162.20 172.50 182.80 193.10 203.40 213.70 224.00 234.30 244.60 254.90 265.20 275.50 285.80 296.10 306.40 316.70 327.00 337.30 347.60 357.90 368.20 378.50 388.80 399.10 409.40 419.70
43.50 61.00 78.50 96.00 113.50 131.00 148.50 166.00 183.50 201.00 218.50 236.00 253.50 271.00 288.50 306.00 323.50 341.00 358.50 376.00 393.50 411.00 428.50 446.00 463.50 481.00 498.50 516.00 533.50 551.00 568.50 586.00 603.50 621.00 638.50 656.00 673.50 691.00 708.50
66.60 95.20 123.80 152.40 181.00 209.60 238.20 266.80 295.40 324.00 352.60 381.20 409.80 438.40 467.00 495.60 524.20 552.80 581.40 610.00 638.60 667.20 695.80 724.40 753.00 781.60 810.20 838.80 867.40 896.00 924.60 953.20 981.80 1010.40 1039.00 1067.60 1096.20 1124.80 1153.40
28.00 40.00 52.00 64.00 76.00 88.00 100.00 112.00 124.00 136.00 148.00 160.00 172.00 184.00 196.00 208.00 220.00 232.00 244.00 256.00 268.00 280.00 292.00 304.00 316.00 328.00 340.00 352.00 364.00 376.00 388.00 400.00 412.00 424.00 436.00 448.00 460.00 472.00 484.00
35.00 50.00 65.00 80.00 95.00 110.00 125.00 140.00 155.00 170.00 185.00 200.00 215.00 230.00 245.00 260.00 275.00 290.00 305.00 320.00 335.00 350.00 365.00 380.00 395.00 410.00 425.00 440.00 455.00 470.00 485.00 500.00 515.00 530.00 545.00 560.00 575.00 590.00 605.00
44.00 63.00 82.00 101.00 120.00 139.00 158.00 177.00 196.00 215.00 234.00 253.00 272.00 291.00 310.00 329.00 348.00 367.00 386.00 405.00 424.00 443.00 462.00 481.00 500.00 519.00 538.00 557.00 576.00 595.00 614.00 633.00 652.00 671.00 690.00 709.00 728.00 747.00 766.00
59.50 85.00 110.50 136.00 161.50 187.00 212.50 238.00 263.50 289.00 314.50 340.00 365.50 391.00 416.50 442.00 467.50 493.00 518.50 544.00 569.50 595.00 620.50 646.00 671.50 697.00 722.50 748.00 773.50 799.00 824.50 850.00 875.50 901.00 926.50 952.00 977.50 1003.00 1028.50
AJ/HA
BJ/HB
CJ/HC
DJ/HD
57.40 82.80 108.20 133.60 159.00 184.40 209.80 235.20 260.60 286.00 311.40 336.80 362.20 387.60 413.00 438.40 463.80 489.20 514.60 540.00 565.40 590.80 616.20 641.60 667.00 692.40 717.80 743.20 768.60 794.00 819.40 844.80 870.20 895.60 921.00 946.40 971.80 997.20 1022.60
82.53 119.06 155.59 192.12 228.65 265.18 301.71 338.24 374.77 401.30 447.83 484.36 520.89 557.42 593.95 630.48 667.01 703.54 740.07 776.60 813.13 849.66 886.19 922.72 959.25 995.78 1032.31 1068.84 1105.37 1141.90 1178.43 1214.96 1251.49 1288.02 1324.55 1361.08 1397.61 1434.14 1470.67
b2 = (z – 1) e + 2 f 33.88 49.76 65.64 81.52 97.40 113.28 129.16 145.04 160.92 176.80 192.68 208.56 224.44 240.32 256.20 272.08 287.96 303.84 319.72 335.60 351.48 367.36 383.24 399.12 415.00 430.88 446.76 462.64 478.52 494.40 510.28 526.16 542.04 557.92 573.80 589.68 605.56 621.44 637.32
42.05 61.10 80.15 99.20 118.25 137.30 156.35 175.40 194.45 213.50 232.55 251.60 270.65 289.70 308.75 327.80 346.85 365.90 384.95 404.00 423.05 442.10 461.15 480.20 499.25 518.30 537.35 556.40 575.45 594.50 613.55 632.60 651.65 670.70 689.75 708.80 727.85 746.90 765.95
For KB sets observe systematic classification.
Technical Manual V-Belts
Standard Range optibelt Deep Grooved Pulleys
y
x =
Rz 25
y =
Rz 100
x
쑴
Break sharp corners y
y
쑴
Table 16 Section
BS 3790/DIN 7753 Part1/ISO
SPZ
SPA
SPB
SPC
Z/10
A/13
B/17
C/22
8.5
11.0
14.0
19.0
α = 34°
11.0
15.0
18.9
26.3
α = 38°
11.3
15.4
19.5
27.3
c
4.0
6.5
8.0
12.0
e
14 ± 0.3
18 ± 0.3
23.0 ± 0.4
31 ± 0.5
f
8 ± 0.6
10 ± 0.6
12.5 ± 0.8
17 ± 1.0
13
18
22.5
31.5
34° ± 1° dd 63 to 80
34° ± 1° dd 90 to 118
34° ± 1° dd 140 to 190
34° ± 30‘ dd 224 to 315
38° ± 1° dd > 80
38° ± 1° dd >118
38° ± 1° dd > 190
38° ± 30‘ dd > 315
34° ± 1° dd 50 to 80
34° ± 1° dd 71 to 118
34° ± 1° dd 112 to 190
34° ± 30‘ dd 180 to 315
38° ± 1° dd > 80
38° ± 1° dd >118
38° ± 1° dd > 190
38° ± 30‘ dd > 315
1
16
20
25
34
For V-belts according to BS 3790/ DIN 2215 and 2216 bd b1 ≈
tmin
α
for datum diameter dd for wedge belts BS 3790/DIN 7753 Part 1
α
for datum diameter dd for classical V-belts according to BS 3790/DIN 2215
Face width b2 for number of grooves z b2 = (z – 1) e + 2 f
2
29
37
47
64
3
42
54
69
94
4
55
71
91
124
5
68
88
113
154
6
81
105
135
184
7
94
122
157
214
8
107
139
179
244
9
120
156
201
274
10
133
173
223
304
11
146
190
245
334
12
159
207
267
364
Please note the minimum pulley diameters, pages 10 and 12. Warning: Do not use kraftbands in deep grooved pulleys.
47
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPZ/Z/10 Datum diameter dd (mm)
No. of grooves
Weight without bush (≈ kg)
Taper bush
50▲◆
1 2
● ●
11 11
0.30 0.40
1008 1008
56▲◆
1 2
● ●
11 11
0.40 0.50
1008 1108
60▲◆■
1 2
● ●
8 11
0.20 0.60
1008 1108
63
1 2 3
● ● ●
8 6 6
0.20 0.30 0.40
1108 1108 1108
67
1 2 3
● ● ●
8 6 6
0.30 0.40 0.50
1108 1108 1108
71
1 2 3
● ● ●
8 6 6
0.30 0.40 0.60
1108 1108 1108
75
1 2 3
● ● ●
8 6 6
0.40 0.40 0.50
1108 1210 1210
80
1 2 3 4
● ● ● ●
8 6 6 6
0.50 0.60 0.70 0.80
1210 1210 1210 1210
85
1 2 3 4 5
● ● ● ● ●
8 6 6 6 6
0.60 0.50 0.60 0.90 1.00
1210 1610 1610 1610 1610
90
1 2 3 4 5
● ● ● ● ●
8 6 6 6 6
0.70 0.70 0.80 1.00 1.20
1210 1610 1610 1610 1610
1 2 3 4 5
● ● ● ● ●
8 6 6 6 6
0.70 0.80 0.90 1.10 1.30
1210 1610 1610 1610 1610
1 2 3 4 5 6*
● ● ● ● ● ●
8 6 6 6 6 6
0.80 0.90 1.10 1.10 1.30 1.40
1210 1610 1610 1610 2012 2012
95
100
▲
Type
for Section 10
◆ for
Section ZX/X10
■
Datum diameter dd (mm)
No. of grooves
● ● ● ● ● ●
8 6 6 6 6 6
0.90 1.10 1.30 1.30 1.50 1.60
1610 1610 1610 1610 2012 2012
112
1 2 3 4 5 6*
● ● ● ● ● ●
8 6 6 6 6 6
1.00 1.30 1.30 1.50 1.80 1.90
1610 1610 2012 2012 2012 2012
118
1 2 3 4 5 6*
● ● ● ● ● ●
8 6 6 6 6 6
0.90 1.30 1.60 1.80 1.80 2.00
1610 1610 2012 2012 2012 2517
125
1 2 3 4 5 6*
● ● ● ● ● ●
8 6 2 2 6 6
1.00 1.40 1.80 2.20 2.30 2.50
1610 1610 2012 2012 2012 2517
132
1 2 3 4 5 6*
● ● ● ● ● ●
8 6 2 2 6 6
1.10 1.50 2.30 2.50 2.70 2.90
1610 1610 2012 2012 2517 2517
140
1 2 3 4 5 6* 8*
● ● ● ● ● ● ●
8 2 2 2 2 2 4
1.20 1.70 2.60 2.90 3.20 3.50 4.00
1610 1610 2012 2012 2517 2517 2517
150
1 2 3 4 5 6* 8*
● ● ● ● ● ● ●
8 8 2 2 2 2 4
1.20 2.00 3.10 3.70 4.00 4.40 5.10
1610 2012 2012 2517 2517 2517 2517
for Section XPZ 3
4
5
6
8
16
28
40
52
64
76
100
Taper bush
1008
1108
1210
1610
2012
2517
3020
Bore d2 (mm) from ... to ...
10-25
10-28
11-32
14-42
14-50
16-60
25-75
48
Taper bush
1 2 3 4 5 6*
2
Face width b2 (mm)
Weight without bush (≈ kg)
106
1
No. of grooves z
Type
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPZ/Z/10 Datum diameter dd (mm)
No. of grooves
Type
Weight without bush (≈ kg)
Taper bush
Datum diameter dd (mm)
No. of grooves
Type
Weight without bush (≈ kg)
Taper bush
160
1 2 3 4 5 6* 8*
● ● ● ● ● ● ●
8 8 2 2 2 2 4
1.30 2.50 3.60 4.40 4.80 5.20 5.60
1610 2012 2012 2517 2517 2517 2517
280
1 2 3 4 5 6* 8*
x x x x x x x
7 7 7 10 10 10 10
2.90 4.00 5.30 6.40 7.10 7.80 10.80
2012 2012 2517 2517 2517 2517 3020
170
1 2 3 4 5 6*
● ● O ● ● ●
8 8 9 2 2 2
1.50 2.50 4.20 5.30 5.90 6.50
1610 2012 2012 2517 2517 2517
315
1 2 3 4 5 6*
x x x x x x
7 7 7 10 10 10
3.10 4.20 6.10 7.60 8.60 9.30
2012 2012 2517 2517 2517 2517
180
1 2 3 4 5 6* 8*
● ● O O O O ●
8 8 9 9 9 9 4
1.60 2.50 4.80 6.10 6.30 6.80 7.10
1610 2012 2012 2517 2517 2517 3020
355
1 2 3 4 5 6* 8*
x x x x x x x
7 7 7 10 10 10 10
3.50 5.10 7.30 8.90 10.00 10.70 16.00
2012 2012 2517 2517 2517 2517 3030
190
1 2 3 4 5 6*
● ● O O O O
8 8 9 9 9 9
1.80 2.60 4.90 5.30 6.30 6.90
1610 2012 2012 2517 2517 2517
400
200
1 2 3 4 5 6* 8*
● ● O O O O ●
8 8 9 9 9 9 4
2.30 2.80 3.50 4.70 5.50 6.10 9.30
2012 2012 2012 2517 2517 2517 3020
1 2 3 4 5 6* 8*
x x x x x x x
7 7 7 10 10 10 10
6.00 6.30 8.00 10.10 11.70 14.50 18.20
2012 2517 2517 2517 3020 3020 3030
450
224
1 2 3 4 5 6* 8*
O O O O O O ●
5 5 9 9 9 9 4
2.50 3.20 3.90 5.20 6.00 6.60 11.80
2012 2012 2012 2517 2517 2517 3020
1 2 3 4 5 6* 8*
x x x x x x x
7 7 7 10 10 10 10
6.10 8.20 9.80 11.80 13.90 16.90 24.00
2517 2517 2517 3020 3020 3030 3535
500
2 3 4 5 6*
x x x x x
7 7 10 10 10
9.10 11.40 14.30 17.60 19.90
2517 2517 3020 3020 3020
250
1 2 3 4 5 6 8*
x x x x x x x
7 7 10 10 10 10 10
2.80 3.50 4.30 5.70 7.00 7.00 10.50
2012 2012 2012 2517 2517 2517 3020
630
3 4 5 6*
x x x x
7 10 10 7
15.90 20.00 22.70 33.60
2517 3020 3020 3535
No. of grooves z Face width b2 (mm)
1
2
3
4
5
6
8
16
28
40
52
64
76
100
Taper bush
1610
2012
2517
3020
3030
3535
Bore d2 (mm) from ... to ...
14-42
14-50
16-60
25-75
35-75
35-90
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
49
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPA/A/13 Datum diameter dd (mm)
▲
No. of grooves
Type
Weight without bush (≈ kg)
Taper bush
63◆
1 2
● ●
11 11
0,60 0,80
1108 1108
67◆
1 2
● ●
8 6
0,30 0,50
1108 1108
71▲◆■
1 2 3
● ● ●
8 6 6
0,30 0,50 0,70
1108 1108 1108
75▲◆■
1 2 3
● ● ●
8 6 6
0,40 0,60 0,80
1108 1108 1108
80▲◆■
1 2 3
● ● ●
8 6 6
0,50 0,60 0,90
1210 1210 1210
85▲◆■
1 2 3
● ● ●
8 6 6
0,60 0,70 1,00
1210 1210 1210
90
1 2 3 4
● ● ● ●
8 6 6 6
0,70 0,70 1,00 1,20
1210 1610 1610 1615
95
1 2 3 4
● ● ● ●
8 6 6 6
0,80 0,90 1,10 1,40
1210 1610 1610 1615
100
1 2 3 4 5
● ● ● ● ●
8 6 2 2 6
0,80 0,90 1,20 1,70 1,90
1610 1610 1610 1610 1610
106
1 2 3 4 5
● ● ● ● ●
8 6 2 6 6
0,90 1,10 1,40 2,00 2,00
1610 1610 1610 2012 2012
112
1 2 3 4 5
● ● ● ● ●
8 6 6 6 6
1,00 1,20 1,30 1,90 2,10
1610 1610 2012 2012 2012
for Section 13
◆ for
No. of grooves z Face width b2 (mm)
Section AX/X13
■
Datum diameter dd (mm)
No. of grooves
Weight without bush (≈ kg)
Taper bush
118
1 2 3 4 5
● ● ● ● ●
8 6 2 2 2
1,20 1,40 1,80 2,00 2,40
1610 1610 2012 2012 2012
125
1 2 3 4 5
● ● ● ● ●
8 2 2 2 2
1,40 1,70 2,00 2,50 2,70
1610 1610 2012 2012 2012
132
1 2 3 4 5
● ● ● ● ●
8 2 2 2 2
1,60 1,80 2,30 2,60 2,90
1610 2012 2012 2517 2517
140
1 2 3 4 5
● ● ● ● ●
8 2 2 2 2
1,80 2,00 2,80 3,10 3,40
1610 2012 2517 2517 2517
150
1 2 3 4 5
● ● ● ● ●
8 2 2 2 2
1,40 2,40 3,50 3,80 4,20
1610 2012 2517 2517 2517
160
1 2 3 4 5
O ● ● ● ●
5 2 2 2 2
1,90 2,90 3,90 4,40 5,10
1610 2012 2517 2517 2517
170
1 2 3 4 5
O ● ● ● ●
5 2 2 2 2
2,00 3,10 4,60 5,50 5,90
1610 2012 2517 2517 3020
180
1 2 3 4 5
O O ● ● ●
5 9 2 2 2
2,10 3,40 5,10 5,90 6,20
1610 2012 2517 2517 3020
190
1 2 3 4 5
O O ● ● ●
5 9 2 2 2
2,30 3,80 5,40 6,80 7,40
1610 2012 2517 2517 3020
for Section XPA
1
2
3
4
5
20
35
50
65
80
Taper bush
1108
1210
1610
1615
2012
2517
3020
Bore d2 (mm) from ... to ...
10-28
11-32
14-42
14-42
14-50
16-60
25-75
50
Type
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPA/A/13 Datum diameter dd (mm)
No. of grooves
Type
Weight without bush (≈ kg)
Taper bush
Datum diameter dd (mm)
No. of grooves
Weight without bush (≈ kg)
Type
Taper bush
200
1 2 3 4 5
O O O ● ●
5 5 9 2 4
2.60 4.10 4.90 7.40 8.40
2012 2517 2517 3020 3020
450
1 2 3 4 5
x x x x x
7 7 7 10 7
7.00 10.30 14.10 15.50 24.30
2012 2517 3020 3020 3535
212
1 2 3 4 5
O O O ● ●
5 5 9 2 2
2.70 4.30 5.20 7.30 8.20
2012 2517 2517 3020 3020
500
1 2 3 4 5
x x x x x
7 7 7 10 7
8.00 11.60 16.00 18.20 27.30
2517 2517 3020 3020 3535
224
1 2 3 4 5
x O O ● ●
7 5 9 2 2
2.70 4.40 5.50 7.40 8.30
2012 2517 2517 3020 3020
560
1 2 3 4 5
x x x x x
7 7 7 7 7
11.60 15.50 17.80 26.70 30.40
2517 3020 3020 3535 3535
236
1 2 3 4 5
x O O ● ●
7 5 9 2 2
2.80 4.60 5.70 7.80 8.70
2012 2517 2517 3020 3020
630
1 2 3 4 5
x x x x x
7 7 7 7 7
10.10 16.00 22.00 30.80 33.70
2517 3020 3020 3535 3535
250
1 2 3 4 5
x x O O O
7 7 9 9 9
2.90 4.80 5.90 8.00 9.00
2012 2517 2517 3020 3020
280
1 2 3 4 5
x x O O O
7 7 9 9 5
3.30 5.40 6.70 8.80 15.50
2012 2517 2517 3020 3535
315
1 2 3 4 5
x x O O O
7 7 5 9 5
3.60 6.00 8.30 9.70 17.00
2012 2517 3020 3020 3535
355
1 2 3 4 5
x x x x x
7 7 7 10 7
4.20 6.70 9.20 11.00 18.60
2012 2517 3020 3020 3535
400
1 2 3 4 5
x x x x x
7 7 7 10 7
4.90 8.10 11.00 12.80 21.00
2012 2517 3020 3020 3535 ● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley
1
2
3
4
5
Face width b2 (mm)
20
35
50
65
80
Taper bush
2012
2517
3020
3535
Bore d2 (mm) from ... to ...
14-50
16-60
25-75
35-90
No. of grooves z
Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
51
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPB/B/17 Datum diameter dd (mm)
Type
Weight without bush (≈ kg)
Taper bush
Datum diameter dd (mm)
100◆
1 2 3
● ● ●
1 6 6
0.90 1.20 1.70
1610 1610 1610
112▲◆■
1 2 3
● ● ●
1 6 6
1.10 1.50 2.00
1610 1610 1610
118▲◆■
1 2 3
● ● ●
1 6 6
1.30 1.70 2.30
1610 1610 1610
125▲◆■
1 2 3 4 5
● ● ● ● ●
1 2 2 4 6
1.50 1.90 2.40 3.00 3.50
1610 2012 2012 2012 2012
132▲
1 2 3 4 5
● ● ● ● ●
1 2 2 4 4
1.80 2.20 2.80 3.40 3.70
1610 2012 2012 2012 2012
140
1 2 3 4 5 6
● ● ● ● ● ●
1 2 2 2 2 4
2.30 2.70 3.30 3.70 4.50 4.60
1610 2012 2012 2517 2517 2517
150
1 2 3 4 5 6
● ● ● ● ● ●
1 2 2 2 4 4
2.70 3.10 3.90 4.40 5.20 5.60
1610 2012 2517 2517 2517 2517
1 2 3 4 5 6
● ● ● ● ● ●
1 2 2 4 4 4
2.50 2.90 4.20 4.90 6.00 5.40
1610 2012 2517 2517 2517 3020
1 2 3 4 5 6 8
● ● ● ● ● ● ●
1 2 2 4 4 4 4
2.90 3.30 4.90 5.70 6.10 6.50 8.00
1610 2012 2517 2517 3020 3020 3020
160
170
▲
No. of grooves
for Section 17
◆ for
Section BX/X17
■
No. of grooves
Taper bush
1 2 3 4 5 6 8
● ● ● ● ● ● ●
1 8 2 4 4 4 4
4.10 4.50 5.50 6.90 7.10 7.70 9.50
1610 2517 2517 2517 3020 3020 3020
190
1 2 3 4 5 6 8
● ● ● ● ● ● ●
8 8 2 4 4 4 4
4.60 5.00 6.30 7.60 8.10 9.20 11.20
2012 2517 2517 2517 3020 3020 3030
200
1 2 3 4 5 6 8
● ● ● ● ● ● ●
8 8 2 2 2 4 4
5.00 5.40 6.50 8.80 9.10 10.30 13.50
2012 2517 2517 3020 3020 3020 3535
212
1 2 3 4 5 6 8
● ● ● ● ● ● ●
8 8 2 2 2 4 4
4.20 4.90 6.00 9.80 11.00 14.30 16.60
2012 2517 2517 3020 3020 3535 3535
224
1 2 3 4 5 6 8 10
● ● ● ● ● ● ● ●
8 8 2 2 2 4 4 4
4.70 5.30 6.30 11.30 12.70 17.00 19.30 21.80
2012 2517 2517 3020 3020 3535 3535 3535
236
1 2 3 4 5 6 8 10
● ● x x ● ● ● ●
8 8 10 10 6 4 4 4
5.00 5.50 7.00 14.50 16.90 20.00 22.30 25.30
2012 2517 2517 3020 3535 3535 3535 3535
for Section XPB
2
3
4
5
6
8
10
Face width b2 (mm)
25
44
63
82
101
120
158
196
Taper bush
1610
2012
2517
3020
3030
3535
Bore d2 (mm) from ... to ...
14-42
14-50
16-60
25-75
35-75
35-90
52
Weight without bush (≈ kg)
180
1
No. of grooves z
Type
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPB/B/17 Datum diameter dd (mm)
No. of grooves
Type
Weight without bush (≈ kg)
Taper bush
Datum diameter dd (mm)
No. of grooves
250
1 2 3 4 5 6 8 10
● x ● ● ● ● ● ●
8 7 2 2 2 4 4 4
5.40 5.50 7.70 19.60 21.70 23.30 27.50 29.30
2012 2517 3020 3020 3535 3535 3535 3535
265
2 3 4 6 8
● O O O O
7 9 9 9 9
6.20 8.00 9.50 16.70 24.00
2517 3020 3020 3525 3525
280
1 2 3 4 5 6 8 10
x x x O O O O O
7 7 10 9 9 9 9 9
6.10 6.80 8.60 10.10 17.80 19.60 26.70 30.50
2012 2517 3020 3020 3535 3535 3535 3535
2 3 4 5 6 8
x x O O O O
7 10 9 9 9 9
7.30 9.20 14.30 18.20 21.90 26.20
2517 3020 3020 3535 3535 3535
1 2 3 4 5 6 8 10
x x x O O O O O
7 7 10 5 9 9 9 9
7.20 7.80 9.60 17.10 18.80 23.00 26.00 31.50
2012 2517 3020 3535 3535 3535 3535 3535
2 3 4 5 6 8 10*
x x x x x x x
7 10 7 10 10 10 10
7.80 10.50 18.30 19.50 22.00 28.20 36.00
2517 3020 3535 3535 3535 3535 4040
1
2
3
4
5
6
8
10
25
44
63
82
101
120
158
196
Taper bush
2012
2517
3020
3030
3535
Bore d2 (mm) from ... to ...
14-50
16-60
25-75
35-75
35-90
300
315
335
No. of grooves z Face width b2 (mm)
Type
Weight without bush (≈ kg)
Taper bush
355
2 3 4 5 6 8 10*
x x x x O x x
7 10 7 10 9 10 10
8.70 10.80 18.60 20.80 22.80 27.00 38.00
3020 3020 3535 3535 3535 3535 4040
375
2 3 4 6 8
x x x x x
7 10 10 10 10
9.50 11.50 16.50 25.00 28.00
3020 3020 3525 3535 4040
400
2 3 4 5 6 8 10*
x x x x x x x
7 7 7 10 10 10 10
10.00 18.30 20.50 23.40 25.10 36.50 41.00
3020 3535 3535 3535 3535 4040 4040
425
2 3 4 6 8
x x x x x
7 7 10 10 10
11.50 18.00 19.50 25.10 52.50
3020 3535 3535 4040 4545
450
2 3 4 5 6 8 10*
x x x x x x x
7 7 7 10 10 10 10
12.10 21.90 24.50 27.30 35.50 40.90 53.50
3020 3535 3535 3535 4040 4040 4545
500
2 3 4 5 6 8 10*
x x x x x x x
7 7 7 10 10 10 10
13.20 23.10 26.60 29.90 38.90 45.50 61.00
3020 3535 3535 3535 4040 4040 4545
560
2 3 4 5 6 8 10*
x x x x x x x
7 7 7 7 10 10 10
16.50 25.90 29.00 35.30 43.10 49.00 55.70
3030 3535 3535 4040 4040 4545 4545
4040
4545
40-100 55-110
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
53
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPB/B/17 Datum diameter dd (mm)
No. of grooves
Weight without bush (≈ kg)
Type
Datum diameter dd (mm)
Taper bush
630
2 3 4 5 6 8 10*
x x x x x x x
7 7 7 7 10 10 10
18.50 28.90 33.30 43.10 49.20 62.00 72.00
3020 3535 3535 4040 4040 4545 4545
710
3 4 5 6 8 10*
x x x x x x
7 7 7 10 10 10
33.20 39.10 50.20 62.30 71.00 80.00
3535 3535 4040 4545 4545 4545
800
3 4 5 6 8 10*
x x x x x x
7 7 7 10 10 10
36.70 48.80 56.10 71.40 90.90 102.00
3535 4040 4040 4545 4545 4545
900
3 4 5 6 8 10*
x x x x x x
7 7 7 10 10 10
46.80 60.00 74.80 81.50 110.00 126.00
3535 4040 4545 4545 4545 5050
1000
3 4 5 6 8 10*
x x x x x x
7 7 7 10 10 10
56.50 66.50 80.50 90.00 132.00 147.00
4040 4040 4545 4545 5050 5050
No. of grooves
2
3
4
5
6
8
10
Face width b2 (mm)
44
63
82
101
120
158
196
Taper bush
3030
3535
4040
4545
5050
Bore d2 (mm) from ... to ...
35-75
35-90
40-100
55-110
70-125
No. of grooves z
54
Type
Weight without bush (≈ kg)
Taper bush
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPC/C/22 Datum diameter dd (mm)
Weight without bush (≈ kg)
Type
3 4 5 6
● ● ● ●
4 4 4 4
9.00 10.50 14.00 17.00
2517 3020 3535 3535
212▲◆■
3 4 5 6
● ● ● ●
4 4 4 4
10.00 12.50 15.00 18.00
3020 3020 3535 3535
2 3 4 5 6 8
● ● ● ● ● ●
4 4 4 4 4 4
8.10 11.00 14.00 16.20 19.00 24.90
3020 3020 3535 3535 3535 3535
3 4 5 6 8
● ● ● ● ●
4 4 4 4 4
12.00 17.20 19.10 20.80 25.50
3020 3535 3535 3535 3535
2 3 4 5 6 8 10*
● ● ● ● ● ● ●
4 4 4 4 4 4 4
9.80 14.50 20.70 22.80 26.00 29.70 34.00
3 4 5 6 8
● O O O O
8 9 9 9 9
3 4 5 6 8 10*
● O O O O O
3 4 5 6 8 10*
O O O O ● O
236
250
265
280
300
for Section 22
◆ for
Datum diameter dd (mm)
Taper bush
200▲◆■
224
▲
No. of grooves
No. of grooves
3 4 5 6 8 10*
O O O O ● O
5 9 9 9 4 9
21.60 24.60 29.00 31.40 50.00 58.00
3535 3535 3535 3535 4040 4545
335
3 4 5 6 8
O O O O O
5 9 9 9 9
22.50 26.50 30.00 35.00 58.00
3535 3535 3535 3535 4040
355
3 4 5 6 8 10*
O O O O O O
5 9 9 9 9 9
22.90 28.30 32.50 36.00 67.50 121.00
3535 3535 3535 3535 4040 4545
375
3020 3020 3535 3535 3535 3535 4040
3 4 5 6 8
O O O O O
5 9 9 9 9
23.80 30.00 33.00 45.50 68.00
3535 3535 3535 4040 4545
400
21.20 24.00 26.20 29.00 33.30
3535 3535 3535 3535 3535
3 4 5 6 8 10*
x x x O O O
7 10 10 9 9 9
24.10 28.00 34.00 48.00 65.00 88.00
3535 3535 3535 4040 4545 5050
425
8 9 9 9 9 9
24.00 29.00 31.00 33.80 37.50 45.00
3535 3535 3535 3535 3535 4040
3 4 5 6 8
x x O O O
7 10 9 9 9
26.00 31.00 45.00 58.00 74.00
3535 3535 4040 4545 4545
450
5 9 9 9 4 9
21.00 25.00 28.50 29.00 46.50 53.50
3535 3535 3535 3535 4040 4545
3 4 5 6 8 10*
x x x O O O
7 10 10 9 9 9
28.60 33.50 45.00 61.10 78.70 101.00
3535 3535 4040 4545 5050 5050
475
3 4 5 6 8
x x x O O
7 10 10 9 9
40.00 47.00 47.20 62.80 81.50
3535 3535 4040 4545 5050
Section CX/X22
■
for Section XPC
4
5
6
8
10
85
110,5
136
161,5
212,5
263,5
Taper bush
2517
3020
3535
4040
4545
5050
Bore d2 (mm) from ... to ...
16-60
25-75
35-90
40-100
55-110
70-125
Face width b2 (mm)
Taper bush
315
3
No. of grooves z
Weight without bush (≈ kg)
Type
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
55
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Taper Bushes – Grooves to BS 3790/DIN 2211
Section SPC/C/22 Datum diameter dd (mm)
No. of grooves
Type
Weight without bush (≈ kg)
Taper bush
500
3 4 5 6 8 10*
x x x x O O
7 10 10 10 9 9
30.90 39.00 48.70 60.20 87.40 127.00
3535 3535 4040 4545 5050 5050
560
3 4 5 6 8 10*
x x x x x O
7 10 10 10 10 9
36.00 50.00 63.00 77.00 94.00 115.00
3535 4040 4545 5050 5050 5050
630
3 4 5 6 8 10*
x x x x x O
7 7 10 10 10 9
48.50 61.00 77.00 86.00 105.50 130.00
4040 4545 5050 5050 5050 5050
710
3 4 5 6 8 10*
x x x x x O
7 7 10 10 10 9
— — — — — —
4040 4545 5050 5050 5050 5050
800
3 4 5 6 8 10*
x x x x x O
7 7 10 10 10 9
— — — — — —
4545 5050 5050 5050 5050 5050
1000
5 6 8 10*
x x x O
10 10 10 9
— — — —
5050 5050 5050 5050
1250
5 6 8 10*
x x x O
10 10 10 9
— — — —
5050 5050 5050 5050
No. of grooves z Face width b2 (mm)
Datum diameter dd (mm)
No. of grooves
3
4
5
6
8
10
85
110,5
136
161,5
212,5
263,5
Taper bush
3535
4040
4545
5050
Bore d2 (mm) from ... to ...
35-90
40-100
55-110
70-125
56
Type
Weight without bush (≈ kg)
Taper bush
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Material: EN-GJL 200 (GG 20) DIN 1691 * Non stock item Bore diameter d2 see page 66
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Plain Boring – Grooves According to BS 3790/DIN 2211
Section SPZ/Z/10 Finished bore dmax (mm)
Distance through hub l (mm)
Datum diameter dd (mm)
0.23 0.30 0.40
16 16 16
24 35 35
O O O
0.30 0.40 0.50
20 20 20
1 2 3
O O O
0.32 0.45 0.65
63
1 2 3
O O O
71
1 2 3
75
Finished bore dmax (mm)
Distance through hub l (mm)
0.81 1.30 1.62
30 38 40
24 35 40
O O O
0.92 1.40 1.69
28 38 38
24 38 40
1 2 3
x O O
1.05 1.50 1.85
28 38 38
24 38 40
160
1 2 3
x x x
1.22 1.60 2.40
32 38 42
30 38 40
24 35 40
170
1 2 3
x x x
1.66 1.85 3.00
40 40 42
30 38 40
24 24 28
24 35 40
180
1 2 3
x x x
2.10 3.05 3.50
32 38 42
30 38 40
0.35 0.65 1.10
25 30 38
24 35 35
190
1 2 3
x x x
2.25 2.35 4.00
35 35 35
30 38 40
O O O
0.30 0.70 1.10
25 30 38
24 35 35
200
1 2 3
x x x
2.40 2.85 4.45
32 38 42
38 38 40
1 2 3
O O O
0.38 0.75 1.15
25 30 38
24 35 38
212
1 2 3
x x x
2.60 3.40 5.00
35 35 38
30 38 40
95
1 2 3
O O O
0.40 0.83 1.20
28 28 38
24 35 38
225
1 2 3
x x x
2.80 4.00 5.30
32 38 42
38 38 40
100
1 2 3
O O O
0.48 0.90 1.25
28 30 38
24 35 38
250
1 2 3
x x x
3.30 4.80 6.00
32 38 42
38 38 40
106
1 2 3
O O O
0.50 0.96 1.32
30 28 38
24 35 38
280
1 2 3
x x x
3.85 5.20 7.00
35 42 48
34 38 40
112
1 2 3
O O O
0.54 1.00 1.40
28 30 38
24 35 38
315
1 2 3
x x x
4.35 6.80 8.25
35 42 48
34 38 40
118
1 2 3
O O O
0.60 1.10 1.47
28 38 38
24 35 38
355
1 2 3
x x x
4.60 8.00 10.00
35 42 48
34 40 45
125
1 2 3
O O O
0.70 1.20 1.55
28 30 38
24 35 40
Datum diameter dd (mm)
▲
No. of grooves
Type
No. of grooves
Type
45▲◆
1 2 3
O O O
132
1 2 3
O O O
50▲◆
1 2 3
24 35 40
140
1 2 3
56▲◆■
20 25 25
24 35 40
150
0.34 0.60 0.85
25 25 25
24 35 40
O O O
0.34 0.62 1.00
25 25 30
1 2 3
O O O
0.35 0.64 1.05
80
1 2 3
O O O
85
1 2 3
90
for Section Z/10
No. of grooves z Face width b2 (mm)
◆ for
Weight (≈ kg)
Section ZX/X10
■
Weight (≈ kg)
for Section XPZ
1
2
3
16
28
40
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Hub position: flush one side Material: EN-GJL 200 (GG 20) – DIN 1691
57
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Plain Boring – Grooves According to BS 3790/DIN 2211
Section SPA/A/13
0.88 1.65 2.20 3.24 3.85
28 28 32 32 35
34 49 42 53 60
O O O O O
1.09 1.75 2.38 3.37 3.95
28 38 38 42 42
34 49 42 53 60
1 2 3 4 5
O O O O O
1.10 1.80 2.42 3.42 4.10
32 38 42 42 48
34 49 42 53 65
125
34 49 42 60 82
1 2 3 4 5
O O O O O
1.38 1.90 2.55 3.49 4.40
32 38 42 42 48
34 49 42 53 65
132
28 32 38 38 38
34 49 42 60 55
1 2 3 4 5
O O O O O
1.45 2.20 2.58 3.58 4.75
32 38 42 42 48
34 49 42 53 65
140
0.64 1.20 1.40 1.98 2.20
24 28 28 28 32
34 49 42 53 55
1 2 3 4 5
O O O O O
1.52 2.33 2.63 3.65 4.95
32 38 42 42 48
34 49 42 53 65
150
O O O O O
0.88 1.47 1.62 2.22 2.51
28 32 38 42 42
34 49 42 53 67
1 2 3 4 5
x x O O O
1.60 2.59 2.95 4.04 5.15
38 38 42 42 48
36 49 42 53 65
160
1 2 3 4 5
O O O O O
0.76 1.57 1.89 2.47 2.75
28 28 28 32 35
34 49 42 53 67
1 2 3 4 5
x x x O O
1.75 2.40 2.80 3.62 5.45
38 38 42 48 48
36 49 42 60 70
170
1 2 3 4 5
O O O O O
0.84 1.36 1.98 2.72 3.10
28 32 38 42 42
34 49 52 53 60
1 2 3 4 5
x x x x x
2.00 2.90 3.20 4.20 5.80
35 35 35 35 38
36 49 42 60 70
Datum diameter dd (mm)
0.34 0.48 0.55
18 18 18
34 49 47
106
O O O
0.42 0.62 0.74
20 20 20
34 49 47
1 2 3 4 5
O O O O O
112
1 2 3 4 5
O O O O O
0.52 0.77 0.85 1.23 1.48
25 25 25 25 25
34 49 47 60 70
1 2 3 4 5
118
1 2 3 4 5
O O O O O
0.50 0.89 0.96 1.47 1.83
25 28 32 32 32
34 49 42 60 70
75▲◆■
1 2 3 4 5
O O O O O
0.53 1.02 1.08 1.76 1.92
24 24 24 24 28
80▲◆■
1 2 3 4 5
O O O O O
0.56 1.04 1.19 1.89 2.00
1 2 3 4 5
O O O O O
90
1 2 3 4 5
95
Type
50◆
1 2 3
O O O
56◆
1 2 3
63◆
71▲◆■
100
for section A/13
No. of grooves z Face width b2 (mm)
58
Distance through hub l (mm)
Distance through hub l (mm)
No. of grooves
85▲◆■
▲
Finished bore dmax (mm)
Finished bore dmax (mm)
Datum diameter dd (mm)
◆ for
Weight (≈ kg)
section AX/X13
■ for
No. of grooves
Type
Weight (≈ kg)
dd + 4 mm
section XPA
1
2
3
4
5
20
35
50
65
80
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Hub position: flush one side Material: GG 20 – DIN 1691
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Plain Boring – Grooves According to BS 3790/DIN 2211
Section SPA/A/13 Datum diameter dd (mm)
No. of grooves
Weight (≈ kg)
Type
Finished bore dmax (mm)
Distance through hub l (mm)
Datum diameter dd (mm)
No. of grooves
Type
Weight (≈ kg)
Finished bore dmax (mm)
Distance through hub l (mm)
180
1 2 3 4 5
x x x x x
2.02 3.15 3.60 4.65 6.13
38 42 42 48 48
36 49 42 60 70
315
1 2 3 4 5
x x x x x
4.78 6.60 8.75 11.80 12.50
48 48 55 55 60
44 53 47 60 70
190
1 2 3 4 5
x x x x x
2.02 3.20 4.00 5.24 6.31
38 42 42 48 48
36 49 42 60 70
355
1 2 3 4 5
x x x x x
5.50 7.70 9.55 11.80 12.85
48 55 55 55 60
44 53 47 60 70
200
1 2 3 4 5
x x x x x
2.40 2.85 4.21 4.95 6.45
38 42 48 55 60
36 49 42 60 70
400
1 2 3 4 5
x x x x x
6.85 8.80 10.95 12.40 15.90
50 55 60 60 60
50 53 47 67 82
212
1 2 3 4 5
x x x x x
2.70 3.40 4.40 5.68 6.85
40 42 42 42 42
36 49 42 60 70
450
1 2 3 4 5
x x x x x
7.50 9.40 12.15 14.20 18.30
55 55 60 65 65
50 53 47 67 82
225
1 2 3 4 5
x x x x x
2.75 3.87 4.60 6.50 7.25
40 42 42 42 42
36 49 42 60 70
500
1 2 3 4 5
x x x x x
10.50 10.70 13.45 16.25 22.80
55 55 60 65 65
50 55 60 67 82
236
1 2 3 4 5
x x x x x
3.30 4.10 4.90 6.20 7.50
38 42 48 55 55
36 49 42 60 70
560
1 2 3 4 5
x x x x x
14.00 13.10 15.60 19.40 24.50
55 55 60 65 65
60 60 74 67 82
250
1 2 3 4 5
x x x x x
3.40 4.32 5.30 7.00 7.85
42 48 48 55 60
36 49 42 60 70
280
1 2 3 4 5
x x x x x
3.90 5.35 6.50 8.52 9.90
42 48 48 55 60
44 53 47 60 70
300
1 2 3 4 5
x x x x x
4.25 5.90 7.50 9.82 11.30
48 48 55 55 60
44 53 47 60 70
dd + 4 mm No. of grooves z Face width b2 (mm)
dd + 4 mm
1
2
3
4
5
20
35
50
67
82
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Hub position: flush one side Material: GG 20 – DIN 1691
59
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Plain Boring – Grooves According to BS 3790/DIN 2211
Section SPB/B/17 Finished bore dmax (mm)
Distance through hub l (mm)
0.61 1.00 1.00
20 20 22
41 60 62
O O O
0.76 1.20 1.20
20 20 22
41 60 62
1 2 3
O O O
0.79 1.31 1.60
22 22 22
41 60 55
75◆
1 2 3
O O O
0.82 1.42 1.85
25 25 25
41 60 62
80◆
1 2 3 4 5
O O O O O
1.03 1.65 2.05 2.40 2.73
28 28 28 28 28
41 60 55 70 80
85◆
1 2 3 4 5
O O O O O
1.10 1.70 2.15 2.70 3.00
30 30 30 30 30
41 60 55 70 75
90◆
1 2 3 4 5
O O O O O
1.17 1.80 2.30 3.05 3.30
32 38 38 38 38
41 60 55 70 75
95◆
1 2 3 4 5
O O O O O
1.25 2.00 2.50 2.90 3.60
35 38 38 38 38
41 60 67 70 75
1 2 3 4 5 6
O O O O O O
1.32 2.11 2.85 3.81 4.45 5.20
32 38 38 38 38 38
41 60 55 70 75 124
1 2 3 4 5 6
O O O O O O
1.45 2.00 3.00 4.30 5.10 6.00
28 28 30 30 32 32
41 60 55 70 75 124
Datum diameter dd (mm)
No. of grooves
Type
56◆
1 2 3
O O O
63◆
1 2 3
71◆
100◆
106◆
▲
for section B/17
No. of grooves z Face width b2 (mm)
60
◆ for
Weight (≈ kg)
section BX/X17
■ for
Datum diameter dd (mm)
No. of grooves
Type
Weight (≈ kg)
Finished bore dmax (mm)
Distance through hub l (mm)
112▲◆■
1 2 3 4 5 6
O O O O O O
1.53 2.35 3.10 4.75 5.61 6.15
32 38 38 42 42 42
41 60 55 67 75 85
118▲◆■
1 2 3 4 5 6
O O O O O O
1.57 2.43 3.20 6.20 7.20 6.60
32 38 42 42 42 42
41 60 55 70 75 85
125▲◆■
1 2 3 4 5 6
O O O O O O
1.66 2.55 3.28 4.74 8.60 8.00
32 38 42 42 42 48
41 60 55 70 75 85
132▲◆■
1 2 3 4 5 6
O O O O O O
1.88 2.63 3.49 6.30 9.40 8.50
30 30 42 42 42 42
41 60 55 70 75 85
140
1 2 3 4 5 6
O O O O O O
2.10 2.90 3.90 6.92 7.58 11.40
32 38 42 42 48 48
41 60 55 70 75 85
150
1 2 3 4 5 6
O O O O O O
2.43 3.24 4.28 6.76 8.43 12.10
32 38 42 42 48 48
43 48 60 70 75 85
160
1 2 3 4 5 6
x x x O O O
2.50 3.32 4.60 7.01 9.35 12.85
38 42 48 48 48 55
43 48 60 70 75 85
170
1 2 3 4 5 6
x x x O O O
2.85 3.44 4.89 7.20 8.90 13.10
42 42 42 48 48 48
43 48 60 70 75 85
dd + 5,5 mm
section XPB
1
2
3
4
5
6
25
44
63
86
105
124
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Hub position: flush one side Material: GG 20 – DIN 1691
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Plain Boring – Grooves According to BS 3790/DIN 2211
Section SPB/B/17 Datum diameter dd (mm)
No. of grooves
Type
Weight (≈ kg)
Finished bore dmax (mm)
Distance through hub l (mm)
Datum diameter dd (mm)
No. of grooves
Type
Weight (≈ kg)
Finished bore dmax (mm)
Distance through hub l (mm)
180
1 2 3 4 5 6
x x x x O O
3.10 3.90 5.28 7.42 9.05 10.80
38 42 48 48 55 60
43 48 60 70 75 85
315
1 2 3 4 5 6
x x x x x x
6.40 8.22 12.90 13.00 17.60 20.60
48 55 55 60 65 75
49 55 67 80 80 90
190
1 2 3 4 5 6
x x x x O O
3.19 4.22 5.49 7.69 9.22 11.95
42 42 42 48 50 55
43 48 60 70 75 85
355
1 2 3 4 5 6
x x x x x x
7.00 9.70 13.40 18.25 18.75 19.75
48 55 55 60 65 75
49 55 67 80 75 90
200
1 2 3 4 5 6
x x x x O O
3.40 4.45 5.85 7.98 9.50 12.20
38 42 48 50 55 60
43 48 60 60 80 90
400
1 2 3 4 5 6
x x x x x x
8.46 10.00 14.30 18.50 22.50 28.00
50 55 60 65 70 75
49 55 67 80 85 90
212
1 2 3 4 5 6
x x x x x O
3.75 4.66 6.15 7.70 10.30 13.51
42 42 48 50 50 55
43 48 60 70 80 90
450
1 2 3 4 5 6
x x x x x x
9.86 10.87 15.05 20.50 26.00 28.90
50 55 60 65 70 75
55 55 67 80 80 90
225
1 2 3 4 5 6
x x x x O O
4.00 5.40 6.90 8.64 11.72 14.75
42 42 48 55 50 55
43 48 60 70 90 90
500
1 2 3 4 5 6
x x x x x x
10.70 13.70 15.20 21.30 30.00 33.80
50 60 65 70 75 80
55 59 67 80 80 90
250
1 2 3 4 5 6
x x x x x x
4.20 6.10 8.60 9.70 13.20 17.00
42 48 55 60 65 65
43 55 60 70 80 90
560
2 3 4 5 6
x x x x x
15.00 24.20 26.20 34.40 39.00
60 65 70 75 80
55 67 80 80 90
280
1 2 3 4 5 6
x x x x x x
5.70 7.04 9.67 11.52 15.50 18.00
48 48 55 60 65 65
49 55 60 70 80 90
630
2 3 4 5 6
x x x x x
20.20 27.00 30.80 37.20 44.00
60 65 75 80 90
80 80 86 90 100
300
1 2 3 4 5 6
x x x x x x
5.90 7.50 10.50 12.40 15.40 18.25
48 48 55 60 65 70
49 55 67 80 80 90
dd + 5,5 mm No. of grooves z Face width b2 (mm)
1
2
3
4
5
6
25
44
63
86
105
124
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Hub position: flush one side Material: GG 20 – DIN 1691
61
Technical Manual V-Belts
Standard Range optibelt KS V-Grooved Pulleys for Plain Boring – Grooves According to BS 3790/DIN 2211
Section SPC/C/22 No. of grooves
Type
Weight (≈ kg)
Finished bore dmax (mm)
Distance through hub l (mm)
Datum diameter dd (mm)
180▲◆■
1 2 3 4 5 6
O O O O O O
4.20 7.20 10.40 10.50 18.00 23.70
40 50 55 55 60 65
54 64 90 95 100 115
200▲◆■
1 2 3 4 5 6
O O O O O O
4.80 7.80 10.60 11.20 15.40 27.00
40 50 55 60 65 70
54 64 90 95 100 125
1 2 3 4 5 6
x x x x x x
5.50 7.80 10.60 13.10 16.70 35.00
48 52 52 55 60 60
54 64 90 95 100 115
250
1 2 3 4 5 6
x x x x x x
7.30 8.80 11.10 15.30 19.00 23.70
52 52 65 70 75 60
54 64 90 95 100 115
280
1 2 3 4 5
x x x x x
8.70 10.90 15.60 17.50 20.50
52 55 70 75 75
54 64 90 95 100
315
1 2 3 4 5 6
x x x x x x
9.10 13.00 17.10 20.00 24.70 31.20
52 55 70 75 80 85
54 74 90 95 100 115
335
2 3 4 5 6
x x x x x
14.00 18.30 22.40 28.30 34.40
55 55 60 65 75
74 90 95 100 115
355
2 3 4 5 6
x x x x x
15.20 19.20 25.80 32.00 36.20
60 70 70 75 75
74 90 95 100 115
400
3 4 5
x x x
20.60 28.00 32.00
70 70 75
90 105 100
Datum diameter dd (mm)
225
▲
for section C/22
No. of grooves z Face width b2 (mm)
62
◆ for
section CX/X22
■ for
No. of grooves
Type
Weight (≈ kg)
Finished bore dmax (mm)
Distance through hub l (mm)
450
2 3 4 5 6
x x x x x
21.10 26.30 31.10 42.20 48.50
70 75 75 80 80
80 90 105 110 120
500
3 4 5 6
x x x x
28.40 34.10 48.20 52.50
75 75 80 80
90 105 110 120
560
3 4 5 6
x x x x
31.10 39.00 54.10 61.50
75 75 85 85
90 105 110 120
630
3 4 5 6
x x x x
38.50 48.10 62.20 73.20
80 80 85 85
90 105 110 120
section XPC
1
2
3
4
5
6
38
64
90
116
142
168
● Solid pulley O Plate pulley (with or without lightening holes) ✕ Spoked pulley Hub position: flush one side Material: GG 20 – DIN 1691
Technical Manual V-Belts
Standard Range optibelt RE Variable Speed Pulleys
Variable speed pulleys for plain bored DA (mm)
D (mm)
Finished bore dmax (mm)
B (mm)
R 083-1
83
40
26
R 093-1
93
45
R 108-1
108
R 121-1
Material: Al
Section
dd min (mm)
dd max (mm)
Variation factor
Weight (≈ kg)
48
SPZ Z/10
63 57
79 77
1.25 1.35
0.90
28
48
SPZ SPA Z/10 A/13
67 66 61 60
89 87 87 85
1.33 1.32 1.43 1.42
1.03
50
28
48
SPZ SPA Z/10 A/13
79 81 73 75
94 102 93 100
1.19 1.26 1.27 1.33
1.65
121
55
28
48
SPZ SPA Z/10 A/13
92 94 86 88
107 115 106 113
1.16 1.22 1.23 1.28
1.75
R 138-1
138
55
38
48
SPZ SPA SPB Z/10 A/13 B/17
109 111 116 103 105 109
124 132 131 123 130 128
1.14 1.19 1.13 1.19 1.24 1.17
2.60
R 160-1
160
80
52
48
SPZ SPA SPB Z/10 A/13 B/17
119 121 126 113 115 119
134 143 153 133 141 150
1.13 1.18 1.21 1.18 1.23 1.26
4.50
R 180-1
180
80
52
48
SPA SPB A/13 B/17
141 146 135 139
163 173 161 170
1.16 1.18 1.19 1.22
5.40
Designation
Al = Aluminium
Rights to technical modification reserved
63
Technical Manual V-Belts
Standard Range optibelt RE Variable Speed Pulleys
Variable speed pulleys for plain bored DA (mm)
D (mm)
Finished bore dmax (mm)
B (mm)
R 083-2
83
40
26
R 093-2
93
45
R 108-2
108
R 121-2
Section
dd min (mm)
dd max (mm)
Variation factor
Weight (≈ kg)
76
SPZ Z/10
63 57
79 77
1.25 1.35
1.50
28
76
SPZ SPA Z/10 A/13
67 66 61 60
89 87 87 85
1.33 1.32 1.43 1.42
1.75
50
28
76
SPZ SPA Z/10 A/13
79 81 73 75
94 102 93 100
1.19 1.26 1.27 1.33
2.15
121
55
28
76
SPZ SPA Z/10 A/13
92 94 86 88
107 115 106 113
1.16 1.22 1.23 1.28
2.70
R 138-2
138
55
38
76
SPZ SPA SPB Z/10 A/13 B/17
109 111 116 103 105 109
124 132 131 123 130 128
1.14 1.19 1.13 1.19 1.24 1.17
4.50
R 160-2
160
80
52
90
SPZ SPA SPB Z/10 A/13 B/17
119 121 126 113 115 119
134 143 153 133 141 150
1.13 1.18 1.21 1.18 1.23 1.26
7.50
R 180-2
180
80
52
90
SPA SPB A/13 B/17
141 146 135 139
163 173 161 170
1.16 1.18 1.19 1.22
9.20
Designation
64
Material: Al
Al = Aluminium
Rights to technical modification reserved
Technical Manual V-Belts
Standard Range optibelt RE Variable Speed Pulleys
Variable speed pulleys for taper bushes DA (mm)
D (mm)
Finished bore dmax (mm)
B (mm)
TB-R 092-1
92
46
25
31
TB-R 108-1
108
50
28
TB-R 120-1
120
55
TB-R 138-1
138
TB-R 159-1
TB-R 180-1
Designation
Material: GG Weight without bush (≈ kg)
Taperbush
1.48 1.60
0.85
1008
93 102 92 100 97
1.24 1.34 1.35 1.43 1.11
1.20
1108
87 88 80 82 98
105 114 104 112 108
1.20 1.29 1.30 1.36 1.10
1.50
1108
SPZ SPA Z/10 A/13 B/17
105 106 98 100 116
123 132 122 130 126
1.17 1.24 1.24 1.30 1.09
2.20
1215
39
SPZ SPA Z/10 A/13 B/17
126 128 122 128 125
144 154 152 152 148
1.14 1.20 1.24 1.18 1.18
3.50
1615
45
SPZ SPA SPB Z/10 A/13 B/17
133 134 137 128 128 132
151 160 173 151 158 170
1.14 1.19 1.26 1.17 1.23 1.29
4.20
1615
dd min (mm)
dd max (mm)
SPZ Z/10
60 55
89 88
35
SPZ SPA Z/10 A/13 B/17
75 76 68 70 87
28
35
SPZ SPA Z/10 A/13 B/17
65
32
38
159
75
42
180
75
42
Profil
Taper bush
1008
1108
1215
1615
bore d2 (mm) from ... to ...
10-25
10-28
11-32
14-42
Variation faktor
GG = cast iron Rights to technical modification reserved Bore diameter d2 see page 66
65
Technical Manual V-Belts
Standard Range optibelt TB Taper Bushes
Taper bushes with metrical bore, grooves according to DIN 6885 Part 1 Taper bush 1008 1108 1210 1215 1310 1610 1615 2012 2517 3020 3030 3525 3535 4040 4545 5050 Bore diameter d2 (mm)
Tightening torque (Nm)
10 11 12 14 16 18 19 20 22 24 25
5.7
10 11 12 14 16 18 19 20 22 24 25 28
11 12 14 16 18 19 20 22 24 25 28 30 32
5.7
20
11 12 14 16 18 19 20 22 24 25 28 30 32
20
14 16 18 19 20 22 24 25 28 30 32 35
14 16 18 19 20 22 24 25 28 30 32 35 38 40 42
20
20
14 16 18 19 20 22 24 25 28 30 32 35 38 40 42
20
14 16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50
16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55 60
25 28 30 32 35 38 40 42 45 48 50 55 60 65 70 75
31
49
92
35 38 40 42 45 48 50 55 60 65 70 75
35 38 40 42 45 48 50 55 60 65 70 75 80 85 90
35 38 40 42 45 48 50 55 60 65 70 75 80 85 90
40 42 45 48 50 55 60 65 70 75 80 85 90 95 100
55 60 65 70 75 80 85 90 95 100 105 110
70 75 80 85 90 95 100 105 110 115 120 125
Material: GG 20 92
115
115
172
195
275
Bush length (mm)
22.3 22.3 25.4 38.1 25.4 25.4 38.1 31.8 44.5 50.8 76.2 63.5 88.9 101.6 114.3 127.0
Weight for d2 min (â&#x2030;&#x2C6; kg)
0.12 0.16 0.28 0.39 0.32 0.41 0.60 0.75 1.06 2.50 3.75 3.90 5.13 7.68 12.70 15.17
This is a shallow keyway bore.
Shallow keyway taper bushes Bore diameter
Groove width b (mm)
Groove depth
Bore diameter
t2 (mm)
d2 (mm)
Groove width b (mm)
Groove depth
d2 (mm)
24 25
8 8
2.0 1.3
28 42
8 12
2.0 2.2
t2 (mm)
Taper bushes with inch bore, keyways according to British Standard BS 46 Part 1 Taper bush 1008 1108 1210 1215 1310 1610 1615 2012 2517 3020 3030 3525 3535 4040 4545 5050 Bore diameter d2 (inch)
3/8*
3/8*
1/2
5/8
3/4
1/2
1/2
3/4
3/4
5/8 7/8
1
7/8
5/8*
1/2*
7/8
3/4*
5/8
3/4
7/8
1 11/8 11/4
1
11/8
1 11/8 * 11/4
1/2
5/8*
5/8
7/8*
7/8
1* 11/8 11/4 13/8
3/4
1
11/8
11/4 13/8 11/2 15/8
1/2 5/8 3/4
7/8*
5/8*
3/4 7/8
1 1 11/8 11/8 11/4 11/4 13/8 13/8 11/2 11/2 15/8 15/8 * 13/4 17/8 2
3/4 7/8
1 11/8 11/4 13/8 11/2 15/8 13/4 17/8 2 21/8 21/4 23/8 21/2
11/4 13/8 11/2 15/8 13/4* 17/8 2 21/8* 21/4 23/8 21/2 25/8 23/4 27/8 3
11/4 13/8 11/2 15/8 13/4* 17/8 2 21/8* 21/4 23/8 21/2 25/8* 23/4* 27/8 3
11/2 15/8 13/4 17/8 2 1 2 /8 21/4 23/8 21/2 25/8 23/4 27/8 3 31/8 31/4 33/8 31/2
11/2 15/8 13/4 17/8 2 1 2 /8 21/4 23/8 21/2 25/8 23/4 27/8 3 31/8 31/4 33/8 31/2
13/4* 17/8* 2* 21/8* 21/4* 23/8* 21/2* 25/8* 23/4* 27/8* 3* 31/8* 31/4* 33/8* 31/2* 33/4 * 4 *
21/4* 3* 23/8* 31/4* 21/2* 31/2* 23/4* 33/4* 27/8* 4* 3* 41/4* 31/4* 41/2* 33/8* 43/4* 31/2* 5 * 33/4* 4* 41/4 * 41/2 *
Material: GG 20 Tightening torque (Nm)
5.7
5.7
20
20
20
20
20
31
49
92
92
115
115
172
195
275
Bush length (mm)
22.3 22.3 25.4 38.1 25.4 25.4 38.1 31.8 44.5 50.8 76.2 63.5 88.9 101.6 114.3 127.0
Weight for d2 min (â&#x2030;&#x2C6; kg)
0.12 0.16 0.28 0.39 0.32 0.41 0.60 0.75 1.06 2.50 3.75 3.90 5.13 7.68 12.70 15.17
66
GG = cast iron * Non stock item
This is a shallow keyway bore.
Technical Manual V-Belts
Drive Calculation Abbreviations Used in Formulae
a
= drive centre distance provisional
(mm)
anom = drive centre distance calculated with a standard belt length
(mm)
bd
= datum width
(mm)
b1
= top width
(mm)
c1
= arc of contact correction factor
c2
= service factor
c3
= belt length factor
LdSt
= standard belt datum length
Ldth
= calculated belt datum length
ng
= speed of the larger pulley
(min-1)
nk
= speed of the smaller pulley
(min-1)
n1
= speed of the driver pulley
(min-1)
n2
= speed of the driven pulley
(min-1)
= motor or normal running power
(kW*)
PB
= design power
(kW*)
PN
= nominal power rating per belt
(kW*)
Sa
= minimum static shaft loading
T
= minimum static tension per belt
v
= belt speed
= number of idlers factor
ddg
= datum diameter of large pulley (selection to BS 3790/DIN 2211)
(mm)
ddk
= datum diameter of small pulley (selection to BS 3790/DIN 2211)
(mm)
dd1
= datum diameter of the driver pulley
(mm)
Ud
= datum circumference of pulley
dd2
= datum diameter of the driven pulley
(mm)
x
E
= belt deflection per 100 mm span length
(mm)
= minimum allowance above centre distance anom for belt stretch and wear
Ea
= belt deflection for a given span length
(mm)
y
f
= load used to set belt tension
(N)
fB
= flex rate
(s-1)
i
= drive ratio
α
= minimum allowance below centre distance anom for easy belt fitting β = number of belts 2 = angle of belt drive = 90° –
k
= constant for calculating centrifugal force in belt set
β
= arc of contact on small pulley
= span length
(mm)
LiSt
= standard inside belt length
(mm)
Lith
= calculated inside belt length
(mm)
(mm)
P
c4
L
(mm)
z
(N) (N) (m/s)
(mm) (mm) (°) (°)
* 1 kW = 1 kNm/s
The terms pitch diameter (dw), pitch length (Lw) and pitch circumference (Uw) used previously have been changed to datum diameter (dd), datum length (Ld) and datum circumference (Ud) in order to bring them into line with current standard terminology.
anom
67
Technical Manual V-Belts
Drive Calculation Optibelt Nominal Power Rating PN – Arc of Contact Correction Factor c1
The Optibelt nominal power ratings PN in Tables 27 to 55 are based upon an internationally recognised basic formula and a theoretical belt life of 25,000 hours under ideal conditions. This formula contains material constants that take into account the quality of the raw materials used and make allowances for production methods. The special qualities of Optibelt V-belts make it possible for example to use other material constants than those given in BS/DIN Standards. As a result, the nominal Optibelt power ratings PN significantly exceed the ratings given, for wedge belts in BS 3790 and DIN 7753 Part 2 and for classical V-belts in BS 3790 and DIN 2218, for the same theoretical belt life. The nominal power ratings PN are based on the smallest loaded pulley in the drive system. The belt power rating value PN is calculated taking into account ● the datum diameter of the smaller pulley ddk, ● the speed of the smaller pulley nk, ● the drive ratio i, ● an assumed arc of contact at the smaller pulley of β = 180°, ● a reference belt length for the specific belt section. In order to account for the true drive data, based on the arc of contact and the belt lengths employed, correction factors for the arc of contact c1 and length c3 have been introduced. If required, drive calculations can be provided for any theoretical belt life. Intermediate values for nominal power rating, arc of contact and length correction factors can be found by linear interpolation.
68
The factor c1 corrects the power rating PN, when the arc of contact is smaller than 180°, as the PN value was calculated on the arc of contact β = 180° on the smaller pulley.
Table 17 ddg – ddk anom
웁≈
c1
0 0.05 0.10 0.15 0.20
180° 177° 174° 171° 168°
1.00 1.00 1.00 1.00 0.99
0.25 0.30 0.35 0.40 0.45
165° 162° 160° 156° 153°
0.99 0.99 0.99 0.99 0.98
0.50 0.55 0.60 0.65 0.70
150° 147° 144° 141° 139°
0.98 0.98 0.98 0.97 0.97
0.75 0.80 0.85 0.90 0.95
136° 133° 130° 126° 123°
0.97 0.96 0.96 0.96 0.95
1.00 1.05 1.10 1.15 1.20
119° 115° 112° 109° 106°
0.94 0.94 0.93 0.93 0.92
1.25 1.30 1.35 1.40 1.45
103° 100° 96° 92° 88°
0.91 0.91 0.90 0.88 0.87
1.50 1.55 1.60
84° 80° 77°
0.86 0.84 0.83
Technical Manual V-Belts
Drive Calculation Service Factor c2
The service factor c2 takes account of the daily operating time and of the type of driver and driven machine. It applies exclusively to two-pulley drives. Other arrangements such as drives with tension and guide idlers have not been taken into consideration. Pages 115-117 provide the relevant basic design guidelines for drives with more than two pulleys. Adverse operating conditions (e.g. aggressive dust, particularly high ambient temperatures or the effects of various media) have not been taken into account. As it is practically impossible to cover every conceivable combination of driver/driven machine/operating conditions in a summary that complies with the relevant standards, the service factors are approximate values.
In special cases, e.g. increased starting torque (direct on-line starting of fans), on drives with frequent starts and stops, on systems subject to exceptional shock loads, or when signiďŹ cant masses are to be accelerated or braked, the service factor must be increased. Empirical value: With a starting torque > 1.8, this ďŹ gure is to be divided by 1.5 in order to calculate the minimum service factor c2. Example: Starting torque MA = 3.0; c2 selected 2.0. Please consult our Applications Engineering Department for the solution of special problems.
Table 18 Types of Prime Movers
Types of Driven Machine
A. c. motors and three-phase squirrel cage motors with a normal starting torque (up to 1.8 times nominal torque), e.g. synchronous motors and single-phase motors with starting-aid phase, three-phase squirrel cage motors with direct start, star-delta connection or slip ring starters; direct-current shunt-wound motors, combustion engines and turbines n > 600 rpm
A. c. motors and three-phase squirrel cage motors with high starting torque (over 1.8 times nominal torque), e.g. single-phase motors with high starting torque; direct-current series-wound motors with series connection and compound; combustion engines and turbines n â&#x2030;¤ 600 rpm
Service factor c2 for daily operation time of (hours) up to 10 over 10 below 16 over 16
Service factor c2 for daily operation time of (hours) up to 10 over 10 below 16 over 16
Light drives Centrifugal pumps and compressors, belt conveyors (lightweight materials), fans and pumps up to 7.5 kW
1.1
1.1
1.2
1.1
1.2
1.3
1.1
1.2
1.3
1.2
1.3
1.4
1.2
1.3
1.4
1.4
1.5
1.6
1.3
1.4
1.5
1.5
1.6
1.8
Medium drives Plate cutters, presses, chain and belt conveyors (heavy materials), screen vibrators, generators and exciters, bakery machinery, machine tools (lathes and grinders), laundry machinery, printing machines, fans and pumps over 7.5 kW
Heavy-duty drives Crushing plants, piston compressors, heavy-duty conveyors, directional throw conveyors, push conveyors (screw, plate belts, bucket and shovel conveyors), lifts, brick presses, textile machinery, paper machinery, piston pumps, dredger pumps, saw mills, hammer mills Very heavy duty drives Heavy-duty mills, stone crushers, calenders, mixers, winches, cranes, dredgers, heavy duty wood working machinery
69
Technical Manual V-Belts
Drive Calculation Length Factor c3 for optibelt Wedge Belts and Kraftbands
The length factor c3 takes into account the ďŹ&#x201A;ex rate of the belt based on the reference length for the particular belt section.
This results in the following relationships: Belt length > reference length Belt length = reference length Belt length < reference length
c3 > 1,0 c3 = 1,0 c3 < 1,0
Table 19 Section SPZ, XPZ Datum length (mm)
70
Section SPA, XPA
Section SPB, XPB
c3
Datum length (mm)
c3
Datum length (mm)
c3
630 670 710 750 800
0.83 0.84 0.85 0.86 0.87
800 850 900 950 1000
0.81 0.82 0.83 0.84 0.85
1250 1320 1400 1500 1600
0.83 0.84 0.85 0.86 0.87
850 900 950 1000 1060
0.88 0 89 0.90 0.91 0.92
1060 1120 1180 1250 1320
0.86 0.86 0.87 0.88 0.89
1700 1800 1900 2000 2120
0.88 0.89 0.90 0.91 0.92
1120 1180 1250 1320 1400
0.93 0.94 0.95 0.96 0.98
1400 1500 1600 1700 1800
0.90 0.91 0.92 0.93 0.94
2240 2360 2500 2650 2800
0.93 0.93 0.94 0.95 0.96
1500 1600 1700 1800 1900
0.99 1.00 1.01 1.02 1.03
1900 2000 2120 2240 2360
0.95 0.96 0.97 0.98 0.99
3000 3150 3350 3550 3750
0.97 0.98 0.99 1.00 1.01
2000 2120 2240 2360 2500
1.04 1.05 1.06 1.07 1.08
2500 2650 2800 3000 3150
1.00 1.01 1.02 1.03 1.04
4000 4250 4500 4700 5000
1.02 1.03 1.04 1.04 1.05
2650 2800 3000 3150 3350
1.09 1.10 1.11 1.12 1.13
3350 3550 3750 4000 4250
1.05 1.06 1.07 1.08 1.09
5300 5600 6000 6300 6700
1.06 1.07 1.08 1.09 1.10
3550 3750 4000 4250 4500
1.15 1.16 1.17 1.18 1.19
4500 4750 5000 5300 5600
1.10 1.11 1.12 1.13 1.14
7100 7500 8000 8500 9000
1.11 1.12 1.13 1.14 1.15
6000
1.15
9500 10000
1.16 1.17
Section SPC, XPC Datum length (mm)
c3
2000 2120 2240 2360 2500 2650 2800 3000 3150 3350
0.85 0.86 0.86 0.87 0.88 0.89 0.90 0.91 0.91 0.92
3550 3750 4000 4250 4500
0.93 0.94 0.95 0 96 0.97
4750 5000 5300 5600 6000
0.98 0.98 0.99 1.00 1.01
6300 6700 7100 7500 8000
1.02 1.03 1.04 1.04 1.05
8500 9000 9500 10000 10600
1.06 1.07 1.08 1.09 1.09
11200 11800 12500 13200 14000
1.10 1.11 1.12 1.13 1.14
15000
1.15
Technical Manual V-Belts
Drive Calculation Length Factor c3 for optibelt Wedge Belts and Kraftbands
Table 20 Section 3V/9N, 3VX/9NX 3V/9J, 3VX/9JX Belt designation
Outside length (mm)
c3
Section 5V/15N, 5VX/15NX 5V/15J, 5VX/15JX Belt designation
Section 8V/25N 8V/25J
Outside length (mm)
c3
Belt designation
Outside length (mm)
c3
3V 3V 3V 3V 3V
265 280 300 315 335
673 711 762 800 851
0.84 0.85 0.86 0.87 0.88
5V 5V 5V 5V 5V
500 530 560 600 630
1270 1346 1422 1524 1600
0.84 0.85 0.85 0.87 0.87
8V 1000 8V 1060 8V 1120 8V 1180 8V 1250
2540 2692 2845 2997 3175
0.87 0.87 0 88 0.89 0.90
3V 3V 3V 3V 3V
355 375 400 425 450
902 952 1016 1079 1143
0.90 0.91 0.92 0.93 0.94
5V 5V 5V 5V 5V
670 710 750 800 850
1702 1803 1905 2032 2159
0.88 0.89 0.90 0.91 0.92
8V 1320 8V 1400 8V 1500 8V 1600 8V 1700
3353 3556 3810 4064 4318
0.91 0.92 0.93 0.93 0.94
3V 3V 3V 3V 3V
475 500 530 560 600
1206 1270 1346 1422 1524
0.95 0.96 0.97 0.98 0.99
5V 900 5V 950 5V 1000 5V 1060 5V 1120
2286 2413 2540 2692 2845
0.93 0.94 0.95 0.96 0.96
8V 1800 8V 1900 8V 2000 8V 2120 8V 2240
4572 4826 5080 5385 5690
0.95 0.96 0.97 0.98 0.98
3V 3V 3V 3V 3V
630 670 710 750 800
1600 1702 1803 1905 2032
1.00 1.01 1.02 1.03 1.04
5V 1180 5V 1250 5V 1320 5V 1400 5V 1500
2997 3175 3353 3556 3810
0.97 0.98 0.99 1.00 1.01
8V 2360 8V 2500 8V 2650 8V 2800 8V 3000
5994 6350 6731 7112 7620
0.99 1.00 1.01 1.02 1.03
3V 850 3V 900 3V 950 3V 1000 3V 1060
2159 2286 2413 2540 2692
1.05 1.07 1.07 1.08 1.09
5V 1600 5V 1700 5V 1800 5V 1900 5V 2000
4064 4318 4572 4826 5080
1.02 1.03 1.04 1.05 1.06
8V 3150 8V 3350 8V 3550 8V 3750 8V 4000
8001 8509 9017 9525 10160
1.03 1.04 1.05 1.06 1.07
3V 1120 3V 1180 3V 1250 3V 1320 3V 1400
2845 2997 3175 3353 3556
1.11 1.11 1.13 1.14 1.15
5V 2120 5V 2240 5V 2360 5V 2500 5V 2650
5385 5690 5994 6350 6731
1.07 1.07 1.08 1.09 1.10
8V 4250 8V 4500 8V 4750 8V 5000 8V 5300
10795 11430 12065 12700 13462
1.08 1.09 1.09 1.10 1.11
3V 1500 3V 1600 3V 1700 3V 1800 3V 1900
3810 4064 4318 4572 4826
1.16 1.17 1.18 1.19 1.20
5V 2800 5V 3000 5V 3150 5V 3350 5V 3550
7112 7620 8001 8509 9017
1.11 1.12 1.13 1.14 1.15
8V 5600 8V 6000 8V 6300
14224 15240 16002
1.12 1.13 1.13
3V 2000
5080
1.21
5V 3750 5V 4000
9525 10160
1.16 1.17
71
Technical Manual V-Belts
Drive Calculation Length Factor c3 for optibelt Classical Belts and Kraftbands
Table 21 Section 5* Datum length (mm)
c3
172 202 248 277 292 312 327 334 347 364 387 418 437 487 512 524 542 566 612
0.87 0.91 0.95 0.97 0.99 1.00 1.01 1.01 1.02 1.03 1.05 1.06 1.07 1.10 1.11 1.11 1.12 1.13 1.15
Section Y/6* Datum length (mm)
c3
280 295 315 330 350 370 390 415 440 465 490 515 555 615 725 765 865
0.97 0.99 1.00 1.01 1.02 1.04 1.05 1.06 1 07 1.09 1.10 1.11 1.13 1.15 1.19 1.20 1.23
Section 8 Datum length (mm)
299* 334* 374* 419* 444* 469* 494* 549* 579* 594* 619* 649* 689* 729* 769* 819* 869 894 919 969 1019 1139 1269 1339 1419 1519
Section C/22, CX/X22 1458 1558 1658 1858 1958 2058 2178 2298 2418 2558 2708 2858 3058 3208 3608 3808 4058 4308 4558 4808 72
0.80 0.81 0.83 0.85 0.86 0.87 0.88 0.89 0.90 0.92 0.93 0.94 0.95 0.96 0.99 1.00 1.01 1.03 1.04 1.05
5058 5358 5658 6058 6358 6758 7158 7558 8058 9058 10058
1.06 1.07 1.09 1.10 1.11 1.13 1.14 1.15 1.17 1.19 1.22
c3
0.86 0.88 0.91 0.93 0.94 0.95 0.97 0.99 1.00 1.01 1.01 1.02 1.04 1.05 1.06 1.08 1.09 1.10 1.10 1.11 1.13 1.15 1.18 1.19 1.20 1.22
Section Z/10, ZX/X10 Section A/13, AX/X13 Section B/17, BX/X17 Datum length (mm)
422* 447* 472* 497* 522* 552* 582* 622 652 692 732 822 847 887 922 947 997 1022 1082 1142 1172 1202 1272 1342 1422 1522 1622
c3
0.86 0.87 0.88 0.89 0.90 0.92 0.93 0.94 0.95 0.96 0.98 1.00 1.01 1.02 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.08 1.10 1.11 1.12 1.14 1.15
Datum length (mm)
c3
660 740 780 830 880 930 980 1030 1090 1150 1210 1280 1350 1430 1530 1630 1730 1830 1930 2030 2150 2270 2390 2530 2680 2830 3030 3180 3380 3780 4030 4530 5030
0.80 0.82 0.83 0.85 0.86 0.87 0.88 0.89 0.90 0.91 0.92 0.94 0.95 0.96 0.97 0.99 1.00 1.01 1.02 1.03 1.05 1.06 1.07 1.08 1.10 1.11 1.12 1.14 1.15 1.17 1.19 1.22 1.24
Section 25 1311 1461 1561 1661 1761 1861 1961 2061 2181 2301 2421 2561 2711 2861 3061 3211 3411 3611 3811 4061
0.75 0.77 0.78 0.79 0.80 0.81 0.82 0.83 0.85 0.86 0.87 0.88 0.89 0.90 0.92 0.93 0.94 0.95 0.96 0.98
4311 4561 4811 5061 5361 5661 6061 6361 6761 7161 7561 8061 9061 10061 11261 12561
Datum length (mm)
c3
Datum length (mm)
c3
900 990 1040 1100 1140 1220 1290 1360 1440 1540 1640 1740 1840 1940 2040 2160 2280 2400 2590 2690 2840 3040 3190 3390 3590 3790 4040 4290 4540 4790 5040 5340 5640 6040 6340
0.81 0.83 0.84 0.85 0.85 0.87 0.88 0.89 0.90 0.92 0.93 0.94 0.95 0.97 0.98 0.99 1.00 1.01 1.03 1.04 1.05 1.06 1.07 1.09 1.10 1.11 1.13 1.14 1.15 1.17 1.18 1.19 1.20 1.22 1.23
948 998 1048 1168 1228 1298 1368 1448 1548 1648 1848 2048 2168 2298 2408 2548 2698 2848 3048 3198 3398 3598 3798 4048 4298 4548 4798 5048 5348 5648 6048 6348 7148 8048
0.75 0.76 0.77 0.79 0.80 0.81 0.82 0.83 0.85 0.86 0.88 0.91 0.92 0.93 0.94 0.95 0.96 0.98 0.99 1.00 1.01 1.03 1.04 1.05 1.06 1.08 1.09 1.10 1.11 1.13 1.14 1.15 1.18 1.21
Section D/32 0.99 1.00 1.01 1.02 1.04 1.05 1.06 1.07 1.09 1.10 1.11 1.13 1.15 1.18 1.20 1.23
3225 3425 3625 3825 4075 4325 4575 4825 5075 5375 5675 6075 6375 6775 7175 7575 8075 8575 9075 9575
0.86 0.87 0.88 0.89 0.91 0.92 0.93 0.94 0.95 0.96 0.98 0.99 1.00 1.01 1.03 1.04 1.05 1.06 1.08 1.09
Section 20
10075 10675 11275 11875 12575 13275 14075 15075 16075
Section E/40 1.10 1.11 1.13 1.14 1.15 1.16 1.18 1.19 1.21
4830 5080 5380 5680 6080 6380 6780 7180 7580 8080 8580 9080 9580 10080 10680 11280 11880 12580 13280 14080 15080 16080
0.92 0.93 0.94 0.95 0.96 0.97 0.99 1.00 1.01 1.03 1.04 1.05 1.06 1.07 1.09 1.10 1.11 1.12 1.14 1.15 1.17 1.18
* Raw edge, moulded cogged V-belts
Technical Manual V-Belts
Drive Calculation Guidelines for Selecting V-Belt and Kraftband Sections
By using the following diagrams, the most suitable belt section as far as efficiency and size are concerned, can be selected for a specific application. The most efficient power transmission is achieved by selecting as large a pulley diameter as possible for the section in question. The limits to be observed are the maximum permissible circumferential speed, namely for high performance wedge belts for classical V-belts
vmax ≈ 55 m/s*, vmax ≈ 30 m/s.
Experience has shown that the minimum pulley diameters should be avoided. These drives require a larger number of belts needing wider pulleys, and are therefore more costly. In borderline cases it is recommended that the next smaller section belt be used on the same diameter pulley, as the smaller section will often save both cost and space. A further recommended solution is the use of the raw edge Optibelt SUPER TX M=S V-belts, Super X-POWER wedge belts or RED POWER II wedge belts.
In such boundary areas it is advisable to design the drive with both sections and then to select the most suitable,because for using the same pulley diameter the small section saves costs and space. For other solutions we are recommending to use Optibelt Super X-POWER M=S V-belts similary there is a inspection advisable, if the intersection point from the useable range diagram is in limit between two profiles. Comparing space requirement and costs, the wedge belt normally proves to be significantly superior to the classical V-belt for almost all industrial machinery drives. For this reason, new designs use wedge belts almost exclusively. It is only in special cases, for replacement requirements and with V-flat drives, that the use of classical section V-belts will be necessary.
* Important note: where V > 42 m/s please consult our Applications Engineering Department
Speed of the small pulley nk (rpm)
Diagram 1: Optibelt VB classical V-belts to BS 3790/DIN 2215
Design power PB = P · c2 (kW) 73
Technical Manual V-Belts
Drive Calculation Guidelines for Selecting V-Belt and Kraftband Sections
m m 10 0
m
to
m
dk
m
m
m
to dk
d
dk
to
63
0
d
to dk
d
40
25
0
0
m
m
m
m
m to
d
dk
d
dk
to
25
0
18
d
0
dk
m
to
m
18
0
d
Speed of the small pulley nk (rpm)
Diagram 2: Optibelt SK wedge belts to BS 3790/DIN 7753 Part 1
Design power PB = P 路 c2 (kW)
Speed of the small pulley nk (rpm)
Diagram 3: Optibelt SK wedge belts to USA Standard RMA/MPTA
74
Design power PB = P 路 c2 (kW)
Technical Manual V-Belts
Drive Calculation Guidelines for Selecting V-Belt and Kraftband Sections
Speed of the small pulley nk (rpm)
Diagram 4: Optibelt Super X-POWER M=S wedge belts
d dk
to
1
00
mm
d dk
to
1
80
mm
d dk
to
0 18
d
mm
dk
to
2
50
mm
d dk
to
0 25
mm
d dk
to
0 40
mm
Design power PB = P 路 c2 (kW)
Speed of the small pulley nk (rpm)
Diagram 5: Optibelt SUPER TX M=S V-belts
Design power PB = P 路 c2 (kW)
75
Technical Manual V-Belts
Drive Calculation Minimum Allowance x/y for Adjusting Drive Centre Distance anom
Table 22: Optibelt SK wedge belts Datum length (mm) 487 ≤
Minimum allowance x (mm) – for tensioning
Minimun allowance y (mm) – for fitting SPZ, XPZ
SPA, XPA
SPB, XPB
SPC, XPC
670
10
10
10
—
—
670 ≤ 1 000
15
15
15
—
—
> 1 000 ≤ 1 250
20
15
15
—
—
> 1 250 ≤ 1 800
25
20
20
20
—
> 1 800 ≤ 2 240
25
20
20
20
25
> 2 240 ≤ 3 000
35
20
20
20
30
> 3 000 ≤ 4 000
45
20
20
20
30
> 4 000 ≤ 5 000
55
20
20
25
30
> 5 000 ≤ 6 300
70
25
25
30
35
> 6 300 ≤ 8 000
85
25
25
35
40
> 8 000 ≤ 10 000
110
30
30
35
45
> 10 000 ≤ 12 500
135
—
—
35
45
> 12 500 ≤ 15 000
150
—
—
45
55
> 15 000 ≤ 18 000
190
—
—
45
55
>
Table 23: Optibelt SK wedge belts Length designation
Outside length (mm)
Minimum allowance x (mm) – for tensioning
Minimum allowance y (mm) – for fitting 3V/9N, 3VX/9NX
5V/15N, 5VX/15NX
8V/25N
>
265 ≤
400
>
673 ≤ 1 016
15
15
—
—
>
400 ≤
475
> 1 016 ≤ 1 206
20
15
—
—
>
475 ≤
710
> 1 206 ≤ 1 803
25
20
20
—
>
710 ≤
850
> 1 803 ≤ 2 159
25
20
20
—
>
850 ≤ 1 180
> 2 159 ≤ 2 997
35
20
20
40
> 1 180 ≤ 1 600
> 2 997 ≤ 4 064
45
20
20
40
> 1 600 ≤ 2 000
> 4 064 ≤ 5 080
55
20
25
40
> 2 000 ≤ 2 500
> 5 080 ≤ 6 350
70
—
30
45
> 2 500 ≤ 3 150
> 6 350 ≤ 8 001
85
—
35
45
> 3 150 ≤ 4 000
> 8 001 ≤ 10 160
110
—
35
50
> 4 000 ≤ 5 000
> 10 160 ≤ 12 700
135
—
35
50
> 5 000 ≤ 6 000
> 12 700 ≤ 15 240
150
—
45
60
> 6 000 ≤ 7 100
> 15 240 ≤ 18 034
190
—
45
60
76
Technical Manual V-Belts
Drive Calculation Minimum Allowance x/y for Adjusting Drive Centre Distance anom
Table 24: Optibelt VB classical V-belts Datum length (mm)
Minimum allowance x (mm) – for tensioning
Minimun allowance y (mm) – for fitting 5
Y/6
8
Z/10, A/13, B/17, ZX/X10 AX/X13 BX/X17
20
C/22, CX/X22
25
D/32
E/40
≤
200
5
10
—
—
—
—
—
—
—
—
—
—
>
200 ≤
250
5
10
10
—
—
—
—
—
—
—
—
—
>
250 ≤
315
5
10
10
10
10
—
—
—
—
—
—
—
>
315 ≤
670
10
—
—
10
10
10
10
—
—
—
—
—
>
670 ≤ 1 000
15
—
—
10
15
15
15
—
—
—
—
—
> 1 000 ≤ 1 250
20
—
—
15
15
15
15
20
20
—
—
—
> 1 250 ≤ 1 800
25
—
—
15
20
20
20
20
25
25
—
—
> 1 800 ≤ 2 240
25
—
—
20
20
20
20
25
25
30
35
—
> 2 240 ≤ 3 000
35
—
—
—
20
20
20
25
30
30
35
40
> 3 000 ≤ 4 000
45
—
—
—
20
20
20
25
30
30
35
40
> 4 000 ≤ 5 000
55
—
—
—
20
20
20
30
30
30
35
40
> 5 000 ≤ 6 300
70
—
—
—
—
20
25
35
35
35
40
45
> 6 300 ≤ 8 000
85
—
—
—
—
20
25
40
40
40
45
50
> 8 000 ≤ 10 000
110
—
—
—
—
25
25
40
45
45
45
50
> 10 000 ≤ 12 500
135
—
—
—
—
—
30
40
45
45
50
55
> 12 500 ≤ 15 000
150
—
—
—
—
—
40
50
55
55
60
65
> 15 000 ≤ 18 000
190
—
—
—
—
—
40
50
55
55
60
65
anom
77
Technical Manual V-Belts
Drive Calculation Minimum Allowance x/y for Adjusting Drive Centre Distance anom
Table 25: Optibelt KB Kraftbands with wedge belts Length designation
Outside length (mm)
Minimum allowance x (mm) – for tensioning
Minimum allowance y (mm) – for fitting SPZ, 3V/9J
SPA, SPB, 5V/15J
8V/25J
SPC
475 ≤
710
1 206 ≤ 1 803
25
35
40
—
—
>
710 ≤
850
> 1 803 ≤ 2 159
25
35
40
—
—
>
850 ≤ 1 180
> 2 159 ≤ 2 997
35
35
40
80
—
> 1 180 ≤ 1 600
> 2 997 ≤ 4 064
45
35
40
80
80
> 1 600 ≤ 2 000
> 4 064 ≤ 5 080
55
40
45
85
85
> 2 000 ≤ 2 500
> 5 080 ≤ 6 350
70
45
50
85
85
> 2 500 ≤ 3 150
> 6 350 ≤ 8 001
85
50
55
95
95
> 3 150 ≤ 4 000
> 8 001 ≤ 10 160
110
50
55
95
95
> 4 000 ≤ 5 000
> 10 160 ≤ 12 700
135
—
60
95
95
> 5 000 ≤ 6 000
> 12 700 ≤ 15 240
150
—
70
105
105
> 6 000 ≤ 7 100
> 15 240 ≤ 18 034
190
—
85
120
120
Note: Datum lengths must be considered for kraftbands with sections SPZ, SPA, SPB and SPC. For raw edge kraftbands, the same x/y values apply.
Table 26: Optibelt KB Kraftbands with classical V-belts Lengths (mm)
78
Minimum allowance x (mm) – for tensioning
Minimum allowance y (mm) – for fitting A/HA
B/HB
C/HC
D/HD
1 200 ≤ 1 800
25
30
35
—
—
> 1 800 ≤ 2 240
25
30
35
—
—
> 2 240 ≤ 3 000
35
30
35
50
85
> 3 000 ≤ 4 000
45
30
35
50
85
> 4 000 ≤ 5 000
55
30
40
55
90
> 5 000 ≤ 6 300
70
35
45
60
90
> 6 300 ≤ 8 000
85
45
55
65
100
> 8 000 ≤ 10 000
110
45
55
65
100
> 10 000 ≤ 12 500
135
50
60
75
100
> 12 500 ≤ 15 000
150
60
70
85
110
> 15 000 ≤ 18 000
190
70
85
95
125
Technical Manual V-Belts
Drive Calculation Formulae and Calculation Examples
Prime mover
Operating conditions
Driven machine
3-phase motor P = 132 kW n1 = 1485 rpm Star delta start Starting torque MA = 0.65 MN
Daily operation: approx. 18 hours Number of starts: one per day Operating conditions: normal room temperature, no exposure to oil, water or dust Drive centre distance: between 1300 and 1500, variable Pulley diameter: dd1 ≤ 300 mm
Fan P = 132 kW n2 = 825 ± 15 rpm Start-up: under load Type of loading: continuous
Note: The calculation takes into consideration the standard specified by ISO for datum diameter dd (supersedes pitch diameter dw) and datum length Ld (supersedes pitch length Lw). Formulae
Calculation example
Service factor c2 from table 18 page 69
c2 = 1.3
Design Power PB = P · c2
PB = 132 · 1.3 = 171.6 kW
Selection of belt section from diagram 2 page 74
SPB
Speed ratio i=
n1 n2
=
dd2 dd1
i=
1485 825
= 1.8
Datum diameters of the pulleys dd1 selected from table 10 page 43
dd1 = 280 mm selected
dd2 = dd1 · i
dd2 = 280 mm · 1.8 = 504
dd1 =
dd2 i
dd2 = 500 mm selected from table 10 page 43 79
Technical Manual V-Belts
Drive Calculation Formulae and Calculation Examples
Formulae
Calculation example
Recalculation of the speed of the driven unit ivorh
=
n2 vorh =
dd2
ivorh
dd1 n1
n2 vorh
ivorh
500 = 1.79 280 1485 = = 830 min-1 1.79 =
required: 825 ± 15 rpm (requirement met)
Drive centre distance (preleminary choice) recommended:
a > 0.7
(ddg + ddk)
a<2
(ddg + ddk)
a = 1400 mm selected
Belt datum length Ldth ≈ 2 a + 1.57 (ddg + ddk) +
(ddg – ddk)2 4a
actual:
Ldth ≈ 2 · 1400 + 1.57 · 780 +
2202 4 · 1400
≈ 4033 mm
next standard length selected from page 19
Ldth = 2 a · sin
β 2
+
π 2
(ddg + ddk) +
α·π 180°
(ddg – ddk)
LdSt = 4000 mm
Drive centre distance (actual) calculated from LdSt and Ldth LdSt – Ldth (if LdSt > Ldth) anom ≈ a + 2 Ldth – LdSt (if LdSt < Ldth) anom ≈ a – 2 actual: anom =
LdSt –
[
anom ≈ 1400 –
4033 – 4000 2
≈ 1383.5 mm
π (ddg + ddk) 2 + 4
π LdSt – 2 (ddg + ddk) 4
]
2
–
(ddg – ddk)2 8
Minimum allowance x/y for adjusting drive centre distance anom x/y from table 22 page 76
x ≥ 45 mm / y ≥ 20 mm
Belt speed and flex rate
Speed and flex rate of the belt
v = fb = 80
ddk · nk 19100 2 · 1000 · v LdSt
(vmax ≈ 55 m/s)
v =
(fB max ≈ 100 s-1)
fb =
280 · 1485 19100
= 21.76 m/s
2 · 1000 · 21.76 4000
= 10.88 s-1
Technical Manual V-Belts
Drive Calculation Formulae and Calculation Examples
Formulae
Calculation example
Arc of contact and correction factor ddg – ddk
500 – 280
anom β° approximate and c1 from table 17 page 68
1383.5 β ≈ 170°
β
actual: cos
2
=
ddg – ddk
c1 = 1.0
2 anom
= 0.16
}
linearly interpolated
Length factor c3 from table 19 page 70
c3 = 1.02
Nominal power per belt
PN for
ddk = 280 mm i = 1.79 nk = 1485 min-1
{
section SPB from table 29, page 85
PN = 20.63 + 1.24 = 21.87 kW
Number of belts z=
P · c2
z=
PN · c1 · c3
132 · 1.3 21.87 · 1.0 · 1.02
= 7.69
Suggested: 8 Optibelt SK wedge belts SPB 4000 Ld S=C plus Section SPB: Minimum static tension per belt (multiply “T” by 1.3 at initial installation) T≈
500 · (2.02 – c1) · PB c1 · z · v
+ k · v2
k from diagram 8 page 124 Minimum static shaft loading (multiply by a factor of 1.3 at initial installation) β ·z Sa ≈ 2 T · sin 2
T≈
500 · (2.02 – 1.0) · 171.6 1.0 · 8 · 21.76
+ 0.19 · 473.5 ≈ 593 N
initial installation: T = 593 N · 1.3 = 771 N
Sa ≈ 2 · 593 · 0.9962 · 8 ≈ 9452 N initial installation: Sa = 9452 N · 1.3 = 12288 N
Belt deflection Ea ≈ E · L 100 E from diagram 8 page 124 β L = anom · sin 2
Ea ≈
2.7 · 1378
100 E ≈ 2.7 mm
≈ 37 mm
L = 1383.5 · 0.9962 · 1378 mm
81
Technical Manual V-Belts
Drive Calculation optibelt CAP – Example
The drive requires: – 8 pce(s) Optibelt SK wedge belt SPC 6300 Ld S=C plus – Optibelt KS pulley bored for taper bush TB SPC 400-8 – Optibelt TB taper bush 4545 (Bore diameter 55 -110 mm) – Optibelt KS pulley bored for taper bush TB SPC 800-8 – Optibelt TB taper bush 5050 (Bore diameter 70 -125 mm)
Deviation/Hints Type of driver unit Type of driven unit Calculation power Drive power Torque at driver pulley Driver speed Required driven speed Datum diameter pulley 1 Datum diameter pulley 2 Datum length Actual centres Actual drive ratio Adjustment required for belt fitting Adjustment required for belt tensioning
: : PB: P: M: n1: n2: dd1: dd2: Ld: a: i: y: x:
Electric motor Mill (hammer) 416.00 kW 260.00 kW 1399 Nm 1775 1/min 888 1/min 400.00 mm 800.00 mm 6300 mm 2198.40 mm 2.00 35.00 mm 70.00 mm
Actual service factor Belt speed Flex rate Power per belt Arc of contact factor Belt length factor Arc of contact on small pulley Pulley face width Span length
c2: v: fB: PN: c1: c3: 웁: b2: l:
Calculated number of belts Weight of drive
z1:
7.93 276.87 kg
Sast: Samin: Sadyn:
25519 N 19630 N 11752 N
Statistic shaft load, initial installation Statistic shaft load (retonsioning) Dynamic shaft load
1.61 37.17 11.80 51.84 0.99 1.02 169.60 212.50 2189.30
Tensioning recommendations proposed c2 = 1.60 1. OPTIKRIK II + III 2. Load/deflection tension gauge 3. Length additional value per 1000 mm belt length 4. Optibelt TT 3/TT mini Tension Tester 82
m/s 1/s kW
-1 1/min
****** mm 0.0 %
Dynamic balancing required!
° mm mm proposed c2 = 1.60
Initial installation new belts
Re-tension existing belts
Static tension per belt:
1602 N
1232 N
Load at centre of span:
125 N
125 N
Deflection:
41 mm
51 mm
:
6.3 mm
4.3 mm
Frequency:
14.9 1/s
12.6 1/s
Technical Manual V-Belts
Power Ratings optibelt SK section SPZ, 3V/9N, 3V/9J Nominal Power Rating PN (kW) for
= 180째 and Ld = 1600 mm
Statically balanced
v (m/s)
Pulleys
Table 27 nk
Datum diameter of small pulley ddk (mm)
(min-1)
63
71
80
85
90
95
100
112
125
132
140
150
160
180
200
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 7600 7800 8000 8200 8400
0.50 0.63 0.87 1.38 0.10 0.18 0.25 0.32 0.38 0.44 0.50 0.55 0.61 0.66 0.71 0.76 0.80 0.85 0.89 0.93 0.98 1.02 1.06 1.10 1.13 1.17 1.20 1.24 1.27 1.31 1.34 1.37 1.40 1.43 1.45 1.48 1.51 1.53 1.56 1.58 1.60 1.62 1.64 1.66 1.68 1.70 1.72 1.73 1.75 1.76 1.77 1.78 1.80 1.81 1.81 1.82 1.83 1.83 1.84 1.84 1.84 1.84 1.84 1.83 1.81 1.79 1.77 1.74 1.70 1.66 1.62 1.57 1.51 1.45
0.68 0.87 1.23 2.03 0.13 0.24 0.33 0.43 0.51 0.60 0.68 0.76 0.84 0.91 0.98 1.06 1.12 1.19 1.26 1.32 1.39 1.45 1.51 1.57 1.63 1.69 1.74 1.80 1.85 1.90 1.96 2.01 2.05 2.10 2.15 2.19 2.24 2.28 2.32 2.36 2.40 2.44 2.48 2.51 2.55 2.58 2.61 2.64 2.67 2.70 2.73 2.75 2.78 2.80 2.82 2.84 2.86 2.87 2.89 2.90 2.93 2.94 2.96 2.96 2.96 2.95 2.94 2.91 2.89 2.85 2.81 2.76 2.70 2.63
0.88 1.14 1.62 2.74 0.16 0.30 0.43 0.55 0.66 0.78 0.88 0.99 1.09 1.19 1.29 1.39 1.48 1.58 1.67 1.76 1.85 1.93 2.02 2.10 2.18 2.26 2.34 2.42 2.49 2.57 2.64 2.71 2.78 2.85 2.91 2.98 3.04 3.10 3.16 3.22 3.28 3.33 3.39 3.44 3.49 3.54 3.58 3.63 3.67 3.71 3.75 3.79 3.83 3.86 3.89 3.93 3.95 3.98 4.01 4.03 4.07 4.10 4.12 4.13 4.14 4.14 4.12 4.10 4.07 4.02 3.97 3.91 3.83 3.75
1.00 1.29 1.84 3.13 0.18 0.34 0.48 0.62 0.75 0.87 1.00 1.12 1.24 1.35 1.46 1.57 1.68 1.79 1.89 2.00 2.10 2.20 2.29 2.39 2.48 2.58 2.67 2.75 2.84 2.93 3.01 3.09 3.17 3.25 3.33 3.40 3.48 3.55 3.62 3.68 3.75 3.81 3.88 3.94 4.00 4.05 4.11 4.16 4.21 4.26 4.30 4.35 4.39 4.43 4.47 4.50 4.53 4.56 4.59 4.62 4.66 4.70 4.72 4.74 4.74 4.74 4.72 4.69 4.65 4.60 4.53 4.46 4.37 4.27
1.11 1.44 2.06 3.52 0.20 0.37 0.53 0.68 0.83 0.97 1.11 1.24 1.38 1.51 1.63 1.76 1.88 2.00 2.12 2.23 2.35 2.46 2.57 2.68 2.78 2.89 2.99 3.09 3.19 3.28 3.38 3.47 3.56 3.65 3.74 3.82 3.91 3.99 4.06 4.14 4.22 4.29 4.36 4.43 4.49 4.55 4.62 4.67 4.73 4.78 4.84 4.88 4.93 4.97 5.02 5.05 5.09 5.12 5.16 5.18 5.23 5.27 5.29 5.30 5.30 5.29 5.27 5.23 5.18 5.11 5.03 4.94 4.83 4.70
1.22 1.59 2.27 3.90 0.22 0.41 0.58 0.75 0.91 1.07 1.22 1.37 1.52 1.66 1.80 1.94 2.07 2.21 2.34 2.47 2.59 2.72 2.84 2.96 3.08 3.20 3.31 3.42 3.53 3.64 3.74 3.85 3.95 4.05 4.14 4.24 4.33 4.42 4.50 4.59 4.67 4.75 4.83 4.90 4.97 5.04 5.11 5.18 5.24 5.30 5.35 5.40 5.45 5.50 5.55 5.59 5.63 5.66 5.69 5.72 5.77 5.80 5.82 5.83 5.82 5.80 5.76 5.71 5.64 5.56 5.46 5.34 5.21 5.05
1.33 1.74 2.49 4.27 0.24 0.44 0.63 0.81 0.99 1.16 1.33 1.50 1.66 1.81 1.97 2.12 2.27 2.42 2.56 2.70 2.84 2.98 3.11 3.24 3.37 3.50 3.63 3.75 3.87 3.99 4.10 4.22 4.33 4.43 4.54 4.64 4.74 4.84 4.94 5.03 5.12 5.20 5.29 5.37 5.45 5.52 5.59 5.66 5.73 5.79 5.85 5.91 5.96 6.01 6.05 6.10 6.14 6.17 6.20 6.23 6.28 6.31 6.32 6.32 6.30 6.26 6.21 6.14 6.05 5.94 5.82 5.67 5.50 5.32
1.60 2.08 3.00 5.15 0.28 0.52 0.75 0.97 1.19 1.39 1.60 1.79 1.99 2.18 2.37 2.55 2.73 2.91 3.08 3.26 3.42 3.59 3.75 3.91 4.07 4.22 4.38 4.52 4.67 4.81 4.95 5.08 5.22 5.34 5.47 5.59 5.71 5.83 5.94 6.04 6.15 6.25 6.35 6.44 6.53 6.61 6.69 6.77 6.84 6.91 6.97 7.03 7.08 7.13 7.18 7.22 7.26 7.29 7.31 7.33 7.36 7.36 7.35 7.31 7.25 7.16 7.05 6.92 6.76 6.58 6.37 6.13
1.88 2.46 3.54 6.07 0.33 0.61 0.88 1.14 1.39 1.64 1.88 2.12 2.35 2.57 2.79 3.01 3.23 3.44 3.64 3.85 4.05 4.24 4.43 4.62 4.81 4.99 5.17 5.34 5.51 5.67 5.83 5.99 6.14 6.29 6.43 6.57 6.71 6.84 6.96 7.08 7.20 7.31 7.41 7.51 7.61 7.70 7.78 7.86 7.93 8.00 8.06 8.11 8.16 8.20 8.24 8.27 8.29 8.31 8.32 8.32 8.30 8.26 8.19 8.08 7.94 7.78 7.58 7.34
2.03 2.66 3.83 6.55 0.35 0.66 0.95 1.23 1.51 1.77 2.03 2.29 2.54 2.78 3.02 3.26 3.49 3.72 3.94 4.16 4.38 4.59 4.80 5.00 5.20 5.39 5.58 5.77 5.95 6.12 6.30 6.46 6.63 6.78 6.93 7.08 7.22 7.36 7.49 7.61 7.73 7.85 7.95 8.06 8.15 8.24 8.32 8.40 8.47 8.53 8.59 8.63 8.68 8.71 8.74 8.76 8.77 8.77 8.77 8.75 8.71 8.62 8.51 8.35
2.20 2.89 4.16 7.08 0.38 0.71 1.03 1.34 1.63 1.92 2.20 2.48 2.75 3.02 3.28 3.54 3.79 4.04 4.28 4.52 4.75 4.98 5.20 5.42 5.64 5.84 6.05 6.25 6.44 6.63 6.81 6.99 7.16 7.33 7.49 7.64 7.79 7.93 8.07 8.20 8.32 8.43 8.54 8.64 8.73 8.82 8.90 8.97 9.03 9.09 9.13 9.17 9.20 9.22 9.24 9.24 9.23 9.22 9.20 9.16 9.07 8.93 8.76 8.54
2.42 3.17 4.56 7.72 0.42 0.78 1.13 1.47 1.79 2.11 2.42 2.72 3.02 3.31 3.60 3.88 4.16 4.43 4.69 4.95 5.21 5.46 5.70 5.94 6.17 6.40 6.62 6.84 7.04 7.25 7.44 7.63 7.81 7.99 8.16 8.32 8.47 8.61 8.75 8.88 9.00 9.12 9.22 9.32 9.41 9.48 9.55 9.61 9.66 9.70 9.73 9.76 9.77 9.77 9.75 9.73 9.70 9.66 9.60 9.53 9.37
2.63 3.45 4.96 8.34 0.45 0.85 1.23 1.59 1.95 2.29 2.63 2.96 3.29 3.61 3.92 4.22 4.52 4.82 5.11 5.39 5.66 5.93 6.19 6.45 6.70 6.94 7.18 7.41 7.63 7.84 8.05 8.25 8.44 8.62 8.79 8.95 9.11 9.26 9.39 9.52 9.64 9.75 9.85 9.93 10.01 10.08 10.13 10.17 10.21 10.23 10.24 10.23 10.22 10.19 10.15 10.09 10.03 9.95
3.05 4.00 5.75 9.50 0.52 0.98 1.42 1.85 2.26 2.66 3.05 3.44 3.81 4.18 4.54 4.90 5.24 5.58 5.91 6.23 6.55 6.85 7.15 7.44 7.72 7.99 8.25 8.50 8.74 8.97 9.19 9.40 9.60 9.79 9.96 10.12 10.28 10.41 10.54 10.65 10.75 10.83 10.90 10.96 11.00 11.03 11.04 11.03 11.01 10.97 10.92 10.85 10.76 10.65
3.47 4.54 6.51 10.55 0.59 1.12 1.62 2.10 2.57 3.02 3.47 3.91 4.33 4.75 5.16 5.56 5.95 6.32 6.69 7.05 7.40 7.74 8.07 8.38 8.68 8.98 9.26 9.52 9.77 10.01 10.24 10.45 10.64 10.82 10.99 11.14 11.27 11.39 11.48 11.56 11.62 11.67 11.69 11.70 11.68 11.64 11.59 11.51 11.41
SK
Where v > 42 m/s, please consult our Applications Engineering Department
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.01 0.01 0.02 0.04 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.12 0.12
0.06 0.09 0.13 0.26 0.01 0.02 0.03 0.04 0.05 0.06 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.54 0.56 0.57 0.59 0.61 0.63 0.65 0.67 0.69 0.70 0.72 0.74 0.76 0.78
0.09 0.12 0.19 0.37 0.01 0.03 0.04 0.05 0.07 0.08 0.09 0.11 0.12 0.13 0.14 0.16 0.17 0.18 0.20 0.21 0.22 0.24 0.25 0.26 0.28 0.29 0.30 0.32 0.33 0.34 0.35 0.37 0.38 0.39 0.41 0.42 0.43 0.45 0.46 0.47 0.49 0.50 0.51 0.53 0.54 0.55 0.57 0.58 0.59 0.60 0.62 0.63 0.64 0.66 0.67 0.68 0.70 0.71 0.72 0.74 0.76 0.79 0.81 0.84 0.87 0.89 0.92 0.95 0.97 1.00 1.03 1.05 1.08 1.10
0.11 0.15 0.23 0.46 0.02 0.03 0.05 0.06 0.08 0.10 0.11 0.13 0.15 0.16 0.18 0.19 0.21 0.23 0.24 0.26 0.27 0.29 0.31 0.32 0.34 0.35 0.37 0.39 0.40 0.42 0.44 0.45 0.47 0.48 0.50 0.52 0.53 0.55 0.56 0.58 0.60 0.61 0.63 0.64 0.66 0.68 0.69 0.71 0.73 0.74 0.76 0.77 0.79 0.81 0.82 0.84 0.85 0.87 0.89 0.90 0.93 0.97 1.00 1.03 1.06 1.10 1.13 1.16 1.19 1.22 1.26 1.29 1.32 1.35
v (m/s) Dynamically balanced (for details see DIN 2211) Note: Pulley diameters shown are outside diameters for sections 3V/9N, 3V/9J.
Pulleys
83
Technical Manual V-Belts
Power Ratings optibelt SK section SPA Nominal Power Rating PN (kW) for
= 180째 and Ld = 2500 mm
Statically balanced
v (m/s)
Pulleys
Table 28 nk
Datum diameter of small pulley ddk (mm)
(min-1)
90
100
112
118
125
132
140
150
160
180
200
224
250
280
315
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000
1.17 1.49 2.04 3.14 0.23 0.42 0.59 0.75 0.90 1.04 1.17 1.30 1.43 1.55 1.66 1.77 1.88 1.99 2.09 2.19 2.28 2.37 2.46 2.54 2.62 2.70 2.78 2.85 2.92 2.99 3.05 3.11 3.16 3.22 3.26 3.31 3.35 3.39 3.43 3.46 3.49 3.51 3.53 3.55 3.57 3.58 3.58 3.58 3.58 3.58 3.57 3.55 3.53 3.51 3.48 3.45 3.42 3.38 3.33 3.28 3.23 3.17 3.11 3.04 2.96 2.89 2.80 2.71 2.62 2.52 2.42 2.31 2.19 2.07
1.55 1.98 2.76 4.40 0.30 0.54 0.76 0.97 1.17 1.36 1.55 1.72 1.90 2.06 2.23 2.38 2.54 2.69 2.83 2.97 3.11 3.24 3.37 3.50 3.62 3.74 3.85 3.96 4.07 4.17 4.27 4.36 4.45 4.53 4.61 4.69 4.76 4.83 4.89 4.95 5.01 5.06 5.10 5.14 5.17 5.20 5.23 5.25 5.26 5.27 5.27 5.27 5.26 5.25 5.23 5.21 5.18 5.14 5.10 5.05 4.99 4.93 4.86 4.79 4.70 4.62 4.52 4.42 4.31 4.19 4.07 3.94 3.80 3.66
1.99 2.57 3.62 5.88 0.37 0.68 0.96 1.24 1.50 1.75 1.99 2.23 2.45 2.68 2.90 3.11 3.31 3.52 3.71 3.91 4.09 4.27 4.45 4.62 4.79 4.95 5.11 5.26 5.41 5.55 5.69 5.82 5.94 6.06 6.18 6.29 6.39 6.49 6.58 6.66 6.74 6.81 6.88 6.94 6.99 7.04 7.08 7.11 7.13 7.15 7.16 7.16 7.16 7.15 7.13 7.10 7.06 7.02 6.96 6.90 6.83 6.75 6.66 6.57 6.46 6.34 6.22 6.09 5.94 5.79 5.62 5.45 5.27 5.07
2.21 2.86 4.04 6.60 0.40 0.75 1.07 1.37 1.66 1.94 2.21 2.47 2.73 2.98 3.23 3.47 3.70 3.93 4.15 4.37 4.58 4.78 4.98 5.18 5.37 5.55 5.73 5.90 6.07 6.23 6.38 6.53 6.67 6.81 6.94 7.06 7.18 7.29 7.39 7.48 7.57 7.65 7.73 7.79 7.85 7.90 7.95 7.98 8.01 8.03 8.04 8.04 8.03 8.01 7.99 7.95 7.91 7.85 7.79 7.71 7.63 7.54 7.43 7.32 7.19 7.06 6.91 6.75 6.58 6.40 6.21 6.01 5.79 5.56
2.47 3.20 4.53 7.43 0.45 0.83 1.18 1.52 1.85 2.16 2.47 2.76 3.05 3.34 3.61 3.88 4.15 4.40 4.65 4.90 5.14 5.37 5.60 5.82 6.03 6.24 6.44 6.63 6.82 7.00 7.18 7.34 7.50 7.66 7.80 7.94 8.07 8.19 8.31 8.41 8.51 8.60 8.68 8.75 8.81 8.87 8.91 8.95 8.97 8.99 8.99 8.99 8.97 8.95 8.91 8.86 8.80 8.73 8.65 8.56 8.45 8.34 8.21 8.07 7.92 7.75 7.57 7.38 7.17 6.95 6.72 6.48 6.22 5.94
2.72 3.53 5.02 8.23 0.49 0.91 1.30 1.67 2.03 2.38 2.72 3.05 3.37 3.69 4.00 4.30 4.59 4.87 5.15 5.43 5.69 5.95 6.20 6.45 6.69 6.92 7.14 7.36 7.56 7.76 7.96 8.14 8.32 8.49 8.64 8.80 8.94 9.07 9.19 9.31 9.41 9.50 9.59 9.66 9.73 9.78 9.82 9.85 9.87 9.88 9.88 9.86 9.84 9.80 9.74 9.68 9.60 9.51 9.41 9.29 9.16 9.01 8.85 8.68 8.49 8.29 8.07 7.84 7.59
3.01 3.91 5.57 9.13 0.54 1.00 1.43 1.85 2.25 2.63 3.01 3.38 3.74 4.09 4.43 4.76 5.09 5.41 5.72 6.02 6.32 6.61 6.89 7.16 7.42 7.68 7.93 8.17 8.39 8.62 8.83 9.03 9.22 9.41 9.58 9.74 9.89 10.03 10.17 10.28 10.39 10.49 10.57 10.65 10.71 10.76 10.79 10.81 10.82 10.82 10.80 10.77 10.72 10.66 10.58 10.49 10.39 10.27 10.13 9.97 9.80 9.62 9.42 9.20 8.96 8.70 8.43 8.14 7.83
3.37 4.39 6.25 10.21 0.60 1.11 1.60 2.06 2.51 2.95 3.37 3.78 4.19 4.58 4.97 5.34 5.71 6.07 6.42 6.76 7.09 7.42 7.73 8.03 8.33 8.61 8.89 9.15 9.41 9.65 9.88 10.11 10.32 10.51 10.70 10.87 11.03 11.18 11.32 11.44 11.55 11.64 11.72 11.79 11.84 11.87 11.89 11.90 11.88 11.86 11.81 11.75 11.67 11.57 11.45 11.32 11.17 11.00 10.81 10.60 10.37 10.12 9.84 9.55
3.73 4.86 6.92 11.25 0.65 1.22 1.76 2.28 2.77 3.26 3.73 4.19 4.64 5.07 5.50 5.92 6.33 6.72 7.11 7.49 7.86 8.21 8.56 8.89 9.22 9.53 9.83 10.12 10.39 10.65 10.90 11.14 11.36 11.57 11.77 11.95 12.11 12.26 12.40 12.52 12.62 12.70 12.77 12.82 12.85 12.87 12.86 12.84 12.80 12.73 12.65 12.55 12.43 12.28 12.11 11.92 11.71 11.48 11.22
4.44 5.78 8.24 13.21 0.77 1.45 2.09 2.70 3.30 3.87 4.44 4.99 5.52 6.04 6.55 7.05 7.54 8.01 8.47 8.91 9.34 9.76 10.17 10.55 10.93 11.29 11.63 11.95 12.26 12.56 12.83 13.09 13.32 13.54 13.74 13.92 14.07 14.21 14.32 14.42 14.48 14.53 14.55 14.55 14.52 14.47 14.39 14.28 14.15 13.99 13.80 13.58 13.33 13.05
5.14 6.70 9.52 14.97 0.89 1.67 2.41 3.12 3.81 4.48 5.14 5.77 6.39 7.00 7.59 8.16 8.72 9.26 9.79 10.29 10.78 11.25 11.71 12.14 12.56 12.95 13.32 13.67 14.00 14.31 14.59 14.85 15.08 15.29 15.47 15.62 15.75 15.84 15.91 15.95 15.95 15.93 15.87 15.78 15.66 15.50 15.30 15.07 14.80
5.97 7.78 11.02 16.81 1.03 1.94 2.80 3.63 4.43 5.21 5.97 6.71 7.43 8.12 8.80 9.46 10.10 10.72 11.32 11.89 12.44 12.97 13.47 13.94 14.39 14.81 15.20 15.57 15.90 16.20 16.47 16.70 16.90 17.07 17.20 17.29 17.34 17.35 17.33 17.26 17.15 16.99 16.79 16.54
6.85 8.92 12.58 18.43 1.18 2.22 3.21 4.16 5.09 5.98 6.85 7.70 8.52 9.32 10.09 10.84 11.55 12.25 12.91 13.54 14.14 14.71 15.25 15.75 16.22 16.65 17.04 17.39 17.70 17.96 18.19 18.36 18.49 18.57 18.60 18.58 18.51 18.38 18.20
7.86 10.21 14.30 19.78 1.35 2.55 3.68 4.78 5.84 6.86 7.86 8.82 9.76 10.66 11.53 12.37 13.17 13.93 14.66 15.34 15.99 16.59 17.14 17.65 18.11 18.52 18.87 19.17 19.41 19.60 19.72 19.78 19.77 19.70
9.01 11.68 16.18 20.57 1.55 2.92 4.23 5.49 6.70 7.88 9.01 10.11 11.17 12.18 13.15 14.08 14.96 15.79 16.56 17.29 17.95 18.56 19.10 19.57 19.98 20.32 20.58 20.77 20.87 20.90 20.83 20.68 20.44
SK
Where v > 42 m/s, please consult our Applications Engineering Department
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.02 0.03 0.05 0.09 0.00 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.19 0.20 0.20 0.20 0.21 0.21 0.21 0.22 0.22 0.22 0.23 0.23 0.23
0.15 0.20 0.31 0.61 0.02 0.04 0.06 0.09 0.11 0.13 0.15 0.17 0.19 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.37 0.39 0.41 0.43 0.45 0.47 0.50 0.52 0.54 0.56 0.58 0.60 0.62 0.65 0.67 0.69 0.71 0.73 0.75 0.77 0.80 0.82 0.84 0.86 0.88 0.90 0.93 0.95 0.97 0.99 1.01 1.03 1.05 1.08 1.10 1.12 1.14 1.16 1.18 1.21 1.23 1.25 1.27 1.29 1.31 1.33 1.36 1.38 1.40 1.42 1.44 1.46 1.49 1.51
0.21 0.29 0.44 0.87 0.03 0.06 0.09 0.12 0.15 0.18 0.21 0.24 0.27 0.31 0.34 0.37 0.40 0.43 0.46 0.49 0.52 0.55 0.58 0.61 0.64 0.67 0.70 0.73 0.76 0.79 0.82 0.86 0.89 0.92 0.95 0.98 1.01 1.04 1.07 1.10 1.13 1.16 1.19 1.22 1.25 1.28 1.31 1.34 1.37 1.41 1.44 1.47 1.50 1.53 1.56 1.59 1.62 1.65 1.68 1.71 1.74 1.77 1.80 1.83 1.86 1.89 1.92 1.96 1.99 2.02 2.05 2.08 2.11 2.14
v (m/s) Dynamically balanced (for details see DIN 2211)
84
Pulleys
0.26 0.36 0.54 1.07 0.04 0.07 0.11 0.15 0.19 0.22 0.26 0.30 0.34 0.37 0.41 0.45 0.49 0.52 0.56 0.60 0.64 0.67 0.71 0.75 0.79 0.82 0.86 0.90 0.94 0.97 1.01 1.05 1.09 1.12 1.16 1.20 1.24 1.27 1.31 1.35 1.39 1.42 1.46 1.50 1.54 1.57 1.61 1.65 1.69 1.72 1.76 1.80 1.84 1.87 1.91 1.95 1.99 2.02 2.06 2.10 2.13 2.17 2.21 2.25 2.28 2.32 2.36 2.40 2.43 2.47 2.51 2.55 2.58 2.62
Technical Manual V-Belts
Power Ratings optibelt SK section SPB, 5V/15N, 5V/15J Nominal Power Rating PN (kW) for
= 180째 and Ld = 3550 mm
Statically balanced
v (m/s)
Pulleys
Table 29 nk
Datum diameter of small pulley ddk (mm)
(min-1)
140
150
160
180
190
200
212
224
236
250
280
315
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500
3.46 4.42 6.09 9.07 0.66 1.21 1.71 2.17 2.62 3.05 3.46 3.85 4.23 4.60 4.95 5.29 5.62 5.94 6.24 6.54 6.82 7.08 7.34 7.58 7.81 8.02 8.22 8.41 8.58 8.74 8.88 9.01 9.12 9.22 9.30 9.36 9.41 9.44 9.45 9.45 9.42 9.38 9.31 9.23 9.13 9.01 8.86 8.70 8.51 8.30 8.07 7.82 7.54 7.24 6.92 6.57 6.19 5.79 5.37
4.04 5.19 7.20 10.83 0.76 1.39 1.97 2.52 3.05 3.55 4.04 4.51 4.96 5.40 5.83 6.24 6.63 7.01 7.38 7.73 8.07 8.40 8.71 9.00 9.28 9.54 9.79 10.02 10.23 10.42 10.60 10.76 10.90 11.02 11.12 11.21 11.27 11.31 11.33 11.33 11.30 11.25 11.18 11.09 10.97 10.82 10.65 10.46 10.24 9.99 9.72 9.41 9.08 8.72 8.33 7.91 7.46 6.98 6.47
4.62 5.95 8.29 12.53 0.85 1.57 2.24 2.87 3.48 4.06 4.62 5.17 5.69 6.20 6.69 7.17 7.63 8.08 8.51 8.92 9.31 9.69 10.05 10.39 10.72 11.03 11.31 11.58 11.83 12.06 12.26 12.45 12.61 12.75 12.86 12.96 13.02 13.07 13.08 13.08 13.04 12.98 12.89 12.77 12.62 12.44 12.23 11.99 11.72 11.42 11.08 10.72 10.31 9.87 9.40 8.89 8.34 7.76 7.14
5.77 7.46 10.44 15.71 1.04 1.94 2.77 3.56 4.32 5.06 5.77 6.46 7.13 7.78 8.41 9.01 9.60 10.16 10.71 11.23 11.73 12.21 12.67 13.10 13.51 13.89 14.24 14.57 14.88 15.15 15.39 15.61 15.79 15.95 16.07 16.16 16.21 16.23 16.22 16.17 16.08 15.95 15.78 15.58 15.33 15.04 14.71 14.33 13.92 13.45 12.94 12.38 11.78 11.13
6.34 8.20 11.49 17.18 1.14 2.12 3.03 3.91 4.75 5.56 6.34 7.10 7.84 8.56 9.25 9.92 10.57 11.19 11.79 12.36 12.91 13.44 13.93 14.41 14.85 15.26 15.64 16.00 16.32 16.61 16.86 17.08 17.27 17.42 17.53 17.60 17.63 17.63 17.58 17.49 17.36 17.18 16.95 16.68 16.36 16.00 15.58 15.11 14.60
6.91 8.94 12.53 18.57 1.23 2.30 3.29 4.25 5.16 6.05 6.91 7.74 8.55 9.33 10.09 10.82 11.52 12.20 12.85 13.48 14.07 14.64 15.18 15.68 16.15 16.59 17.00 17.37 17.70 18.00 18.26 18.48 18.66 18.79 18.88 18.93 18.93 18.89 18.80 18.66 18.47 18.22 17.93 17.58 17.17 16.71 16.19 15.62 14.98
7.59 9.82 13.76 20.13 1.35 2.51 3.61 4.66 5.66 6.64 7.59 8.50 9.39 10.25 11.08 11.88 12.65 13.40 14.11 14.79 15.44 16.05 16.63 17.17 17.67 18.14 18.57 18.95 19.29 19.59 19.84 20.05 20.20 20.31 20.37 20.38 20.33 20.22 20.06 19.84 19.57 19.23 18.83 18.36
8.26 10.69 14.96 21.57 1.46 2.73 3.92 5.06 6.16 7.23 8.26 9.26 10.22 11.16 12.06 12.93 13.77 14.57 15.34 16.07 16.77 17.42 18.04 18.61 19.14 19.62 20.06 20.45 20.79 21.08 21.31 21.50 21.62 21.69 21.70 21.64 21.53 21.35 21.10 20.78 20.40 19.94 19.41 18.81
8.92 11.56 16.15 22.87 1.57 2.94 4.23 5.47 6.66 7.81 8.92 10.00 11.05 12.06 13.03 13.97 14.87 15.73 16.55 17.33 18.07 18.76 19.40 20.00 20.55 21.04 21.48 21.87 22.20 22.47 22.67 22.82 22.90 22.91 22.85 22.72 22.52 22.25 21.90
9.70 12.56 17.50 24.21 1.70 3.19 4.59 5.94 7.23 8.48 9.70 10.87 12.00 13.10 14.15 15.16 16.13 17.06 17.93 18.76 19.54 20.27 20.94 21.56 22.11 22.61 23.05 23.41 23.72 23.95 24.11 24.19 24.20 24.13 23.98 23.74 23.42 23.01 22.51
11.33 14.66 20.30 26.40 1.98 3.72 5.36 6.93 8.45 9.92 11.33 12.70 14.02 15.28 16.50 17.65 18.76 19.80 20.78 21.69 22.54 23.31 24.02 24.64 25.19 25.65 26.03 26.31 26.50 26.60 26.60 26.49 26.28 25.96
13.21 17.04 23.36 27.68 2.30 4.33 6.24 8.08 9.85 11.56 13.21 14.79 16.30 17.75 19.13 20.44 21.67 22.82 23.88 24.86 25.74 26.52 27.20 27.77 28.24 28.58 28.81 28.91 28.88 28.71 28.41 27.96 27.36
355
375
400
15.30 16.33 17.59 19.67 20.94 22.50 26.59 28.08 29.83 2.66 5.02 7.25 9.38 11.43 13.41 15.30 17.11 18.84 20.47 22.01 23.46 24.79 26.02 27.12 28.11 28.96 29.68 30.25 30.68 30.94 31.05 30.98 30.74 30.31
2.84 5.36 7.74 10.03 12.22 14.32 16.33 18.25 20.07 21.79 23.40 24.89 26.26 27.51 28.62 29.58 30.39 31.04 31.53 31.84 31.96 31.90 31.63 31.16
3.07 5.79 8.36 10.82 13.18 15.44 17.59 19.64 21.57 23.39 25.07 26.62 28.02 29.27 30.35 31.26 31.99 32.53 32.86 32.99 32.89 32.57
SK
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.05 0.07 0.11 0.21 0.01 0.01 0.02 0.03 0.04 0.04 0.05 0.06 0.07 0.07 0.08 0.09 0.10 0.10 0.11 0.12 0.12 0.13 0.14 0.15 0.15 0.16 0.17 0.18 0.18 0.19 0.20 0.21 0.21 0.22 0.23 0.23 0.24 0.25 0.26 0.26 0.27 0.28 0.29 0.29 0.30 0.31 0.32 0.32 0.33 0.34 0.34 0.35 0.36 0.37 0.37 0.38 0.39 0.40 0.40
0.33 0.45 0.69 1.35 0.05 0.09 0.14 0.19 0.24 0.28 0.33 0.38 0.43 0.47 0.52 0.57 0.62 0.66 0.71 0.76 0.81 0.85 0.90 0.95 0.99 1.04 1.09 1.14 1.18 1.23 1.28 1.33 1.37 1.42 1.47 1.52 1.56 1.61 1.66 1.71 1.75 1.80 1.85 1.89 1.94 1.99 2.04 2.08 2.13 2.18 2.23 2.27 2.32 2.37 2.42 2.46 2.51 2.56 2.61
0.47 0.64 0.97 1.92 0.07 0.13 0.20 0.27 0.34 0.40 0.47 0.54 0.61 0.67 0.74 0.81 0.87 0.94 1.01 1.08 1.14 1.21 1.28 1.34 1.41 1.48 1.55 1.61 1.68 1.75 1.82 1.88 1.95 2.02 2.08 2.15 2.22 2.29 2.35 2.42 2.49 2.55 2.62 2.69 2.76 2.82 2.89 2.96 3.03 3.09 3.16 3.23 3.29 3.36 3.43 3.50 3.56 3.63 3.70
0.58 0.78 1.20 2.35 0.08 0.16 0.25 0.33 0.41 0.49 0.58 0.66 0.74 0.82 0.91 0.99 1.07 1.15 1.24 1.32 1.40 1.48 1.57 1.65 1.73 1.81 1.90 1.98 2.06 2.14 2.23 2.31 2.39 2.47 2.56 2.64 2.72 2.80 2.89 2.97 3.05 3.13 3.21 3.30 3.38 3.46 3.54 3.63 3.71 3.79 3.87 3.96 4.04 4.12 4.20 4.29 4.37 4.45 4.53
Where v > 42 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211) Note: Pulley diameters shown are outside diameters for sections 5V/15N, 5V/15J.
Pulleys
85
Technical Manual V-Belts
Power Ratings optibelt SK section SPC Nominal Power Rating PN (kW) for
= 180째 and Ld = 5600 mm
Statically balanced
v (m/s)
Pulleys
Table 30 nk
Datum diameter of small pulley ddk (mm)
(min-1)
224
250
280
300
315
335
355
375
400
450
500
560
630
710
700 950 1450 2850 50 100 200 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 3050 3100 3150 3200 3250 3300 3350 3400 3450 3500
10.46 13.27 17.79 20.63 1.08 1.99 3.64 5.16 5.89 6.59 7.28 7.95 8.60 9.23 9.85 10.46 11.05 11.63 12.19 12.74 13.27 13.79 14.30 14.79 15.26 15.72 16.17 16.60 17.01 17.41 17.79 18.16 18.51 18.84 19.16 19.45 19.73 19.99 20.24 20.46 20.66 20.85 21.01 21.16 21.28 21.38 21.46 21.52 21.56 21.57 21.57 21.53 21.48 21.40 21.30 21.17 21.02 20.84 20.63 20.40 20.14 19.86 19.55 19.21 18.84 18.44 18.02 17.56 17.08 16.56 16.02 15.44
13.11 16.71 22.48 25.52 1.31 2.44 4.49 6.40 7.31 8.20 9.07 9.91 10.74 11.55 12.34 13.11 13.87 14.60 15.32 16.02 16.71 17.37 18.02 18.64 19.25 19.84 20.41 20.96 21.49 21.99 22.48 22.94 23.39 23.81 24.20 24.58 24.92 25.25 25.55 25.82 26.07 26.29 26.49 26.66 26.79 26.91 26.99 27.04 27.06 27.05 27.02 26.94 26.84 26.71 26.54 26.33 26.10 25.83 25.52 25.18 24.80 24.38 23.93 23.43 22.90 22.33 21.72 21.07 20.38 19.65 18.87 18.05
16.13 20.58 27.64 29.58 1.58 2.94 5.46 7.81 8.94 10.04 11.11 12.16 13.19 14.19 15.17 16.13 17.06 17.98 18.87 19.74 20.58 21.40 22.20 22.97 23.72 24.44 25.13 25.80 26.44 27.06 27.64 28.20 28.72 29.22 29.68 30.11 30.51 30.88 31.21 31.51 31.77 31.99 32.18 32.34 32.45 32.52 32.56 32.55 32.50 32.41 32.28 32.10 31.88 31.62 31.30 30.94 30.54 30.08 29.58 29.03 28.42 27.77 27.06 26.30 25.49 24.62 23.69
18.11 23.11 30.92 31.27 1.75 3.28 6.11 8.75 10.01 11.25 12.46 13.64 14.80 15.93 17.03 18.11 19.16 20.19 21.19 22.16 23.11 24.03 24.91 25.77 26.61 27.41 28.17 28.91 29.62 30.29 30.92 31.53 32.09 32.62 33.11 33.56 33.98 34.35 34.68 34.97 35.22 35.42 35.58 35.69 35.76 35.78 35.75 35.67 35.54 35.36 35.13 34.84 34.50 34.10 33.65 33.14 32.58
19.58 24.97 33.30 31.96 1.89 3.53 6.59 9.44 10.82 12.16 13.47 14.75 16.00 17.22 18.42 19.58 20.72 21.83 22.91 23.96 24.97 25.96 26.92 27.84 28.73 29.58 30.40 31.18 31.93 32.63 33.30 33.93 34.52 35.06 35.56 36.02 36.43 36.80 37.12 37.39 37.61 37.79 37.91 37.97 37.99 37.95 37.85 37.70 37.49 37.22 36.89 36.50 36.05 35.53 34.95 34.30 33.59
21.52 27.42 36.35
23.44 29.82 39.26
25.34 32.18 42.02
27.68 35.05 45.25
32.24 40.55 50.94
36.64 45.70 55.51
41.70 51.38 59.36
47.28 57.27 61.37
53.19 62.91
2.06 3.87 7.22 10.37 11.88 13.36 14.80 16.21 17.59 18.93 20.24 21.52 22.77 23.99 25.17 26.31 27.42 28.50 29.53 30.53 31.49 32.41 33.28 34.12 34.91 35.65 36.35 37.00 37.61 38.16 38.66 39.11 39.51 39.85 40.14 40.37 40.54 40.65 40.69 40.68 40.60 40.46 40.25 39.97 39.63 39.21 38.72 38.16
2.23 4.20 7.86 11.29 12.94 14.55 16.12 17.66 19.16 20.62 22.05 23.44 24.80 26.11 27.39 28.63 29.82 30.98 32.09 33.16 34.18 35.15 36.07 36.95 37.77 38.54 39.26 39.92 40.53 41.07 41.56 41.98 42.35 42.64 42.87 43.04 43.13 43.16 43.11 42.99 42.79 42.51 42.16 41.73 41.21 40.61 39.93 39.16
2.41 4.53 8.49 12.21 13.99 15.73 17.44 19.10 20.72 22.30 23.84 25.34 26.80 28.21 29.58 30.90 32.18 33.41 34.58 35.71 36.78 37.80 38.76 39.67 40.52 41.30 42.02 42.68 43.27 43.79 44.24 44.62 44.93 45.16 45.32 45.39 45.39 45.30 45.13 44.87 44.52 44.08 43.55
2.62 4.95 9.28 13.34 15.30 17.21 19.07 20.88 22.65 24.37 26.05 27.68 29.26 30.78 32.26 33.68 35.05 36.36 37.61 38.80 39.93 40.99 41.98 42.91 43.77 44.55 45.25 45.88 46.43 46.90 47.29 47.58 47.79 47.91 47.94 47.87 47.70 47.44 47.07 46.60 46.02 45.33 44.53
3.05 5.77 10.84 15.60 17.88 20.11 22.28 24.39 26.44 28.44 30.37 32.24 34.04 35.77 37.44 39.03 40.55 41.99 43.34 44.62 45.81 46.90 47.91 48.82 49.63 50.34 50.94 51.44 51.83 52.10 52.25 52.28 52.19 51.97 51.62 51.14 50.52 49.76
3.48 6.58 12.38 17.83 20.44 22.97 25.44 27.83 30.15 32.39 34.56 36.64 38.64 40.54 42.36 44.08 45.70 47.21 48.62 49.92 51.10 52.16 53.10 53.90 54.58 55.12 55.51 55.76 55.86 55.81 55.59 55.21 54.67
3.99 7.56 14.22 20.47 23.45 26.35 29.15 31.86 34.48 36.99 39.40 41.70 43.89 45.95 47.89 49.71 51.38 52.92 54.30 55.54 56.61 57.52 58.25 58.81 59.19 59.37 59.36 59.15
4.58 8.68 16.34 23.50 26.90 30.20 33.37 36.42 39.34 42.13 44.78 47.28 49.62 51.80 53.80 55.63 57.27 58.71 59.94 60.96 61.76 62.33 62.65 62.73 62.55 62.10 61.37
5.25 9.95 18.73 26.90 30.77 34.48 38.04 41.44 44.66 47.70 50.55 53.19 55.61 57.81 59.77 61.47 62.91 64.08 64.95 65.53 65.79 65.72 65.31
SK
Where v > 42 m/s, please consult our Applications Engineering Department
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.14 0.19 0.29 0.57 0.01 0.02 0.04 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.60 0.61 0.62 0.63 0.64 0.65 0.66 0.67 0.68 0.69 0.70
0.90 1.22 1.86 3.67 0.06 0.13 0.26 0.39 0.45 0.51 0.58 0.64 0.71 0.77 0.84 0.90 0.96 1.03 1.09 1.16 1.22 1.29 1.35 1.41 1.48 1.54 1.61 1.67 1.74 1.80 1.86 1.93 1.99 2.06 2.12 2.19 2.25 2.31 2.38 2.44 2.51 2.57 2.64 2.70 2.77 2.83 2.89 2.96 3.02 3.09 3.15 3.22 3.28 3.34 3.41 3.47 3.54 3.60 3.67 3.73 3.79 3.86 3.92 3.99 4.05 4.12 4.18 4.24 4.31 4.37 4.44 4.50
1.28 1.73 2.65 5.20 0.09 0.18 0.37 0.55 0.64 0.73 0.82 0.91 1.00 1.10 1.19 1.28 1.37 1.46 1.55 1.64 1.73 1.83 1.92 2.01 2.10 2.19 2.28 2.37 2.46 2.56 2.65 2.74 2.83 2.92 3.01 3.10 3.19 3.29 3.38 3.47 3.56 3.65 3.74 3.83 3.92 4.02 4.11 4.20 4.29 4.38 4.47 4.56 4.66 4.75 4.84 4.93 5.02 5.11 5.20 5.29 5.39 5.48 5.57 5.66 5.75 5.84 5.93 6.02 6.12 6.21 6.30 6.39
v (m/s) Dynamically balanced (for details see DIN 2211)
86
Pulleys
1.57 2.13 3.25 6.38 0.11 0.22 0.45 0.67 0.78 0.90 1.01 1.12 1.23 1.34 1.45 1.57 1.68 1.79 1.90 2.01 2.13 2.24 2.35 2.46 2.57 2.69 2.80 2.91 3.02 3.13 3.25 3.36 3.47 3.58 3.69 3.80 3.92 4.03 4.14 4.25 4.36 4.48 4.59 4.70 4.81 4.92 5.04 5.15 5.26 5.37 5.48 5.60 5.71 5.82 5.93 6.04 6.16 6.27 6.38 6.49 6.60 6.71 6.83 6.94 7.05 7.16 7.27 7.39 7.50 7.61 7.72 7.83
Technical Manual V-Belts
Power Ratings optibelt SK section 8V/25N, 8V/25J Nominal Power Rating PN (kW) for
= 180째 and 8V 2500/6350 mm La
Statically balanced
v (m/s)
Pulleys
Table 31 nk
Datum diameter of small pulley dak (mm)
(min-1)
335
355
375
425
450
475
500
530
560
600
630
710
800
700 950 1450 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250
25.67 32.09 40.47 2.63 4.87 6.97 8.97 10.89 12.74 14.54 16.28 17.97 19.61 21.20 22.74 24.23 25.67 27.06 28.40 29.68 30.91 32.09 33.21 34.27 35.27 36.21 37.09 37.90 38.65 39.33 39.93 40.47 40.93 41.31 41.62 41.85 41.99 42.05 42.03 41.92 41.72 41.42 41.04 40.55 39.97 39.29 38.50 37.62
28.61 35.77 44.90 2.89 5.38 7.71 9.94 12.08 14.15 16.16 18.11 20.00 21.83 23.61 25.33 27.00 28.61 30.16 31.66 33.09 34.46 35.77 37.01 38.18 39.29 40.32 41.28 42.16 42.97 43.70 44.34 44.90 45.37 45.75 46.04 46.24 46.34 46.35 46.25 46.05 45.74 45.32 44.79 44.15 43.40 42.52 41.53 40.41
31.52 39.37 49.10 3.16 5.89 8.46 10.91 13.27 15.56 17.78 19.93 22.01 24.04 26.00 27.90 29.74 31.52 33.23 34.87 36.44 37.94 39.37 40.72 42.00 43.19 44.30 45.33 46.27 47.12 47.88 48.54 49.10 49.56 49.91 50.16 50.30 50.33 50.24 50.04 49.71 49.26 48.69 47.98 47.14 46.16 45.05 43.79 42.40
38.62 48.03 58.51 3.82 7.15 10.30 13.31 16.22 19.04 21.77 24.42 26.99 29.48 31.89 34.22 36.46 38.62 40.69 42.67 44.56 46.34 48.03 49.61 51.09 52.45 53.69 54.82 55.82 56.69 57.44 58.04 58.51 58.84 59.01 59.04 58.90 58.61 58.15 57.52 56.72 55.74 54.58 53.23
42.08 52.17 62.60 4.15 7.78 11.22 14.51 17.68 20.76 23.74 26.64 29.44 32.16 34.78 37.31 39.75 42.08 44.32 46.45 48.47 50.38 52.17 53.84 55.38 56.79 58.06 59.20 60.19 61.03 61.71 62.24 62.60 62.80 62.81 62.65 62.31 61.77 61.05 60.12 58.98 57.64 56.08 54.31
45.49 56.17 66.25 4.48 8.41 12.13 15.69 19.14 22.47 25.71 28.84 31.87 34.81 37.64 40.36 42.98 45.49 47.87 50.14 52.28 54.29 56.17 57.90 59.49 60.93 62.20 63.32 64.27 65.04 65.63 66.04 66.25 66.27 66.08 65.69 65.08 64.25 63.19
48.82 60.03 69.44 4.80 9.03 13.03 16.88 20.59 24.18 27.66 31.02 34.28 37.43 40.46 43.37 46.16 48.82 51.35 53.74 55.99 58.09 60.03 61.81 63.42 64.85 66.11 67.17 68.04 68.71 69.17 69.42 69.44 69.24 68.80 68.11 67.18 65.99 64.54
52.74 64.47 72.63 5.19 9.78 14.12 18.29 22.31 26.21 29.98 33.62 37.14 40.54 43.80 46.92 49.91 52.74 55.42 57.94 60.30 62.47 64.47 66.27 67.87 69.27 70.46 71.42 72.16 72.65 72.90 72.90 72.63
56.57 68.68 75.10 5.58 10.52 15.20 19.69 24.03 28.22 32.28 36.19 39.97 43.60 47.08 50.41 53.57 56.57 59.38 62.01 64.44 66.67 68.68 70.48 72.04 73.36 74.44 75.25 75.80 76.06 76.04 75.72 75.10
61.51 73.95 77.18 6.10 11.51 16.63 21.56 26.30 30.89 35.32 39.58 43.69 47.62 51.38 54.95 58.33 61.51 64.46 67.20 69.70 71.95 73.95 75.68 77.12 78.28 79.13 79.66 79.87 79.74 79.25
65.09 77.62 77.79 6.48 12.24 17.70 22.94 28.00 32.87 37.57 42.10 46.44 50.59 54.54 58.28 61.80 65.09 68.13 70.92 73.44 75.67 77.62 79.25 80.56 81.53 82.16 82.42 82.31 81.80 80.89 79.56 77.79
74.10 86.13
83.23 93.33
7.51 14.19 20.53 26.61 32.46 38.09 43.49 48.66 53.59 58.27 62.67 66.79 70.61 74.10 77.26 80.06 82.49 84.52 86.13 87.31 88.04 88.30 88.06 87.31 86.03
8.65 16.37 23.68 30.68 37.40 43.84 49.98 55.82 61.33 66.50 71.30 75.70 79.69 83.23 86.31 88.88 90.92 92.42 93.33 93.63 93.28 92.28 90.56 88.14
SK
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.28 0.38 5.38 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.46 0.49 0.51 0.53 0.55 0.57 0.59 0.61 0.63 0.65 0.67 0.69 0.71 0.73 0.75 0.77 0.79 0.81 0.83 0.85 0.87 0.89 0.91
1.83 2.48 6.60 0.13 0.26 0.39 0.52 0.65 0.78 0.91 1.05 1.18 1.31 1.44 1.57 1.70 1.83 1.96 2.09 2.22 2.35 2.48 2.61 2.74 2.88 3.01 3.14 3.27 3.40 3.53 3.66 3.79 3.92 4.05 4.18 4.31 4.44 4.57 4.70 4.84 4.97 5.10 5.23 5.36 5.49 5.62 5.75 5.88
2.60 3.52
3.18 4.32
0.19 0.23 0.37 0.45 0.56 0.68 0.74 0.91 0.93 1.14 1.11 1.36 1.30 1.59 1.48 1.82 1.67 2.05 1.86 2.27 2.04 2.50 2.23 2.73 2.41 2.96 2.60 3.18 2.78 3.41 2.97 3.64 3.15 3.87 3.34 4.09 3.52 4.32 3.71 4.55 3.90 4.78 4.08 5.00 4.27 5.23 4.45 5.46 4.64 5.69 4.82 5.91 5.01 6.14 5.19 6.37 5.38 6.60 5.57 6.82 5.75 7.05 5.94 7.28 6.12 7.51 6.31 7.73 6.49 7.96 6.68 8.19 6.86 8.42 7.05 8.64 7.23 8.87 7.42 9.10 7.61 9.33 7.79 9.55 7.98 9.78 8.16 10.01 8.35 10.23
Where v > 42 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see USA Standard RMA/MPTA)
Pulleys
87
Technical Manual V-Belts
Power Ratings optibelt RED POWER II Section SPZ, 3V/9N, 3V/9J Nominal Power Rating PN (kW) for
= 180° and Ld = 1600 mm
Statically balanced
v (m/s)
Pulleys
Table 32 nk
Datum diameter of small pulley ddk (mm)
(min-1)
63
71
80
85
90
95
100
112
125
132
140
150
160
180
200
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 7600 7800 8000 8200 8400
0.60 0.77 1.08 1.80 0.11 0.21 0.30 0.38 0.45 0.53 0.60 0.67 0.74 0.80 0.87 0.93 0.99 1.05 1.11 1.17 1.23 1.28 1.34 1.39 1.44 1.49 1.54 1.59 1.64 1.69 1.74 1.78 1.83 1.87 1.91 1.95 1.99 2.03 2.07 2.11 2.15 2.18 2.22 2.25 2.29 2.32 2.35 2.38 2.41 2.44 2.47 2.49 2.52 2.54 2.57 2.59 2.61 2.63 2.65 2.67 2.70 2.73 2.75 2.77 2.78 2.79 2.80 2.80 2.79 2.78 2.77 2.75 2.72 2.69
0.80 1.03 1.47 2.50 0.15 0.27 0.38 0.49 0.60 0.70 0.80 0.89 0.99 1.08 1.17 1.25 1.34 1.43 1.51 1.59 1.67 1.75 1.83 1.90 1.98 2.05 2.13 2.20 2.27 2.34 2.40 2.47 2.54 2.60 2.66 2.73 2.79 2.85 2.90 2.96 3.02 3.07 3.13 3.18 3.23 3.28 3.33 3.37 3.42 3.46 3.51 3.55 3.59 3.63 3.67 3.70 3.74 3.77 3.80 3.83 3.89 3.94 3.99 4.02 4.06 4.08 4.10 4.11 4.11 4.11 4.10 4.09 4.06 4.03
1.02 1.32 1.89 3.28 0.18 0.34 0.48 0.62 0.76 0.89 1.02 1.14 1.26 1.38 1.50 1.61 1.73 1.84 1.95 2.06 2.16 2.27 2.37 2.47 2.57 2.67 2.77 2.87 2.96 3.05 3.14 3.23 3.32 3.41 3.49 3.58 3.66 3.74 3.82 3.89 3.97 4.04 4.12 4.19 4.26 4.32 4.39 4.45 4.51 4.58 4.63 4.69 4.75 4.80 4.85 4.90 4.95 4.99 5.03 5.08 5.15 5.22 5.28 5.33 5.38 5.41 5.43 5.45 5.45 5.45 5.43 5.41 5.37 5.32
1.14 1.48 2.13 3.70 0.20 0.38 0.54 0.69 0.85 0.99 1.14 1.28 1.41 1.55 1.68 1.81 1.94 2.07 2.19 2.31 2.44 2.55 2.67 2.79 2.90 3.01 3.12 3.23 3.34 3.44 3.55 3.65 3.75 3.85 3.94 4.04 4.13 4.22 4.31 4.40 4.49 4.57 4.65 4.73 4.81 4.89 4.96 5.03 5.10 5.17 5.24 5.30 5.36 5.42 5.48 5.53 5.59 5.64 5.69 5.73 5.82 5.89 5.96 6.01 6.05 6.09 6.11 6.12 6.12 6.11 6.08 6.05 6.00 5.94
1.26 1.64 2.36 4.12 0.22 0.41 0.59 0.77 0.93 1.10 1.26 1.41 1.57 1.72 1.86 2.01 2.15 2.29 2.43 2.57 2.70 2.84 2.97 3.10 3.22 3.35 3.47 3.59 3.71 3.83 3.95 4.06 4.17 4.28 4.39 4.50 4.60 4.70 4.80 4.90 4.99 5.09 5.18 5.27 5.35 5.44 5.52 5.60 5.68 5.75 5.83 5.90 5.96 6.03 6.09 6.15 6.21 6.26 6.31 6.36 6.45 6.53 6.60 6.65 6.69 6.72 6.74 6.74 6.73 6.71 6.67 6.62 6.55 6.47
1.38 1.80 2.60 4.53 0.24 0.45 0.65 0.84 1.02 1.20 1.38 1.55 1.72 1.88 2.05 2.21 2.36 2.52 2.67 2.82 2.97 3.12 3.26 3.41 3.55 3.68 3.82 3.95 4.09 4.22 4.34 4.47 4.59 4.71 4.83 4.95 5.06 5.17 5.28 5.39 5.49 5.60 5.70 5.79 5.89 5.98 6.07 6.15 6.24 6.32 6.40 6.47 6.54 6.61 6.68 6.74 6.80 6.86 6.91 6.97 7.06 7.14 7.20 7.25 7.29 7.31 7.32 7.31 7.29 7.25 7.19 7.12 7.03 6.92
1.50 1.96 2.83 4.94 0.26 0.49 0.70 0.91 1.11 1.30 1.50 1.68 1.87 2.05 2.23 2.40 2.57 2.74 2.91 3.08 3.24 3.40 3.56 3.71 3.87 4.02 4.16 4.31 4.45 4.60 4.73 4.87 5.01 5.14 5.27 5.39 5.52 5.64 5.75 5.87 5.98 6.09 6.20 6.30 6.41 6.50 6.60 6.69 6.78 6.87 6.95 7.03 7.11 7.18 7.25 7.31 7.38 7.43 7.49 7.54 7.63 7.71 7.77 7.82 7.84 7.86 7.85 7.83 7.78 7.72 7.64 7.54 7.42 7.28
1.78 2.08 2.25 2.43 2.66 2.89 3.35 3.80 2.33 2.74 2.95 3.20 3.50 3.80 4.40 4.99 3.38 3.96 4.28 4.63 5.07 5.50 6.36 7.19 5.90 6.90 7.43 8.01 8.72 9.41 10.70 11.88 0.31 0.36 0.38 0.41 0.45 0.49 0.56 0.64 0.58 0.67 0.72 0.78 0.85 0.92 1.07 1.21 0.83 0.97 1.04 1.13 1.24 1.34 1.55 1.76 1.08 1.26 1.36 1.47 1.61 1.74 2.02 2.29 1.32 1.54 1.66 1.80 1.97 2.13 2.47 2.80 1.55 1.82 1.96 2.12 2.32 2.52 2.91 3.30 1.78 2.08 2.25 2.43 2.66 2.89 3.35 3.80 2.00 2.35 2.53 2.74 3.00 3.26 3.77 4.28 2.22 2.61 2.81 3.05 3.34 3.62 4.19 4.75 2.44 2.86 3.09 3.35 3.66 3.98 4.60 5.22 2.66 3.12 3.36 3.64 3.99 4.33 5.01 5.67 2.87 3.36 3.63 3.93 4.30 4.67 5.40 6.12 3.07 3.61 3.89 4.21 4.61 5.01 5.79 6.55 3.28 3.85 4.15 4.49 4.92 5.34 6.17 6.98 3.48 4.08 4.40 4.77 5.22 5.67 6.54 7.40 3.68 4.31 4.65 5.04 5.52 5.99 6.91 7.80 3.87 4.54 4.90 5.31 5.81 6.30 7.26 8.20 4.06 4.77 5.14 5.57 6.09 6.61 7.61 8.58 4.25 4.99 5.38 5.82 6.37 6.91 7.95 8.96 4.44 5.21 5.62 6.08 6.64 7.20 8.28 9.32 4.62 5.42 5.85 6.32 6.91 7.49 8.60 9.67 4.80 5.63 6.07 6.57 7.17 7.77 8.91 10.01 4.98 5.84 6.29 6.80 7.43 8.04 9.22 10.33 5.15 6.04 6.51 7.03 7.68 8.31 9.51 10.64 5.32 6.24 6.72 7.26 7.92 8.56 9.79 10.94 5.49 6.43 6.93 7.48 8.16 8.82 10.07 11.23 5.66 6.62 7.13 7.70 8.39 9.06 10.33 11.50 5.82 6.81 7.33 7.91 8.61 9.29 10.58 11.76 5.98 6.99 7.52 8.11 8.83 9.52 10.82 12.00 6.13 7.17 7.71 8.31 9.04 9.74 11.05 12.23 6.28 7.34 7.89 8.50 9.24 9.95 11.27 12.44 6.43 7.51 8.07 8.69 9.44 10.15 11.47 12.64 6.58 7.67 8.24 8.87 9.63 10.35 11.67 12.81 6.72 7.83 8.41 9.05 9.81 10.53 11.85 12.98 6.85 7.99 8.57 9.21 9.98 10.70 12.01 13.12 6.99 8.14 8.73 9.38 10.15 10.87 12.17 13.25 7.12 8.28 8.88 9.53 10.30 11.02 12.31 13.36 7.24 8.42 9.02 9.68 10.45 11.17 12.43 13.45 7.37 8.56 9.16 9.82 10.59 11.31 12.55 13.52 7.49 8.68 9.29 9.95 10.72 11.43 12.65 13.57 7.60 8.81 9.42 10.08 10.84 11.54 12.73 13.60 7.71 8.93 9.54 10.20 10.96 11.65 12.80 13.61 7.82 9.04 9.65 10.31 11.06 11.74 12.85 13.60 7.92 9.15 9.76 10.41 11.16 11.82 12.89 13.57 8.02 9.25 9.86 10.51 11.24 11.89 12.91 13.51 8.11 9.34 9.95 10.59 11.32 11.95 12.91 13.44 8.20 9.43 10.04 10.67 11.38 12.00 12.90 13.34 8.29 9.52 10.12 10.74 11.44 12.03 12.87 13.22 8.37 9.59 10.19 10.81 11.49 12.05 12.82 13.07 8.45 9.67 10.25 10.86 11.52 12.06 12.76 12.90 8.52 9.73 10.31 10.91 11.54 12.06 12.68 12.71 8.58 9.79 10.36 10.94 11.56 12.04 12.58 12.49 8.64 9.84 10.40 10.97 11.56 12.01 12.46 8.70 9.89 10.44 10.99 11.55 11.97 12.32 8.75 9.93 10.47 11.00 11.53 11.91 12.16 8.80 9.96 10.48 11.00 11.50 11.84 11.99 8.88 10.00 10.50 10.97 11.40 11.65 11.57 8.94 10.01 10.48 10.90 11.25 11.41 8.97 10.00 10.42 10.79 11.06 11.11 8.99 9.95 10.33 10.63 10.81 10.74 8.98 9.88 10.20 10.44 10.51 8.95 9.77 10.04 10.20 10.15 8.89 9.62 9.84 9.91 9.74 vmax â&#x2030;¤ 55 m/s 8.81 9.45 9.59 9.58 8.70 9.24 9.31 9.19 8.57 8.99 8.98 Where v > 42 m/s, 8.41 8.71 8.61 please consult our 8.22 8.38 Applications Engineering 8.01 8.03 7.77 7.63 Department
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.01 0.01 0.02 0.04 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.12 0.12
0.06 0.09 0.13 0.26 0.01 0.02 0.03 0.04 0.05 0.06 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.54 0.56 0.57 0.59 0.61 0.63 0.65 0.67 0.69 0.70 0.72 0.74 0.76 0.78
0.09 0.12 0.19 0.37 0.01 0.03 0.04 0.05 0.07 0.08 0.09 0.11 0.12 0.13 0.14 0.16 0.17 0.18 0.20 0.21 0.22 0.24 0.25 0.26 0.28 0.29 0.30 0.32 0.33 0.34 0.35 0.37 0.38 0.39 0.41 0.42 0.43 0.45 0.46 0.47 0.49 0.50 0.51 0.53 0.54 0.55 0.57 0.58 0.59 0.60 0.62 0.63 0.64 0.66 0.67 0.68 0.70 0.71 0.72 0.74 0.76 0.79 0.81 0.84 0.87 0.89 0.92 0.95 0.97 1.00 1.03 1.05 1.08 1.10
RED POWER II
0.11 0.15 0.23 0.46 0.02 0.03 0.05 0.06 0.08 0.10 0.11 0.13 0.15 0.16 0.18 0.19 0.21 0.23 0.24 0.26 0.27 0.29 0.31 0.32 0.34 0.35 0.37 0.39 0.40 0.42 0.44 0.45 0.47 0.48 0.50 0.52 0.53 0.55 0.56 0.58 0.60 0.61 0.63 0.64 0.66 0.68 0.69 0.71 0.73 0.74 0.76 0.77 0.79 0.81 0.82 0.84 0.85 0.87 0.89 0.90 0.93 0.97 1.00 1.03 1.06 1.10 1.13 1.16 1.19 1.22 1.26 1.29 1.32 1.35
v (m/s) Dynamically balanced (for details see DIN 2211)
88
Pulleys
Note: Pulley diameters shown are outside diameters for sections 3V/9N, 3V/9J.
Technical Manual V-Belts
Power Ratings optibelt RED POWER II Section SPA Nominal Power Rating PN (kW) for
= 180° and Ld = 2500 mm
Statically balanced
v (m/s)
Pulleys
Table 33 nk
Datum diameter of small pulley ddk (mm)
(min-1)
90
95
100
112
125
132
140
150
160
180
200
224
250
280
315
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000
1.34 1.72 2.40 3.91 0.26 0.47 0.66 0.84 1.02 1.18 1.34 1.50 1.64 1.79 1.93 2.07 2.20 2.33 2.46 2.59 2.71 2.83 2.94 3.06 3.17 3.27 3.38 3.48 3.58 3.68 3.77 3.87 3.96 4.04 4.13 4.21 4.29 4.37 4.44 4.51 4.58 4.65 4.71 4.77 4.83 4.88 4.94 4.99 5.03 5.07 5.12 5.15 5.19 5.22 5.25 5.27 5.29 5.31 5.33 5.34 5.35 5.35 5.36 5.36 5.35 5.34 5.33 5.31 5.30 5.27 5.25 5.22 5.18 5.14
1.54 1.98 2.78 4.61 0.29 0.53 0.75 0.96 1.16 1.35 1.54 1.72 1.89 2.06 2.23 2.39 2.55 2.70 2.86 3.00 3.15 3.29 3.43 3.57 3.70 3.83 3.96 4.08 4.20 4.32 4.44 4.55 4.66 4.77 4.87 4.97 5.07 5.17 5.26 5.35 5.43 5.52 5.60 5.67 5.75 5.82 5.89 5.95 6.01 6.07 6.12 6.17 6.22 6.26 6.30 6.34 6.37 6.40 6.42 6.45 6.46 6.48 6.49 6.49 6.49 6.49 6.49 6.48 6.46 6.44 6.42 6.39 6.36 6.32
1.73 2.24 3.16 5.29 0.32 0.59 0.84 1.08 1.30 1.52 1.73 1.94 2.14 2.34 2.53 2.71 2.90 3.07 3.25 3.42 3.59 3.76 3.92 4.08 4.23 4.38 4.53 4.68 4.82 4.96 5.09 5.23 5.36 5.48 5.61 5.73 5.84 5.96 6.07 6.17 6.27 6.37 6.47 6.56 6.65 6.74 6.82 6.89 6.97 7.04 7.11 7.17 7.23 7.28 7.33 7.38 7.42 7.46 7.49 7.52 7.54 7.56 7.58 7.59 7.60 7.60 7.60 7.59 7.58 7.56 7.54 7.51 7.48 7.44
2.20 2.86 4.07 6.91 0.40 0.74 1.05 1.36 1.65 1.93 2.20 2.47 2.73 2.98 3.23 3.48 3.72 3.96 4.19 4.41 4.64 4.86 5.07 5.28 5.49 5.69 5.89 6.09 6.28 6.46 6.65 6.83 7.00 7.17 7.34 7.50 7.66 7.81 7.96 8.10 8.24 8.38 8.51 8.63 8.76 8.87 8.98 9.09 9.19 9.29 9.38 9.46 9.54 9.62 9.69 9.75 9.81 9.86 9.91 9.95 9.98 10.01 10.04 10.05 10.06 10.07 10.06 10.05 10.04 10.01 9.98 9.95 9.90 9.85
2.70 3.52 5.04 8.63 0.48 0.89 1.28 1.65 2.01 2.36 2.70 3.04 3.36 3.68 3.99 4.30 4.60 4.90 5.19 5.48 5.76 6.03 6.30 6.57 6.83 7.09 7.34 7.58 7.82 8.06 8.29 8.52 8.74 8.95 9.16 9.36 9.56 9.75 9.94 10.12 10.29 10.46 10.62 10.78 10.93 11.07 11.21 11.34 11.46 11.58 11.69 11.79 11.89 11.97 12.05 12.13 12.19 12.25 12.30 12.34 12.37 12.40 12.42 12.42 12.42 12.41 12.40 12.37 12.34 12.29 12.24 12.17 12.10 12.02
2.97 3.88 5.56 9.53 0.52 0.98 1.40 1.81 2.21 2.60 2.97 3.34 3.70 4.05 4.40 4.74 5.07 5.40 5.72 6.04 6.35 6.66 6.96 7.25 7.54 7.83 8.10 8.38 8.64 8.90 9.16 9.41 9.65 9.89 10.12 10.34 10.56 10.77 10.97 11.17 11.36 11.55 11.72 11.89 12.05 12.21 12.35 12.49 12.63 12.75 12.86 12.97 13.07 13.16 13.24 13.31 13.38 13.43 13.48 13.52 13.54 13.56 13.57 13.57 13.55 13.53 13.50 13.46 13.40 13.34 13.26 13.18 13.08 12.97
3.28 4.28 6.15 10.54 0.57 1.07 1.54 2.00 2.43 2.86 3.28 3.68 4.08 4.48 4.86 5.24 5.61 5.97 6.33 6.68 7.03 7.37 7.70 8.03 8.35 8.66 8.97 9.27 9.57 9.85 10.14 10.41 10.68 10.94 11.19 11.44 11.67 11.90 12.13 12.34 12.55 12.75 12.94 13.12 13.29 13.46 13.61 13.76 13.90 14.03 14.14 14.25 14.35 14.44 14.52 14.59 14.65 14.69 14.73 14.76 14.77 14.77 14.77 14.75 14.71 14.67 14.61 14.55 14.47 14.37 14.27 14.15 14.02 13.87
3.66 4.78 6.88 11.79 0.64 1.19 1.72 2.22 2.71 3.19 3.66 4.11 4.56 5.00 5.43 5.86 6.27 6.68 7.08 7.48 7.86 8.25 8.62 8.98 9.34 9.69 10.04 10.37 10.70 11.02 11.33 11.64 11.93 12.22 12.50 12.77 13.03 13.28 13.52 13.76 13.98 14.19 14.40 14.59 14.78 14.95 15.11 15.26 15.40 15.53 15.65 15.75 15.84 15.92 15.99 16.05 16.09 16.12 16.14 16.15 16.14 16.11 16.08 16.03 15.96 15.88 15.78 15.67 15.55 15.41 15.25 15.08 14.89 14.69
4.03 5.28 7.61 13.00 0.70 1.31 1.89 2.45 2.99 3.52 4.03 4.54 5.04 5.52 6.00 6.47 6.93 7.38 7.83 8.26 8.69 9.11 9.52 9.93 10.32 10.71 11.09 11.45 11.81 12.16 12.50 12.84 13.16 13.47 13.77 14.06 14.34 14.61 14.87 15.12 15.35 15.58 15.79 15.99 16.18 16.35 16.52 16.66 16.80 16.92 17.03 17.13 17.21 17.27 17.32 17.36 17.38 17.38 17.37 17.35 17.30 17.24 17.17 17.08 16.96 16.84 16.69 16.53 16.34
4.78 6.27 9.03 15.33 0.82 1.54 2.23 2.90 3.54 4.17 4.78 5.39 5.98 6.56 7.12 7.68 8.23 8.77 9.30 9.81 10.32 10.81 11.30 11.77 12.24 12.69 13.13 13.56 13.97 14.37 14.76 15.14 15.51 15.86 16.20 16.52 16.83 17.12 17.40 17.66 17.91 18.14 18.35 18.55 18.73 18.89 19.04 19.17 19.28 19.36 19.43 19.49 19.52 19.53 19.52 19.48 19.43 19.36 19.26 19.14 19.00 18.83
5.53 7.24 10.43 17.52 0.94 1.78 2.57 3.34 4.09 4.81 5.53 6.22 6.91 7.58 8.23 8.88 9.51 10.13 10.73 11.33 11.91 12.47 13.03 13.56 14.09 14.60 15.09 15.57 16.03 16.48 16.91 17.32 17.72 18.09 18.45 18.79 19.11 19.41 19.69 19.95 20.19 20.41 20.60 20.77 20.92 21.05 21.15 21.23 21.28 21.30 21.30 21.28 21.22 21.14 21.03 20.90
6.41 8.40 12.08 19.96 1.09 2.06 2.98 3.87 4.73 5.58 6.41 7.22 8.01 8.78 9.54 10.29 11.02 11.73 12.42 13.10 13.76 14.41 15.03 15.64 16.22 16.79 17.34 17.87 18.37 18.85 19.31 19.75 20.17 20.55 20.92 21.26 21.57 21.85 22.11 22.34 22.53 22.70 22.84 22.95 23.02 23.07 23.08 23.05 22.99 22.90
7.35 9.63 13.81 22.35 1.24 2.35 3.41 4.44 5.43 6.40 7.35 8.28 9.18 10.07 10.94 11.78 12.61 13.42 14.20 14.96 15.70 16.42 17.11 17.78 18.43 19.04 19.63 20.19 20.73 21.23 21.70 22.14 22.55 22.93 23.27 23.57 23.84 24.08 24.27 24.43 24.54 24.62 24.65 24.64 24.59 24.49
8.42 11.03 15.75 24.75 1.42 2.70 3.91 5.08 6.23 7.34 8.42 9.48 10.52 11.53 12.51 13.47 14.41 15.31 16.19 17.04 17.86 18.64 19.40 20.12 20.81 21.46 22.08 22.66 23.19 23.69 24.15 24.56 24.93 25.25 25.52 25.75 25.93 26.05 26.12 26.14 26.11
9.66 12.62 17.93 27.01 1.63 3.09 4.49 5.83 7.14 8.42 9.66 10.87 12.05 13.19 14.31 15.39 16.43 17.44 18.40 19.34 20.24 21.08 21.89 22.65 23.36 24.03 24.64 25.20 25.70 26.15 26.54 26.87 27.14 27.34 27.47 27.54 27.54
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.02 0.03 0.05 0.09 0.00 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.19 0.20 0.20 0.20 0.21 0.21 0.21 0.22 0.22 0.22 0.23 0.23 0.23
0.15 0.20 0.31 0.61 0.02 0.04 0.06 0.09 0.11 0.13 0.15 0.17 0.19 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.37 0.39 0.41 0.43 0.45 0.47 0.50 0.52 0.54 0.56 0.58 0.60 0.62 0.65 0.67 0.69 0.71 0.73 0.75 0.77 0.80 0.82 0.84 0.86 0.88 0.90 0.93 0.95 0.97 0.99 1.01 1.03 1.05 1.08 1.10 1.12 1.14 1.16 1.18 1.21 1.23 1.25 1.27 1.29 1.31 1.33 1.36 1.38 1.40 1.42 1.44 1.46 1.49 1.51
0.21 0.29 0.44 0.87 0.03 0.06 0.09 0.12 0.15 0.18 0.21 0.24 0.27 0.31 0.34 0.37 0.40 0.43 0.46 0.49 0.52 0.55 0.58 0.61 0.64 0.67 0.70 0.73 0.76 0.79 0.82 0.86 0.89 0.92 0.95 0.98 1.01 1.04 1.07 1.10 1.13 1.16 1.19 1.22 1.25 1.28 1.31 1.34 1.37 1.41 1.44 1.47 1.50 1.53 1.56 1.59 1.62 1.65 1.68 1.71 1.74 1.77 1.80 1.83 1.86 1.89 1.92 1.96 1.99 2.02 2.05 2.08 2.11 2.14
RED POWER II
vmax ≤ 55 m/s Where v > 42 m/s, please consult our Applications Engineering Department
0.26 0.36 0.54 1.07 0.04 0.07 0.11 0.15 0.19 0.22 0.26 0.30 0.34 0.37 0.41 0.45 0.49 0.52 0.56 0.60 0.64 0.67 0.71 0.75 0.79 0.82 0.86 0.90 0.94 0.97 1.01 1.05 1.09 1.12 1.16 1.20 1.24 1.27 1.31 1.35 1.39 1.42 1.46 1.50 1.54 1.57 1.61 1.65 1.69 1.72 1.76 1.80 1.84 1.87 1.91 1.95 1.99 2.02 2.06 2.10 2.13 2.17 2.21 2.25 2.28 2.32 2.36 2.40 2.43 2.47 2.51 2.55 2.58 2.62
v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
89
Technical Manual V-Belts
Power Ratings optibelt RED POWER II Section SPB, 5V/15N, 5V/15J Nominal Power Rating PN (kW) for
= 180° and Ld = 3550 mm
Statically balanced
v (m/s)
Pulleys
Table 34 nk
Datum diameter of small pulley ddk (mm)
(min-1)
140
150
160
180
200
224
250
280
315
335
355
375
400
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500
4.02 5.19 7.33 12.11 0.74 1.36 1.94 2.49 3.02 3.52 4.02 4.50 4.96 5.42 5.86 6.29 6.72 7.13 7.54 7.93 8.32 8.69 9.06 9.42 9.77 10.11 10.44 10.77 11.08 11.39 11.68 11.97 12.24 12.51 12.76 13.01 13.24 13.47 13.68 13.89 14.08 14.26 14.43 14.59 14.74 14.87 15.00 15.11 15.20 15.29 15.36 15.42 15.47 15.50 15.52 15.53 15.52 15.50 15.46
4.64 6.02 8.55 14.21 0.84 1.56 2.23 2.86 3.47 4.07 4.64 5.20 5.75 6.28 6.81 7.32 7.82 8.31 8.78 9.25 9.71 10.16 10.59 11.02 11.44 11.84 12.24 12.62 12.99 13.36 13.71 14.05 14.38 14.69 15.00 15.29 15.57 15.84 16.10 16.34 16.57 16.79 16.99 17.18 17.35 17.52 17.66 17.79 17.91 18.01 18.10 18.17 18.22 18.26 18.28 18.29 18.28 18.25 18.20
5.27 6.84 9.75 16.28 0.94 1.75 2.51 3.23 3.93 4.61 5.27 5.91 6.53 7.15 7.75 8.33 8.91 9.47 10.02 10.56 11.09 11.60 12.11 12.60 13.08 13.55 14.00 14.45 14.88 15.29 15.70 16.09 16.47 16.83 17.18 17.52 17.84 18.15 18.44 18.72 18.98 19.23 19.46 19.67 19.87 20.05 20.21 20.35 20.48 20.59 20.68 20.75 20.80 20.84 20.85 20.84 20.82 20.77 20.70
6.50 8.48 12.12 20.29 1.14 2.14 3.07 3.97 4.84 5.68 6.50 7.30 8.09 8.86 9.61 10.35 11.07 11.78 12.47 13.14 13.81 14.45 15.09 15.70 16.30 16.89 17.46 18.01 18.55 19.07 19.57 20.05 20.52 20.96 21.39 21.80 22.19 22.56 22.91 23.24 23.54 23.83 24.09 24.33 24.55 24.74 24.91 25.06 25.18 25.28 25.35 25.39 25.41 25.40 25.36 25.30 25.20 25.08 24.93
7.73 10.09 14.46 24.11 1.34 2.52 3.63 4.70 5.74 6.74 7.73 8.69 9.63 10.55 11.45 12.33 13.20 14.04 14.87 15.68 16.47 17.24 18.00 18.73 19.44 20.13 20.81 21.46 22.09 22.69 23.28 23.84 24.37 24.88 25.37 25.83 26.27 26.68 27.06 27.42 27.74 28.04 28.30 28.54 28.75 28.92 29.06 29.17 29.25 29.29 29.30 29.27 29.21 29.11 28.97 28.80
9.18 12.01 17.21 28.43 1.58 2.98 4.30 5.57 6.81 8.01 9.18 10.33 11.45 12.55 13.63 14.68 15.71 16.72 17.70 18.66 19.60 20.51 21.39 22.25 23.09 23.90 24.67 25.43 26.15 26.84 27.50 28.13 28.73 29.29 29.82 30.32 30.78 31.20 31.59 31.94 32.25 32.52 32.75 32.94 33.08 33.18 33.24 33.25 33.22 33.14
10.74 14.05 20.13 32.78 1.84 3.47 5.02 6.51 7.96 9.37 10.74 12.09 13.41 14.69 15.95 17.18 18.38 19.56 20.70 21.81 22.89 23.94 24.96 25.94 26.88 27.80 28.67 29.51 30.31 31.06 31.78 32.45 33.09 33.67 34.21 34.71 35.15 35.55 35.89 36.19 36.43 36.61 36.74 36.81 36.83 36.79
12.52 16.38 23.41 37.30 2.13 4.03 5.84 7.58 9.27 10.92 12.52 14.09 15.63 17.13 18.59 20.01 21.40 22.75 24.06 25.34 26.57 27.76 28.90 30.00 31.05 32.06 33.01 33.92 34.77 35.56 36.30 36.98 37.61 38.17 38.67 39.10 39.47 39.77 40.00 40.15 40.24
14.57 19.05 27.12 41.87 2.47 4.68 6.78 8.81 10.78 12.70 14.57 16.40 18.18 19.91 21.60 23.24 24.83 26.37 27.86 29.30 30.68 32.00 33.26 34.47 35.60 36.68 37.68 38.61 39.47 40.26 40.96 41.59 42.13 42.59 42.96 43.24 43.42
15.73 20.55 29.18 44.11 2.67 5.05 7.32 9.52 11.64 13.72 15.73 17.70 19.61 21.48 23.29 25.04 26.74 28.38 29.96 31.48 32.93 34.32 35.64 36.88 38.05 39.14 40.14 41.07 41.90 42.65 43.31 43.86 44.32 44.68 44.93
16.88 22.04 31.19 46.05 2.86 5.42 7.86 10.21 12.50 14.72 16.88 18.99 21.04 23.02 24.95 26.82 28.62 30.35 32.02 33.61 35.12 36.56 37.91 39.18 40.37 41.45 42.45 43.34 44.14 44.82 45.40 45.86 46.21
18.02 23.51 33.16
19.44 25.32 35.54
3.05 5.79 8.39 10.91 13.35 15.72 18.02 20.27 22.44 24.55 26.59 28.56 30.46 32.28 34.02 35.67 37.24 38.71 40.10 41.38 42.55 43.63 44.59 45.43 46.16 46.76 47.23 47.57
3.29 6.24 9.06 11.77 14.40 16.96 19.44 21.85 24.18 26.43 28.61 30.70 32.71 34.62 36.44 38.16 39.78 41.28 42.68 43.95 45.10 46.13 47.01 47.76 48.37 48.83
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.05 0.07 0.11 0.21 0.01 0.01 0.02 0.03 0.04 0.04 0.05 0.06 0.07 0.07 0.08 0.09 0.10 0.10 0.11 0.12 0.12 0.13 0.14 0.15 0.15 0.16 0.17 0.18 0.18 0.19 0.20 0.21 0.21 0.22 0.23 0.23 0.24 0.25 0.26 0.26 0.27 0.28 0.29 0.29 0.30 0.31 0.32 0.32 0.33 0.34 0.34 0.35 0.36 0.37 0.37 0.38 0.39 0.40 0.40
0.33 0.45 0.69 1.35 0.05 0.09 0.14 0.19 0.24 0.28 0.33 0.38 0.43 0.47 0.52 0.57 0.62 0.66 0.71 0.76 0.81 0.85 0.90 0.95 0.99 1.04 1.09 1.14 1.18 1.23 1.28 1.33 1.37 1.42 1.47 1.52 1.56 1.61 1.66 1.71 1.75 1.80 1.85 1.89 1.94 1.99 2.04 2.08 2.13 2.18 2.23 2.27 2.32 2.37 2.42 2.46 2.51 2.56 2.61
0.47 0.64 0.97 1.92 0.07 0.13 0.20 0.27 0.34 0.40 0.47 0.54 0.61 0.67 0.74 0.81 0.87 0.94 1.01 1.08 1.14 1.21 1.28 1.34 1.41 1.48 1.55 1.61 1.68 1.75 1.82 1.88 1.95 2.02 2.08 2.15 2.22 2.29 2.35 2.42 2.49 2.55 2.62 2.69 2.76 2.82 2.89 2.96 3.03 3.09 3.16 3.23 3.29 3.36 3.43 3.50 3.56 3.63 3.70
RED POWER II
0.58 0.78 1.20 2.35 0.08 0.16 0.25 0.33 0.41 0.49 0.58 0.66 0.74 0.82 0.91 0.99 1.07 1.15 1.24 1.32 1.40 1.48 1.57 1.65 1.73 1.81 1.90 1.98 2.06 2.14 2.23 2.31 2.39 2.47 2.56 2.64 2.72 2.80 2.89 2.97 3.05 3.13 3.21 3.30 3.38 3.46 3.54 3.63 3.71 3.79 3.87 3.96 4.04 4.12 4.20 4.29 4.37 4.45 4.53
vmax â&#x2030;¤ 55 m/s Where v > 42 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
90
Pulleys
Note: Pulley diameters shown are outside diameters for sections 5V/15N, 5V/15J .
Technical Manual V-Belts
Power Ratings optibelt RED POWER II Section SPC Nominal Power Rating PN (kW) for
= 180° and Ld = 5600 mm
Statically balanced
v (m/s)
Pulleys
Table 35 nk
Datum diameter of small pulley ddk (mm)
(min-1)
224
250
280
315
335
355
375
400
450
500
560
630
710
700 950 1450 2850 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 3050 3100 3150 3200 3250 3300 3350 3400 3450 3500
11.09 14.23 19.73 29.03 1.12 2.07 2.96 3.80 4.61 5.40 6.17 6.92 7.65 8.36 9.06 9.75 10.43 11.09 11.74 12.38 13.01 13.63 14.23 14.83 15.41 15.99 16.56 17.11 17.65 18.19 18.71 19.22 19.73 20.22 20.70 21.17 21.63 22.08 22.51 22.94 23.35 23.76 24.15 24.53 24.90 25.25 25.60 25.93 26.25 26.55 26.84 27.12 27.39 27.64 27.88 28.11 28.32 28.52 28.70 28.87 29.03 29.17 29.29 29.40 29.50 29.58 29.64 29.69 29.72 29.73 29.73 29.71 29.68 29.63
13.84 17.84 24.86 36.59 1.35 2.52 3.62 4.67 5.68 6.67 7.63 8.57 9.49 10.39 11.28 12.15 13.00 13.84 14.67 15.48 16.28 17.07 17.84 18.60 19.35 20.08 20.81 21.51 22.21 22.89 23.56 24.22 24.86 25.49 26.10 26.71 27.29 27.86 28.42 28.97 29.50 30.01 30.51 30.99 31.46 31.91 32.34 32.76 33.16 33.55 33.92 34.27 34.60 34.91 35.21 35.49 35.75 35.99 36.21 36.41 36.59 36.75 36.90 37.02 37.12 37.20 37.25 37.29 37.31 37.30 37.27 37.21 37.14 37.04
16.98 21.94 30.63 44.44 1.63 3.04 4.38 5.66 6.90 8.11 9.30 10.45 11.59 12.71 13.80 14.88 15.94 16.98 18.00 19.01 20.01 20.98 21.94 22.88 23.81 24.72 25.62 26.49 27.36 28.20 29.03 29.84 30.63 31.40 32.16 32.90 33.62 34.32 35.00 35.66 36.30 36.92 37.52 38.11 38.66 39.20 39.72 40.21 40.68 41.13 41.56 41.96 42.33 42.69 43.01 43.32 43.59 43.85 44.07 44.27 44.44 44.59 44.70 44.79 44.85 44.88 44.88 44.85 44.79 44.70 44.58 44.43 44.25 44.03
20.59 26.64 37.14 52.30 1.94 3.64 5.26 6.81 8.32 9.79 11.23 12.64 14.02 15.38 16.72 18.03 19.32 20.59 21.84 23.07 24.28 25.47 26.64 27.79 28.91 30.02 31.10 32.17 33.21 34.22 35.22 36.19 37.14 38.07 38.97 39.84 40.70 41.52 42.32 43.09 43.84 44.56 45.25 45.91 46.55 47.15 47.72 48.27 48.78 49.26 49.71 50.12 50.51 50.85 51.17 51.45 51.69 51.90 52.07 52.20 52.30 52.36 52.38 52.36 52.30 52.20 52.05 51.87 51.64 51.38
22.64 29.28 40.75 56.11 2.12 3.98 5.75 7.46 9.12 10.74 12.32 13.87 15.40 16.89 18.37 19.81 21.24 22.64 24.01 25.36 26.69 28.00 29.28 30.54 31.78 32.99 34.17 35.34 36.47 37.58 38.67 39.72 40.75 41.75 42.73 43.67 44.59 45.47 46.33 47.15 47.94 48.70 49.43 50.12 50.78 51.40 51.99 52.54 53.05 53.53 53.97 54.37 54.73 55.05 55.33 55.57 55.76 55.92 56.03 56.09 56.11 56.08 56.01 55.89 55.73 55.51
24.66 31.90 44.28 59.39 2.30 4.32 6.25 8.11 9.92 11.68 13.41 15.10 16.77 18.40 20.01 21.58 23.14 24.66 26.16 27.63 29.08 30.50 31.90 33.26 34.60 35.92 37.20 38.45 39.68 40.88 42.04 43.18 44.28 45.35 46.39 47.39 48.36 49.30 50.20 51.06 51.89 52.67 53.42 54.13 54.80 55.43 56.01 56.56 57.06 57.52 57.93 58.29 58.61 58.88 59.11 59.28 59.41 59.48 59.50 59.47 59.39 59.26 59.07
26.67 34.48 47.72
29.16 37.66 51.90
34.06 43.88 59.81
38.86 49.88 67.09
44.48 56.80 74.92
50.84 64.44 82.69
57.82 72.55 89.59
2.47 4.66 6.75 8.76 10.71 12.63 14.50 16.33 18.13 19.90 21.64 23.34 25.02 26.67 28.29 29.88 31.44 32.98 34.48 35.95 37.39 38.80 40.18 41.52 42.83 44.11 45.35 46.55 47.72 48.85 49.95 51.00 52.02 52.99 53.93 54.82 55.66 56.47 57.23 57.94 58.60 59.22 59.79 60.31 60.78 61.20 61.56 61.87 62.13 62.33 62.48 62.57 62.60 62.57 62.48 62.33
2.69 5.09 7.36 9.56 11.71 13.80 15.84 17.85 19.82 21.76 23.66 25.53 27.36 29.16 30.93 32.66 34.36 36.03 37.66 39.26 40.82 42.34 43.83 45.27 46.68 48.05 49.37 50.66 51.90 53.09 54.25 55.35 56.41 57.42 58.38 59.29 60.14 60.95 61.70 62.40 63.04 63.62 64.14 64.61 65.01 65.36 65.63 65.85 66.00 66.08 66.10 66.05
3.13 5.93 8.59 11.16 13.67 16.12 18.52 20.87 23.17 25.44 27.66 29.83 31.97 34.06 36.11 38.12 40.09 42.00 43.88 45.70 47.48 49.21 50.89 52.51 54.08 55.60 57.06 58.47 59.81 61.09 62.31 63.47 64.56 65.59 66.54 67.43 68.25 68.99 69.65 70.24 70.75 71.19 71.54 71.80 71.98 72.08
3.57 6.76 9.80 12.75 15.62 18.42 21.16 23.85 26.48 29.06 31.59 34.07 36.49 38.86 41.18 43.44 45.65 47.80 49.88 51.91 53.88 55.77 57.61 59.37 61.06 62.69 64.23 65.70 67.09 68.40 69.62 70.77 71.82 72.78 73.65 74.43 75.11 75.69 76.17 76.54 76.81 76.98
4.09 7.75 11.25 14.64 17.94 21.15 24.30 27.38 30.40 33.34 36.23 39.05 41.80 44.48 47.09 49.63 52.10 54.49 56.80 59.03 61.17 63.22 65.19 67.06 68.84 70.52 72.09 73.56 74.92 76.17 77.31 78.33 79.22 80.00 80.64 81.16 81.54
4.69 8.90 12.93 16.82 20.61 24.31 27.92 31.44 34.89 38.25 41.53 44.72 47.82 50.84 53.76 56.58 59.30 61.92 64.44 66.83 69.12 71.28 73.32 75.23 77.01 78.64 80.14 81.49 82.69 83.74 84.62 85.34 85.90
5.37 10.20 14.82 19.29 23.63 27.86 31.98 36.00 39.92 43.72 47.42 51.01 54.48 57.82 61.04 64.13 67.08 69.89 72.55 75.0 77.40 79.57 81.57 83.40 85.03 86.48 87.72 88.76 89.59
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.14 0.19 0.29 0.57 0.01 0.02 0.04 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.60 0.61 0.62 0.63 0.64 0.65 0.66 0.67 0.68 0.69 0.70
0.90 1.22 1.86 3.67 0.06 0.13 0.26 0.39 0.45 0.51 0.58 0.64 0.71 0.77 0.84 0.90 0.96 1.03 1.09 1.16 1.22 1.29 1.35 1.41 1.48 1.54 1.61 1.67 1.74 1.80 1.86 1.93 1.99 2.06 2.12 2.19 2.25 2.31 2.38 2.44 2.51 2.57 2.64 2.70 2.77 2.83 2.89 2.96 3.02 3.09 3.15 3.22 3.28 3.34 3.41 3.47 3.54 3.60 3.67 3.73 3.79 3.86 3.92 3.99 4.05 4.12 4.18 4.24 4.31 4.37 4.44 4.50
1.28 1.73 2.65 5.20 0.09 0.18 0.37 0.55 0.64 0.73 0.82 0.91 1.00 1.10 1.19 1.28 1.37 1.46 1.55 1.64 1.73 1.83 1.92 2.01 2.10 2.19 2.28 2.37 2.46 2.56 2.65 2.74 2.83 2.92 3.01 3.10 3.19 3.29 3.38 3.47 3.56 3.65 3.74 3.83 3.92 4.02 4.11 4.20 4.29 4.38 4.47 4.56 4.66 4.75 4.84 4.93 5.02 5.11 5.20 5.29 5.39 5.48 5.57 5.66 5.75 5.84 5.93 6.02 6.12 6.21 6.30 6.39
RED POWER II
vmax ≤ 55 m/s Where v > 42 m/s, please consult our Applications Engineering Department
1.57 2.13 3.25 6.38 0.11 0.22 0.45 0.67 0.78 0.90 1.01 1.12 1.23 1.34 1.45 1.57 1.68 1.79 1.90 2.01 2.13 2.24 2.35 2.46 2.57 2.69 2.80 2.91 3.02 3.13 3.25 3.36 3.47 3.58 3.69 3.80 3.92 4.03 4.14 4.25 4.36 4.48 4.59 4.70 4.81 4.92 5.04 5.15 5.26 5.37 5.48 5.60 5.71 5.82 5.93 6.04 6.16 6.27 6.38 6.49 6.60 6.71 6.83 6.94 7.05 7.16 7.27 7.39 7.50 7.61 7.72 7.83
v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
91
Technical Manual V-Belts
Power Ratings optibelt RED POWER II Section 8V/25N, 8V/25J Nominal Power Rating PN (kW) for
= 180° and 8V 2500/6350 mm La
Statically balanced
v (m/s)
Pulleys
Table 36 nk
Datum diameter of small pulley dak (mm)
(min-1)
335
355
375
425
450
475
500
530
560
600
630
700 950 1450 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250
28.21 35.60 46.12 2.80 5.23 7.50 9.68 11.78 13.81 15.79 17.71 19.58 21.40 23.18 24.90 26.58 28.21 29.79 31.32 32.80 34.23 35.60 36.92 38.19 39.40 40.55 41.64 42.66 43.63 44.53 45.36 46.12 46.82 47.44 47.98 48.46 48.85 49.16 49.40 49.54 49.61 49.59 49.47 49.27 48.98 48.59 48.10 47.51
31.31 39.51 50.96 3.08 5.76 8.28 10.69 13.03 15.29 17.49 19.63 21.71 23.74 25.71 27.63 29.50 31.31 33.07 34.77 36.41 37.99 39.51 40.97 42.36 43.69 44.95 46.14 47.25 48.30 49.26 50.15 50.96 51.68 52.32 52.88 53.34 53.72 54.00 54.18 54.27 54.25 54.13 53.91 53.58 53.14 52.59 51.93 51.15
34.38 43.34 55.57 3.36 6.29 9.05 11.70 14.27 16.76 19.17 21.53 23.82 26.05 28.23 30.34 32.39 34.38 36.30 38.16 39.96 41.69 43.34 44.93 46.44 47.87 49.23 50.50 51.69 52.80 53.82 54.74 55.57 56.31 56.95 57.48 57.91 58.24 58.46 58.56 58.55 58.42 58.18 57.81 57.31 56.69 55.93 55.04 54.02
41.89 52.60 66.08 4.04 7.60 10.98 14.22 17.35 20.40 23.36 26.24 29.04 31.77 34.42 36.99 39.48 41.89 44.21 46.45 48.59 50.64 52.60 54.46 56.21 57.85 59.39 60.81 62.12 63.30 64.36 65.29 66.08 66.74 67.26 67.64 67.87 67.95 67.86 67.62 67.22 66.65 65.90 64.98
45.56 57.04 70.75 4.39 8.26 11.93 15.46 18.88 22.20 25.43 28.57 31.62 34.59 37.47 40.26 42.96 45.56 48.06 50.47 52.77 54.96 57.04 59.01 60.85 62.57 64.16 65.62 66.94 68.12 69.15 70.03 70.75 71.32 71.72 71.95 72.00 71.88 71.57 71.07 70.38 69.49 68.40 67.10
49.17 61.36 75.01 4.73 8.91 12.88 16.70 20.40 24.00 27.49 30.88 34.18 37.38 40.48 43.48 46.38 49.17 51.85 54.41 56.85 59.17 61.36 63.41 65.32 67.10 68.72 70.18 71.49 72.63 73.60 74.39 75.01 75.43 75.66 75.70 75.53 75.15 74.56
52.72 65.54 78.82 5.07 9.56 13.83 17.94 21.92 25.78 29.53 33.18 36.72 40.14 43.46 46.67 49.76 52.72 55.56 58.26 60.83 63.26 65.54 67.66 69.62 71.42 73.04 74.49 75.75 76.82 77.70 78.36 78.82 79.07 79.09 78.87 78.43 77.74 76.80
56.90 70.37 82.80 5.47 10.34 14.96 19.42 23.73 27.91 31.97 35.91 39.73 43.43 46.99 50.43 53.74 56.90 59.91 62.77 65.47 68.01 70.37 72.55 74.54 76.33 77.93 79.31 80.47 81.41 82.12 82.58 82.80 82.76
60.98 74.99 86.09 5.88 11.11 16.09 20.89 25.53 30.02 34.39 38.62 42.71 46.66 50.48 54.14 57.64 60.98 64.16 67.15 69.96 72.58 74.99 77.19 79.18 80.93 82.45 83.72 84.74 85.50 85.98 86.18 86.09 85.70
66.28 80.81 89.34 6.42 12.14 17.59 22.83 27.91 32.82 37.58 42.19 46.64 50.92 55.04 58.97 62.73 66.28 69.64 72.78 75.69 78.37 80.81 82.99 84.91 86.55 87.90 88.95 89.70 90.12 90.20
70.14 84.91 90.88 6.82 12.91 18.71 24.29 29.68 34.90 39.96 44.84 49.54 54.06 58.39 62.52 66.44 70.14 73.61 76.83 79.79 82.49 84.91 87.04 88.86 90.36 91.53 92.36 92.83 92.93 92.64
710
800
79.91 89.95 94.65 103.34 7.88 14.95 21.67 28.13 34.37 40.39 46.19 51.77 57.12 62.23 67.07 71.65 75.93 79.91 83.57 86.89 89.86 92.45 94.65 96.43 97.79 98.70 99.14 99.10 98.55
9.07 17.22 24.96 32.40 39.56 46.44 53.04 59.35 65.35 71.02 76.34 81.28 85.83 89.95 93.62 96.83 99.53 101.71 103.34 104.39 104.83 104.64
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.28 0.38 0.59 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.46 0.49 0.51 0.53 0.55 0.57 0.59 0.61 0.63 0.65 0.67 0.69 0.71 0.73 0.75 0.77 0.79 0.81 0.83 0.85 0.87 0.89 0.91
1.83 2.48 3.79 0.13 0.26 0.39 0.52 0.65 0.78 0.91 1.05 1.18 1.31 1.44 1.57 1.70 1.83 1.96 2.09 2.22 2.35 2.48 2.61 2.74 2.88 3.01 3.14 3.27 3.40 3.53 3.66 3.79 3.92 4.05 4.18 4.31 4.44 4.57 4.70 4.84 4.97 5.10 5.23 5.36 5.49 5.62 5.75 5.88
2.60 3.18 3.52 4.32 5.38 6.60 0.19 0.23 0.37 0.45 0.56 0.68 0.74 0.91 0.93 1.14 1.11 1.36 1.30 1.59 1.48 1.82 1.67 2.05 1.86 2.27 2.04 2.50 2.23 2.73 2.41 2.96 2.60 3.18 2.78 3.41 2.97 3.64 3.15 3.87 3.34 4.09 3.52 4.32 3.71 4.55 3.90 4.78 4.08 5.00 4.27 5.23 4.45 5.46 4.64 5.69 4.82 5.91 5.01 6.14 5.19 6.37 5.38 6.60 5.57 6.82 5.75 7.05 5.94 7.28 6.12 7.51 6.31 7.73 6.49 7.96 6.68 8.19 6.86 8.42 7.05 8.64 7.23 8.87 7.42 9.10 7.61 9.33 7.79 9.55 7.98 9.78 8.16 10.01 8.35 10.23
RED POWER II
vmax â&#x2030;¤ 55 m/s Where v > 42 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see USA Standard RMA/MPTA)
92
Pulleys
Technical Manual V-Belts
Power Ratings optibelt Super X-POWER M=S Section XPZ, 3VX Nominal Power Rating PN (kW) for
= 180° and Ld = 1600 mm
v (m/s)
Pulleys
Table 37 nk
Datum diameter of small pulley ddk (mm)
(min-1)
56
60
63
71
80
85
90
95
100
112
125
140
160
180
200
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 7600 7800 8000 8200 8400
0.72 0.92 1.27 2.07 0.14 0.26 0.36 0.46 0.55 0.64 0.72 0.80 0.88 0.96 1.03 1.10 1.17 1.24 1.30 1.37 1.43 1.49 1.55 1.61 1.67 1.72 1.78 1.83 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.23 2.28 2.32 2.37 2.41 2.45 2.50 2.54 2.58 2.61 2.65 2.69 2.73 2.76 2.80 2.83 2.86 2.90 2.93 2.96 2.99 3.02 3.05 3.07 3.10 3.15 3.20 3.24 3.29 3.33 3.36 3.39 3.42 3.45 3.47 3.49 3.50 3.51 3.52
0.84 1.07 1.49 2.46 0.16 0.30 0.42 0.53 0.64 0.74 0.84 0.93 1.02 1.11 1.20 1.28 1.37 1.45 1.53 1.61 1.68 1.76 1.83 1.90 1.97 2.04 2.11 2.18 2.24 2.31 2.37 2.43 2.49 2.55 2.61 2.67 2.73 2.79 2.84 2.90 2.95 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.34 3.39 3.43 3.47 3.52 3.56 3.60 3.64 3.68 3.71 3.75 3.79 3.86 3.92 3.98 4.04 4.09 4.14 4.19 4.23 4.27 4.31 4.34 4.36 4.39 4.40
0.92 1.18 1.65 2.76 0.18 0.32 0.46 0.58 0.70 0.81 0.92 1.03 1.13 1.23 1.33 1.42 1.52 1.61 1.70 1.78 1.87 1.95 2.04 2.12 2.20 2.28 2.36 2.43 2.51 2.58 2.65 2.72 2.79 2.86 2.93 3.00 3.06 3.13 3.19 3.25 3.32 3.38 3.44 3.49 3.55 3.61 3.66 3.72 3.77 3.82 3.87 3.93 3.97 4.02 4.07 4.12 4.16 4.21 4.25 4.29 4.37 4.45 4.52 4.59 4.66 4.72 4.77 4.83 4.87 4.92 4.96 4.99 5.02 5.04
1.14 1.48 2.08 3.54 0.22 0.39 0.56 0.71 0.86 1.01 1.14 1.28 1.41 1.54 1.66 1.79 1.91 2.03 2.14 2.25 2.37 2.48 2.59 2.69 2.80 2.90 3.00 3.10 3.20 3.30 3.39 3.49 3.58 3.67 3.76 3.85 3.94 4.03 4.11 4.20 4.28 4.36 4.44 4.52 4.60 4.67 4.75 4.82 4.89 4.97 5.03 5.10 5.17 5.24 5.30 5.36 5.43 5.49 5.55 5.60 5.72 5.82 5.92 6.02 6.11 6.20 6.27 6.35 6.41 6.48 6.53 6.58 6.62 6.66
1.39 1.80 2.56 4.39 0.26 0.47 0.67 0.86 1.05 1.22 1.39 1.56 1.72 1.88 2.04 2.19 2.34 2.49 2.63 2.78 2.92 3.06 3.19 3.33 3.46 3.59 3.72 3.84 3.97 4.09 4.21 4.33 4.45 4.57 4.68 4.80 4.91 5.02 5.13 5.23 5.34 5.44 5.54 5.64 5.74 5.84 5.93 6.03 6.12 6.21 6.30 6.38 6.47 6.55 6.63 6.71 6.79 6.87 6.94 7.02 7.16 7.29 7.42 7.54 7.65 7.76 7.85 7.94 8.02 8.10 8.16 8.22 8.26 8.30
1.53 1.98 2.83 4.86 0.28 0.52 0.74 0.95 1.15 1.34 1.53 1.72 1.90 2.07 2.24 2.41 2.58 2.74 2.91 3.06 3.22 3.37 3.53 3.67 3.82 3.97 4.11 4.25 4.39 4.53 4.66 4.80 4.93 5.06 5.18 5.31 5.43 5.56 5.68 5.80 5.91 6.03 6.14 6.25 6.36 6.47 6.57 6.68 6.78 6.88 6.98 7.07 7.17 7.26 7.35 7.44 7.53 7.61 7.69 7.77 7.93 8.07 8.21 8.34 8.46 8.57 8.68 8.77 8.86 8.93 9.00 9.05 9.10 9.13
1.80 2.34 3.35 5.78 0.33 0.61 0.87 1.11 1.35 1.58 1.80 2.02 2.24 2.45 2.65 2.86 3.05 3.25 3.44 3.63 3.82 4.00 4.18 4.36 4.54 4.71 4.88 5.05 5.22 5.38 5.54 5.70 5.86 6.02 6.17 6.32 6.47 6.61 6.76 6.90 7.04 7.17 7.31 7.44 7.57 7.70 7.82 7.94 8.06 8.18 8.30 8.41 8.52 8.63 8.73 8.83 8.93 9.03 9.12 9.22 9.39 9.56 9.71 9.85 9.98 10.10 10.21 10.30 10.39 10.46 10.51 10.56 10.59 10.60
1.94 2.52 3.60 6.24 0.35 0.65 0.93 1.19 1.45 1.70 1.94 2.18 2.41 2.63 2.86 3.07 3.29 3.50 3.71 3.91 4.11 4.31 4.51 4.70 4.89 5.08 5.26 5.45 5.63 5.80 5.98 6.15 6.32 6.49 6.65 6.81 6.97 7.13 7.28 7.44 7.59 7.73 7.88 8.02 8.16 8.29 8.43 8.56 8.68 8.81 8.93 9.05 9.17 9.28 9.39 9.50 9.61 9.71 9.81 9.90 10.09 10.26 10.42 10.56 10.69 10.81 10.91 11.00 11.08 11.14 11.19 11.22 11.23 11.23
2.26 2.94 4.22 7.30 0.41 0.75 1.08 1.39 1.69 1.98 2.26 2.54 2.81 3.08 3.34 3.59 3.84 4.09 4.34 4.58 4.82 5.05 5.28 5.51 5.73 5.95 6.17 6.38 6.59 6.80 7.00 7.20 7.40 7.60 7.79 7.97 8.16 8.34 8.52 8.70 8.87 9.04 9.20 9.36 9.52 9.67 9.83 9.97 10.12 10.26 10.40 10.53 10.66 10.78 10.90 11.02 11.14 11.25 11.35 11.45 11.64 11.82 11.98 12.12 12.24 12.34 12.43 12.49 12.54 12.56 12.57 12.55 12.52 12.46
2.42 3.15 4.52 7.82 0.43 0.80 1.15 1.48 1.81 2.12 2.42 2.72 3.01 3.29 3.57 3.85 4.12 4.39 4.65 4.91 5.16 5.41 5.66 5.90 6.14 6.38 6.61 6.84 7.06 7.29 7.50 7.72 7.93 8.14 8.34 8.54 8.74 8.93 9.12 9.31 9.49 9.67 9.84 10.01 10.18 10.34 10.50 10.65 10.80 10.95 11.09 11.23 11.36 11.49 11.62 11.74 11.85 11.96 12.07 12.17 12.36 12.53 12.69 12.82 12.93 13.01 13.08 13.13 13.15 13.15 13.12 13.08 13.00 12.90
2.61 3.39 4.87 8.42 0.46 0.86 1.24 1.60 1.94 2.28 2.61 2.93 3.24 3.55 3.85 4.15 4.44 4.73 5.01 5.29 5.56 5.83 6.10 6.36 6.62 6.87 7.12 7.37 7.61 7.85 8.08 8.31 8.54 8.76 8.98 9.19 9.40 9.60 9.81 10.00 10.20 10.38 10.57 10.75 10.92 11.09 11.26 11.42 11.58 11.73 11.87 12.02 12.15 12.28 12.41 12.53 12.65 12.76 12.87 12.97 13.15 13.31 13.45 13.56 13.65 13.72 13.76 13.77 13.76 13.72 13.65 13.56 13.43 13.28
3.00 3.91 5.61 9.67 0.53 0.99 1.42 1.83 2.23 2.62 3.00 3.37 3.73 4.09 4.43 4.78 5.11 5.45 5.77 6.09 6.41 6.72 7.02 7.32 7.62 7.91 8.19 8.47 8.75 9.02 9.29 9.55 9.80 10.05 10.29 10.53 10.77 11.00 11.22 11.44 11.65 11.85 12.05 12.25 12.44 12.62 12.79 12.96 13.13 13.28 13.43 13.58 13.71 13.84 13.97 14.08 14.19 14.30 14.39 14.48 14.63 14.75 14.84 14.90 14.92 14.91 14.87 14.79 14.67
3.51 4.58 6.58 11.26 0.62 1.16 1.66 2.15 2.62 3.07 3.51 3.95 4.37 4.79 5.20 5.60 6.00 6.38 6.77 7.14 7.51 7.87 8.22 8.57 8.91 9.25 9.58 9.90 10.22 10.52 10.83 11.12 11.41 11.69 11.96 12.23 12.49 12.74 12.98 13.22 13.44 13.66 13.87 14.08 14.27 14.46 14.63 14.80 14.96 15.11 15.25 15.38 15.50 15.61 15.72 15.81 15.89 15.96 16.02 16.07 16.14 16.16 16.13 16.06
4.02 5.25 7.52 12.77 0.71 1.32 1.90 2.46 2.99 3.51 4.02 4.52 5.01 5.48 5.95 6.41 6.86 7.30 7.74 8.16 8.58 8.99 9.39 9.78 10.16 10.54 10.91 11.26 11.61 11.95 12.29 12.61 12.92 13.22 13.52 13.80 14.08 14.34 14.59 14.83 15.07 15.29 15.50 15.69 15.88 16.05 16.22 16.37 16.50 16.63 16.74 16.84 16.92 17.00 17.05 17.10 17.13 17.14 17.14 17.13 17.06
4.53 5.90 8.44 14.17 0.80 1.49 2.14 2.76 3.37 3.95 4.53 5.08 5.63 6.17 6.69 7.21 7.71 8.20 8.69 9.16 9.62 10.07 10.52 10.95 11.37 11.78 12.18 12.57 12.94 13.31 13.66 14.01 14.34 14.65 14.96 15.25 15.53 15.79 16.04 16.28 16.50 16.71 16.90 17.08 17.24 17.39 17.52 17.63 17.73 17.81 17.87 17.92 17.94 17.95 17.94 17.91
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.01 0.01 0.02 0.04 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10
0.06 0.08 0.12 0.23 0.01 0.02 0.02 0.03 0.04 0.05 0.06 0.06 0.07 0.08 0.09 0.10 0.10 0.11 0.12 0.13 0.14 0.14 0.15 0.16 0.17 0.18 0.18 0.19 0.20 0.21 0.22 0.22 0.23 0.24 0.25 0.26 0.26 0.27 0.28 0.29 0.30 0.30 0.31 0.32 0.33 0.34 0.34 0.35 0.36 0.37 0.38 0.38 0.39 0.40 0.41 0.42 0.42 0.43 0.44 0.45 0.46 0.48 0.50 0.51 0.53 0.54 0.56 0.58 0.59 0.61 0.62 0.64 0.66 0.67
0.08 0.11 0.16 0.32 0.01 0.02 0.03 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.39 0.40 0.41 0.42 0.43 0.44 0.45 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.56 0.57 0.58 0.59 0.60 0.61 0.62 0.64 0.66 0.68 0.70 0.73 0.75 0.77 0.79 0.82 0.84 0.86 0.89 0.91 0.93 0.95
Statically balanced
SUPER X-POWER M=S
vmax â&#x2030;¤ 55 m/s
Where v > 42 m/s, please consult our Applications Engineering Department
0.10 0.13 0.20 0.40 0.01 0.03 0.04 0.06 0.07 0.08 0.10 0.11 0.13 0.14 0.15 0.17 0.18 0.19 0.21 0.22 0.24 0.25 0.26 0.28 0.29 0.31 0.32 0.33 0.35 0.36 0.38 0.39 0.40 0.42 0.43 0.45 0.46 0.47 0.49 0.50 0.52 0.53 0.54 0.56 0.57 0.58 0.60 0.61 0.63 0.64 0.65 0.67 0.68 0.70 0.71 0.72 0.74 0.75 0.77 0.78 0.81 0.84 0.86 0.89 0.92 0.95 0.97 1.00 1.03 1.06 1.09 1.11 1.14 1.17
v (m/s) Dynamically balanced (for details see DIN 2211) Note: Pulley diameters shown are outside diameters for sections 3VX.
Pulleys
93
Technical Manual V-Belts
Power Ratings optibelt Super X-POWER M=S Section XPA Nominal Power Rating PN (kW) for
= 180° and Ld = 2500 mm
v (m/s)
Pulleys
Table 38 nk
Datum diameter of small pulley ddk (mm)
(min-1)
71
80
85
95
100
112
118
125
140
160
180
200
224
250
280
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000
1.12 1.43 2.01 3.31 0.22 0.39 0.55 0.70 0.85 0.99 1.12 1.25 1.37 1.50 1.61 1.73 1.84 1.95 2.06 2.16 2.27 2.37 2.47 2.56 2.66 2.75 2.84 2.93 3.02 3.10 3.19 3.27 3.35 3.43 3.50 3.58 3.65 3.72 3.79 3.86 3.92 3.99 4.05 4.11 4.17 4.22 4.28 4.33 4.38 4.43 4.48 4.52 4.56 4.60 4.64 4.68 4.72 4.75 4.78 4.81 4.84 4.86 4.88 4.90 4.92 4.94 4.95 4.96 4.97 4.98 4.98 4.99 4.99 4.99
1.55 2.00 2.84 4.85 0.28 0.52 0.75 0.96 1.16 1.36 1.55 1.73 1.91 2.09 2.26 2.43 2.60 2.76 2.92 3.08 3.24 3.39 3.54 3.69 3.83 3.98 4.12 4.26 4.39 4.53 4.66 4.79 4.92 5.04 5.16 5.28 5.40 5.52 5.63 5.74 5.85 5.96 6.06 6.16 6.26 6.36 6.45 6.54 6.63 6.72 6.80 6.88 6.96 7.04 7.11 7.18 7.25 7.32 7.38 7.44 7.50 7.55 7.60 7.65 7.70 7.74 7.78 7.82 7.85 7.88 7.91 7.93 7.95 7.97
1.78 2.31 3.31 5.70 0.32 0.60 0.85 1.10 1.33 1.56 1.78 2.00 2.21 2.42 2.62 2.82 3.02 3.21 3.40 3.59 3.77 3.95 4.13 4.31 4.48 4.65 4.82 4.99 5.15 5.31 5.47 5.62 5.78 5.93 6.07 6.22 6.36 6.50 6.64 6.77 6.90 7.03 7.16 7.28 7.40 7.52 7.63 7.75 7.86 7.96 8.06 8.17 8.26 8.36 8.45 8.54 8.62 8.70 8.78 8.86 8.93 9.00 9.06 9.12 9.18 9.24 9.29 9.34 9.38 9.42 9.46 9.49 9.52 9.55
2.25 2.94 4.22 7.37 0.40 0.74 1.06 1.37 1.67 1.96 2.25 2.53 2.80 3.07 3.33 3.59 3.85 4.10 4.35 4.59 4.83 5.07 5.31 5.54 5.77 5.99 6.21 6.43 6.64 6.86 7.07 7.27 7.47 7.67 7.87 8.06 8.25 8.43 8.62 8.79 8.97 9.14 9.31 9.47 9.63 9.79 9.94 10.09 10.24 10.38 10.52 10.65 10.78 10.91 11.03 11.15 11.26 11.37 11.48 11.58 11.67 11.77 11.85 11.93 12.01 12.09 12.15 12.22 12.28 12.33 12.38 12.42 12.46 12.49
2.48 3.24 4.68 8.20 0.43 0.81 1.17 1.51 1.84 2.16 2.48 2.79 3.09 3.39 3.69 3.98 4.26 4.54 4.82 5.09 5.36 5.63 5.89 6.15 6.40 6.65 6.90 7.14 7.38 7.62 7.85 8.08 8.31 8.53 8.75 8.97 9.18 9.38 9.59 9.79 9.98 10.17 10.36 10.55 10.73 10.90 11.07 11.24 11.40 11.56 11.71 11.86 12.01 12.14 12.28 12.41 12.54 12.66 12.77 12.88 12.99 13.09 13.18 13.27 13.36 13.43 13.51 13.58 13.64 13.69 13.74 13.79 13.83 13.86
3.04 3.98 5.77 10.15 0.52 0.98 1.42 1.84 2.25 2.65 3.04 3.42 3.80 4.17 4.53 4.89 5.24 5.59 5.94 6.28 6.61 6.94 7.27 7.59 7.91 8.22 8.53 8.84 9.14 9.43 9.72 10.01 10.29 10.56 10.84 11.10 11.36 11.62 11.87 12.12 12.36 12.60 12.83 13.05 13.27 13.48 13.69 13.90 14.09 14.28 14.47 14.65 14.82 14.99 15.14 15.30 15.44 15.58 15.72 15.84 15.96 16.08 16.18 16.28 16.37 16.45 16.53 16.60 16.66 16.71 16.75 16.79 16.82 16.84
3.31 4.35 6.31 11.11 0.57 1.07 1.54 2.00 2.45 2.88 3.31 3.73 4.14 4.55 4.95 5.34 5.73 6.12 6.49 6.87 7.23 7.60 7.96 8.31 8.66 9.00 9.34 9.67 10.00 10.32 10.64 10.95 11.26 11.56 11.86 12.15 12.43 12.71 12.99 13.26 13.52 13.77 14.02 14.27 14.50 14.73 14.96 15.18 15.39 15.59 15.79 15.98 16.16 16.34 16.51 16.67 16.82 16.97 17.10 17.23 17.35 17.47 17.57 17.67 17.76 17.84 17.91 17.97 18.02 18.07 18.10 18.13 18.15 18.15
3.63 4.77 6.93 12.21 0.62 1.17 1.69 2.19 2.68 3.16 3.63 4.09 4.55 5.00 5.44 5.87 6.30 6.72 7.14 7.55 7.95 8.35 8.75 9.14 9.52 9.90 10.27 10.64 11.00 11.35 11.70 12.04 12.38 12.71 13.03 13.35 13.66 13.97 14.26 14.56 14.84 15.12 15.39 15.65 15.91 16.15 16.39 16.63 16.85 17.07 17.28 17.48 17.67 17.85 18.03 18.20 18.35 18.50 18.64 18.77 18.89 19.00 19.10 19.19 19.27 19.35 19.41 19.46 19.50 19.53 19.54 19.55 19.55 19.53
4.32 5.68 8.26 14.52 0.73 1.38 2.00 2.60 3.18 3.75 4.32 4.87 5.41 5.94 6.47 6.99 7.50 8.01 8.50 9.00 9.48 9.96 10.43 10.89 11.34 11.79 12.23 12.67 13.09 13.51 13.92 14.33 14.72 15.11 15.49 15.86 16.22 16.57 16.91 17.25 17.57 17.89 18.19 18.49 18.78 19.05 19.32 19.57 19.82 20.05 20.27 20.49 20.69 20.87 21.05 21.21 21.37 21.51 21.63 21.75 21.85 21.94 22.01 22.07 22.12 22.15 22.17 22.17 22.16 22.14 22.10 22.04 21.97 21.89
5.22 6.87 10.00 17.49 0.87 1.66 2.41 3.13 3.84 4.54 5.22 5.89 6.55 7.20 7.83 8.46 9.09 9.70 10.30 10.89 11.48 12.05 12.62 13.17 13.72 14.26 14.78 15.30 15.81 16.30 16.79 17.26 17.72 18.17 18.61 19.04 19.45 19.85 20.24 20.62 20.98 21.33 21.67 21.99 22.30 22.59 22.87 23.13 23.38 23.61 23.82 24.02 24.20 24.36 24.51 24.64 24.75 24.85 24.92 24.98 25.02 25.03 25.03 25.01 24.97 24.90 24.82 24.72 24.59
6.11 8.05 11.71 20.31 1.02 1.94 2.81 3.67 4.50 5.31 6.11 6.90 7.67 8.43 9.18 9.92 10.64 11.36 12.06 12.75 13.43 14.10 14.75 15.40 16.03 16.64 17.25 17.84 18.41 18.97 19.52 20.05 20.57 21.07 21.55 22.02 22.47 22.91 23.32 23.72 24.10 24.46 24.81 25.13 25.43 25.71 25.97 26.21 26.43 26.63 26.80 26.95 27.08 27.18 27.26 27.31 27.34 27.35 27.32 27.27 27.20 27.10
7.00 9.22 13.39 22.98 1.16 2.21 3.22 4.19 5.15 6.08 7.00 7.90 8.78 9.65 10.51 11.35 12.18 12.99 13.79 14.58 15.34 16.10 16.84 17.56 18.26 18.95 19.62 20.28 20.91 21.53 22.12 22.70 23.25 23.79 24.30 24.80 25.26 25.71 26.13 26.53 26.90 27.25 27.58 27.87 28.14 28.38 28.59 28.78 28.93 29.06 29.15 29.22 29.25 29.25 29.21 29.15
8.05 10.60 15.37 25.96 1.33 2.54 3.70 4.82 5.92 6.99 8.05 9.08 10.10 11.10 12.08 13.04 13.99 14.92 15.82 16.71 17.58 18.43 19.26 20.06 20.85 21.61 22.35 23.06 23.75 24.41 25.05 25.66 26.24 26.80 27.32 27.82 28.28 28.71 29.11 29.47 29.81 30.10 30.36 30.59 30.77 30.92 31.03 31.10 31.13 31.12
9.18 12.08 17.46 28.88 1.52 2.89 4.21 5.50 6.75 7.97 9.18 10.35 11.51 12.64 13.75 14.84 15.91 16.95 17.97 18.96 19.93 20.87 21.78 22.66 23.52 24.34 25.13 25.89 26.62 27.31 27.97 28.59 29.17 29.71 30.21 30.68 31.10 31.47 31.80 32.09 32.33 32.52 32.66 32.75 32.79 32.78
10.46 13.76 19.81 31.84 1.73 3.30 4.81 6.27 7.70 9.09 10.46 11.80 13.11 14.39 15.65 16.87 18.07 19.23 20.37 21.47 22.53 23.56 24.55 25.50 26.42 27.29 28.12 28.90 29.64 30.33 30.97 31.56 32.10 32.59 33.02 33.39 33.71 33.96 34.16 34.29 34.35
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.02 0.03 0.04 0.08 0.00 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18 0.18 0.19 0.19 0.19 0.20 0.20 0.20 0.21
0.13 0.18 0.27 0.54 0.02 0.04 0.06 0.08 0.09 0.11 0.13 0.15 0.17 0.19 0.21 0.23 0.25 0.27 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.45 0.47 0.49 0.51 0.53 0.55 0.57 0.59 0.61 0.63 0.64 0.66 0.68 0.70 0.72 0.74 0.76 0.78 0.80 0.81 0.83 0.85 0.87 0.89 0.91 0.93 0.95 0.97 0.98 1.00 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.17 1.19 1.21 1.23 1.25 1.27 1.29 1.31 1.33
0.19 0.26 0.39 0.77 0.03 0.05 0.08 0.11 0.13 0.16 0.19 0.22 0.24 0.27 0.30 0.32 0.35 0.38 0.40 0.43 0.46 0.48 0.51 0.54 0.56 0.59 0.62 0.65 0.67 0.70 0.73 0.75 0.78 0.81 0.83 0.86 0.89 0.91 0.94 0.97 0.99 1.02 1.05 1.08 1.10 1.13 1.16 1.18 1.21 1.24 1.26 1.29 1.32 1.34 1.37 1.40 1.42 1.45 1.48 1.51 1.53 1.56 1.59 1.61 1.64 1.67 1.69 1.72 1.75 1.77 1.80 1.83 1.86 1.88
Statically balanced
SUPER X-POWER M=S
vmax ≤ 55 m/s Where v > 42 m/s, please consult our Applications Engineering Department
v (m/s) Dynamically balanced (for details see DIN 2211)
94
Pulleys
0.23 0.31 0.48 0.94 0.03 0.07 0.10 0.13 0.16 0.20 0.23 0.26 0.30 0.33 0.36 0.40 0.43 0.46 0.49 0.53 0.56 0.59 0.63 0.66 0.69 0.73 0.76 0.79 0.82 0.86 0.89 0.92 0.96 0.99 1.02 1.05 1.09 1.12 1.15 1.19 1.22 1.25 1.29 1.32 1.35 1.38 1.42 1.45 1.48 1.52 1.55 1.58 1.62 1.65 1.68 1.71 1.75 1.78 1.81 1.85 1.88 1.91 1.94 1.98 2.01 2.04 2.08 2.11 2.14 2.18 2.21 2.24 2.27 2.31
Technical Manual V-Belts
Power Ratings optibelt Super X-POWER M=S Section XPB, 5VX Nominal Power Rating PN (kW) for
= 180° and Ld = 3550 mm
Statically balanced
v (m/s)
Pulleys
Table 39 nk
Datum diameter of small pulley ddk (mm)
(min-1)
112
118
125
140
150
160
180
200
224
250
280
315
400
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000
3.32 4.38 6.41 11.36 0.55 1.04 1.52 1.98 2.43 2.88 3.32 3.75 4.17 4.59 5.01 5.42 5.82 6.22 6.61 7.00 7.38 7.76 8.13 8.49 8.85 9.21 9.56 9.90 10.23 10.56 10.89 11.21 11.52 11.82 12.12 12.41 12.69 12.96 13.23 13.49 13.74 13.99 14.22 14.45 14.67 14.88 15.08 15.27 15.45 15.62 15.79 15.94 16.08 16.22 16.34 16.45 16.56 16.65 16.73 16.80 16.85 16.90 16.93 16.96
3.76 4.97 7.29 12.96 0.61 1.17 1.71 2.24 2.75 3.26 3.76 4.25 4.73 5.21 5.69 6.15 6.61 7.07 7.52 7.96 8.40 8.83 9.25 9.67 10.08 10.49 10.89 11.28 11.67 12.04 12.42 12.78 13.13 13.48 13.82 14.15 14.48 14.79 15.10 15.40 15.68 15.96 16.23 16.49 16.74 16.98 17.21 17.43 17.64 17.83 18.02 18.19 18.36 18.51 18.65 18.77 18.89 18.99 19.08 19.15 19.22 19.27 19.30 19.32
4.27 5.66 8.31 14.80 0.69 1.33 1.94 2.54 3.12 3.70 4.27 4.83 5.39 5.93 6.47 7.01 7.54 8.06 8.57 9.08 9.58 10.07 10.56 11.04 11.51 11.98 12.43 12.88 13.32 13.76 14.18 14.59 15.00 15.40 15.79 16.17 16.53 16.89 17.24 17.58 17.91 18.22 18.53 18.82 19.10 19.37 19.63 19.88 20.11 20.33 20.54 20.73 20.91 21.08 21.23 21.37 21.49 21.60 21.69 21.77 21.83 21.88 21.91 21.92
5.36 7.12 10.49 18.67 0.86 1.65 2.42 3.17 3.92 4.64 5.36 6.07 6.78 7.47 8.15 8.83 9.50 10.16 10.81 11.45 12.09 12.71 13.33 13.94 14.53 15.12 15.69 16.26 16.82 17.36 17.89 18.41 18.92 19.42 19.90 20.37 20.83 21.27 21.70 22.11 22.51 22.90 23.26 23.62 23.96 24.28 24.58 24.87 25.14 25.39 25.62 25.84 26.03 26.21 26.37 26.50 26.62 26.72 26.79 26.84 26.88 26.89 26.87 26.84
6.09 8.09 11.92 21.18 0.97 1.87 2.74 3.60 4.44 5.27 6.09 6.90 7.70 8.49 9.27 10.04 10.80 11.55 12.29 13.02 13.74 14.45 15.15 15.84 16.52 17.18 17.83 18.47 19.10 19.71 20.31 20.90 21.47 22.02 22.56 23.08 23.59 24.08 24.56 25.01 25.45 25.87 26.27 26.65 27.01 27.36 27.68 27.98 28.26 28.52 28.75 28.96 29.15 29.32 29.46 29.58 29.67 29.74 29.78 29.80 29.79 29.75 29.68 29.59
6.81 9.06 13.35 23.64 1.08 2.09 3.06 4.02 4.97 5.90 6.81 7.72 8.62 9.50 10.38 11.24 12.09 12.93 13.76 14.58 15.39 16.18 16.96 17.73 18.48 19.22 19.94 20.65 21.35 22.02 22.68 23.33 23.96 24.56 25.15 25.72 26.28 26.81 27.32 27.81 28.28 28.72 29.15 29.55 29.92 30.28 30.60 30.91 31.18 31.44 31.66 31.86 32.02 32.16 32.28 32.36 32.41 32.43 32.42 32.38 32.30 32.20 32.06 31.88
8.26 10.98 16.18 28.40 1.30 2.52 3.70 4.87 6.01 7.14 8.26 9.36 10.44 11.52 12.58 13.62 14.66 15.67 16.67 17.66 18.63 19.58 20.52 21.43 22.33 23.21 24.07 24.90 25.72 26.51 27.28 28.03 28.75 29.45 30.12 30.77 31.39 31.98 32.54 33.07 33.57 34.04 34.48 34.89 35.26 35.60 35.90 36.17 36.40 36.60 36.75 36.87 36.95 36.99 36.99 36.94 36.86 36.73 36.55 36.33 36.07 35.76
9.69 12.89 18.96 32.90 1.52 2.95 4.34 5.71 7.05 8.38 9.69 10.98 12.26 13.52 14.76 15.98 17.19 18.38 19.54 20.69 21.81 22.91 23.99 25.05 26.08 27.08 28.06 29.00 29.92 30.81 31.67 32.50 33.29 34.05 34.78 35.47 36.12 36.73 37.31 37.85 38.34 38.79 39.20 39.57 39.88 40.16 40.38 40.56 40.69 40.77 40.79 40.76 40.68 40.55 40.36 40.11
11.40 15.16 22.25 37.94 1.78 3.46 5.10 6.71 8.29 9.86 11.40 12.92 14.42 15.89 17.35 18.78 20.19 21.57 22.92 24.25 25.54 26.81 28.05 29.25 30.42 31.55 32.65 33.70 34.72 35.70 36.63 37.52 38.36 39.16 39.91 40.60 41.25 41.85 42.39 42.87 43.30 43.66 43.97 44.22 44.40 44.52 44.57 44.56 44.47 44.32
13.24 17.59 25.73 42.92 2.07 4.02 5.92 7.79 9.63 11.45 13.24 15.00 16.73 18.44 20.12 21.76 23.38 24.96 26.50 28.01 29.47 30.90 32.28 33.62 34.92 36.16 37.35 38.49 39.58 40.61 41.58 42.49 43.34 44.12 44.84 45.49 46.06 46.57 47 47.35 47.62 47.81 47.92 47.95 47.88 47.73
15.34 20.36 29.65 47.97 2.39 4.65 6.86 9.03 11.17 13.27 15.34 17.37 19.37 21.34 23.26 25.14 26.98 28.77 30.52 32.21 33.85 35.43 36.96 38.42 39.82 41.15 42.41 43.60 44.71 45.74 46.70 47.57 48.35 49.04 49.64 50.14 50.54 50.85 51.04 51.13 51.11
17.77 23.54 34.07 52.80 2.77 5.40 7.96 10.48 12.95 15.38 17.77 20.11 22.41 24.66 26.85 28.99 31.07 33.09 35.03 36.91 38.72 40.44 42.08 43.64 45.10 46.47 47.75 48.92 49.98 50.93 51.77 52.49 53.09 53.56 53.89 54.09 54.16
23.56 31.02 44.02 3.69 7.19 10.60 13.94 17.22 20.42 23.56 26.61 29.57 32.45 35.22 37.88 40.43 42.86 45.15 47.31 49.32 51.17 52.85 54.37 55.70 56.84 57.79 58.53 59.05 59.35
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.04 0.06 0.09 0.18 0.01 0.01 0.02 0.03 0.03 0.04 0.04 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.09 0.10 0.11 0.11 0.12 0.13 0.13 0.14 0.15 0.15 0.16 0.16 0.17 0.18 0.18 0.19 0.20 0.20 0.21 0.22 0.22 0.23 0.23 0.24 0.25 0.25 0.26 0.27 0.27 0.28 0.28 0.29 0.30 0.30 0.31 0.32 0.32 0.33 0.34 0.34 0.35 0.35 0.36 0.37 0.37 0.38
0.29 0.39 0.59 1.17 0.04 0.08 0.12 0.16 0.20 0.25 0.29 0.33 0.37 0.41 0.45 0.49 0.53 0.57 0.61 0.65 0.70 0.74 0.78 0.82 0.86 0.90 0.94 0.98 1.02 1.06 1.10 1.15 1.19 1.23 1.27 1.31 1.35 1.39 1.43 1.47 1.51 1.55 1.60 1.64 1.68 1.72 1.76 1.80 1.84 1.88 1.92 1.96 2.00 2.05 2.09 2.13 2.17 2.21 2.25 2.29 2.33 2.37 2.41 2.45
0.41 0.55 0.84 1.65 0.06 0.12 0.17 0.23 0.29 0.35 0.41 0.46 0.52 0.58 0.64 0.70 0.75 0.81 0.87 0.93 0.99 1.05 1.10 1.16 1.22 1.28 1.34 1.39 1.45 1.51 1.57 1.63 1.68 1.74 1.80 1.86 1.92 1.97 2.03 2.09 2.15 2.21 2.26 2.32 2.38 2.44 2.50 2.56 2.61 2.67 2.73 2.79 2.85 2.90 2.96 3.02 3.08 3.14 3.19 3.25 3.31 3.37 3.43 3.48
SUPER X-POWER M=S
0.50 0.68 1.03 2.03 0.07 0.14 0.21 0.28 0.36 0.43 0.50 0.57 0.64 0.71 0.78 0.85 0.93 1.00 1.07 1.14 1.21 1.28 1.35 1.42 1.50 1.57 1.64 1.71 1.78 1.85 1.92 1.99 2.06 2.14 2.21 2.28 2.35 2.42 2.49 2.56 2.63 2.71 2.78 2.85 2.92 2.99 3.06 3.13 3.20 3.28 3.35 3.42 3.49 3.56 3.63 3.70 3.77 3.84 3.92 3.99 4.06 4.13 4.20 4.27
vmax â&#x2030;¤ 55 m/s Where v > 42 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211) Note: Pulley diameters shown are outside diameters for sections 5VX.
Pulleys
95
Technical Manual V-Belts
Power Ratings optibelt Super X-POWER M=S Section XPC Nominal Power Rating PN (kW) for
= 180° and Ld = 3550 mm
Statically balanced
v (m/s)
Pulleys
Table 40 nk
Datum diameter of small pulley ddk (mm)
(min-1)
180
200
224
250
280
315
400
450
500
560
630
710
700 950 1450 2850 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 3050 3100 3150 3200 3250 3300 3350 3400 3450 3500
10.79 14.40 21.27 37.09 0.85 1.66 2.46 3.24 4.02 4.79 5.56 6.32 7.08 7.83 8.58 9.32 10.06 10.79 11.52 12.25 12.97 13.69 14.40 15.11 15.81 16.51 17.21 17.90 18.58 19.26 19.94 20.61 21.27 21.93 22.58 23.23 23.87 24.50 25.13 25.75 26.37 26.98 27.58 28.17 28.76 29.34 29.91 30.48 31.04 31.59 32.13 32.67 33.19 33.71 34.22 34.72 35.21 35.70 36.17 36.63 37.09 37.54 37.97 38.40 38.81 39.22 39.62 40.00 40.38 40.74 41.09 41.43 41.77 42.08
12.84 17.14 25.27 43.48 1.01 1.97 2.92 3.85 4.78 5.70 6.61 7.52 8.42 9.31 10.20 11.09 11.97 12.84 13.71 14.58 15.44 16.29 17.14 17.98 18.81 19.64 20.47 21.28 22.09 22.90 23.70 24.49 25.27 26.04 26.81 27.57 28.32 29.07 29.80 30.53 31.25 31.96 32.66 33.35 34.03 34.70 35.36 36.02 36.66 37.29 37.91 38.52 39.12 39.70 40.28 40.84 41.39 41.93 42.46 42.98 43.48 43.97 44.44 44.91 45.35 45.79 46.21 46.62 47.01 47.39 47.75 48.10 48.43 48.75
15.29 20.39 29.98 50.58 1.19 2.34 3.47 4.58 5.68 6.78 7.87 8.95 10.02 11.09 12.15 13.20 14.25 15.29 16.33 17.35 18.37 19.39 20.39 21.39 22.38 23.36 24.33 25.30 26.25 27.20 28.14 29.07 29.98 30.89 31.79 32.68 33.55 34.42 35.27 36.11 36.94 37.76 38.57 39.36 40.14 40.90 41.66 42.39 43.12 43.83 44.52 45.20 45.86 46.51 47.14 47.76 48.36 48.94 49.51 50.05 50.58 51.10 51.59 52.06 52.52 52.96 53.37 53.77 54.15 54.50 54.84 55.15 55.45 55.72
17.93 23.88 34.98 57.52 1.40 2.74 4.06 5.37 6.66 7.95 9.22 10.49 11.75 13.00 14.25 15.48 16.71 17.93 19.14 20.34 21.53 22.71 23.88 25.04 26.19 27.33 28.46 29.58 30.69 31.78 32.86 33.93 34.98 36.02 37.05 38.06 39.06 40.04 41.01 41.96 42.90 43.81 44.71 45.60 46.46 47.31 48.14 48.95 49.73 50.50 51.25 51.98 52.68 53.37 54.03 54.67 55.29 55.88 56.45 57.00 57.52 58.02 58.49 58.93 59.35 59.74 60.11 60.45 60.76 61.04 61.29 61.52 61.71 61.87
20.94 27.86 40.60 64.43 1.63 3.20 4.74 6.27 7.79 9.29 10.79 12.27 13.74 15.20 16.65 18.09 19.52 20.94 22.35 23.75 25.13 26.50 27.86 29.20 30.53 31.85 33.14 34.43 35.70 36.95 38.18 39.40 40.60 41.78 42.93 44.07 45.19 46.29 47.37 48.42 49.45 50.46 51.45 52.41 53.34 54.25 55.13 55.99 56.82 57.62 58.39 59.14 59.85 60.53 61.19 61.81 62.40 62.96 63.48 63.97 64.43 64.85 65.23 65.58 65.90 66.17 66.41 66.61 66.77 66.89 66.97 67.01 67.01 66.97
24.43 32.42 46.91 70.83 1.90 3.74 5.54 7.33 9.10 10.86 12.60 14.33 16.05 17.75 19.44 21.12 22.78 24.43 26.06 27.68 29.28 30.86 32.42 33.97 35.50 37.00 38.49 39.95 41.39 42.81 44.20 45.57 46.91 48.23 49.52 50.78 52.01 53.22 54.39 55.53 56.64 57.72 58.76 59.77 60.74 61.68 62.58 63.44 64.26 65.05 65.79 66.49 67.15 67.77 68.35 68.88 69.36 69.80 70.19 70.54 70.83 71.08 71.27 71.42 71.51 71.55 71.54 71.47 71.35 71.17
32.74 43.16 61.06
37.51 49.20 68.47
42.18 55.01 75.11
47.65 61.66 81.94
53.82 68.91 88.17
60.57 76.46 92.72
2.56 5.03 7.47 9.87 12.26 14.63 16.97 19.29 21.59 23.87 26.13 28.36 30.56 32.74 34.88 37.00 39.09 41.14 43.16 45.14 47.08 48.98 50.85 52.66 54.44 56.17 57.85 59.48 61.06 62.59 64.06 65.48 66.84 68.14 69.38 70.55 71.66 72.71 73.69 74.59 75.43 76.19 76.88 77.49 78.03 78.48 78.85 79.14 79.35 79.46 79.49 79.43
2.94 5.79 8.59 11.37 14.11 16.83 19.52 22.18 24.82 27.42 30.00 32.54 35.04 37.51 39.93 42.32 44.66 46.95 49.20 51.39 53.53 55.62 57.65 59.62 61.52 63.36 65.14 66.84 68.47 70.03 71.51 72.91 74.23 75.46 76.61 77.67 78.64 79.52 80.29 80.97 81.55 82.03 82.40 82.66 82.81 82.84
3.33 6.55 9.72 12.85 15.95 19.02 22.05 25.05 28.01 30.94 33.82 36.65 39.44 42.18 44.87 47.49 50.06 52.57 55.01 57.39 59.69 61.91 64.06 66.12 68.10 70.00 71.80 73.50 75.11 76.61 78.02 79.31 80.49 81.56 82.50 83.33 84.03 84.61 85.05 85.36 85.53 85.55
3.79 7.45 11.06 14.63 18.15 21.63 25.07 28.46 31.80 35.09 38.33 41.50 44.61 47.65 50.62 53.51 56.31 59.03 61.66 64.19 66.63 68.96 71.18 73.28 75.27 77.13 78.87 80.47 81.94 83.26 84.44 85.47 86.34 87.05 87.60 87.97 88.17
4.32 8.51 12.62 16.69 20.70 24.66 28.56 32.39 36.17 39.86 43.49 47.02 50.47 53.82 57.07 60.21 63.24 66.14 68.91 71.55 74.05 76.41 78.60 80.64 82.51 84.20 85.71 87.04 88.17 89.10 89.82 90.33 90.62
4.93 9.71 14.40 19.03 23.59 28.08 32.49 36.82 41.06 45.20 49.23 53.14 56.92 60.57 64.08 67.43 70.61 73.63 76.46 79.11 81.55 83.78 85.79 87.58 89.12 90.42 91.46 92.23 92.72
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.08 0.10 0.16 0.31 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.07 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.23 0.23 0.24 0.24 0.25 0.26 0.26 0.27 0.27 0.28 0.28 0.29 0.29 0.30 0.30 0.31 0.31 0.32 0.33 0.33 0.34 0.34 0.35 0.35 0.36 0.36 0.37 0.37 0.38
0.49 0.67 1.02 2.00 0.04 0.07 0.11 0.14 0.18 0.21 0.25 0.28 0.32 0.35 0.39 0.42 0.46 0.49 0.53 0.56 0.60 0.63 0.67 0.70 0.74 0.77 0.81 0.84 0.88 0.91 0.95 0.98 1.02 1.05 1.09 1.12 1.16 1.19 1.23 1.26 1.30 1.33 1.37 1.40 1.44 1.47 1.51 1.54 1.58 1.61 1.65 1.68 1.72 1.75 1.79 1.82 1.86 1.89 1.93 1.96 2.00 2.04 2.07 2.11 2.14 2.18 2.21 2.25 2.28 2.32 2.35 2.39 2.42 2.46
0.70 0.95 1.44 2.84 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.29 1.34 1.39 1.44 1.49 1.54 1.59 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49
SUPER X-POWER M=S
vmax ≤ 55 m/s Where v > 42 m/s, please consult our Applications Engineering Department
v (m/s) Dynamically balanced (for details see DIN 2211)
96
Pulleys
0.85 1.16 1.77 3.48 0.06 0.12 0.18 0.24 0.31 0.37 0.43 0.49 0.55 0.61 0.67 0.73 0.79 0.85 0.92 0.98 1.04 1.10 1.16 1.22 1.28 1.34 1.40 1.47 1.53 1.59 1.65 1.71 1.77 1.83 1.89 1.95 2.02 2.08 2.14 2.20 2.26 2.32 2.38 2.44 2.50 2.56 2.63 2.69 2.75 2.81 2.87 2.93 2.99 3.05 3.11 3.18 3.24 3.30 3.36 3.42 3.48 3.54 3.60 3.66 3.72 3.79 3.85 3.91 3.97 4.03 4.09 4.15 4.21 4.27
Technical Manual V-Belts
Power Ratings optibelt SUPER TX M=S Section ZX/X10 Nominal Power Rating PN (kW) for
= 180째 and Ld = 822 mm
Statically balanced
v (m/s)
Pulleys
Table 41 nk
Datum diameter of small pulley ddk (mm)
(min-1)
40
45
50
56
63
71
80
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 7600 7800 8000 8200 8400
0.22 0.27 0.36 0.54 0.05 0.09 0.12 0.15 0.17 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.37 0.39 0.40 0.42 0.43 0.44 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.60 0.60 0.61 0.62 0.62 0.63 0.64 0.64 0.65 0.65 0.66 0.66 0.67 0.67 0.68 0.68 0.68 0.69 0.69 0.69 0.69 0.70 0.70 0.70 0.71 0.71 0.71 0.71 0.71 0.71 0.70 0.70 0.70 0.69 0.68 0.68
0.27 0.34 0.45 0.69 0.06 0.10 0.14 0.18 0.21 0.24 0.27 0.30 0.32 0.35 0.37 0.40 0.42 0.44 0.46 0.48 0.50 0.52 0.54 0.56 0.57 0.59 0.61 0.62 0.64 0.65 0.67 0.68 0.70 0.71 0.72 0.74 0.75 0.76 0.77 0.78 0.79 0.80 0.81 0.82 0.83 0.84 0.85 0.86 0.87 0.87 0.88 0.89 0.90 0.90 0.91 0.92 0.92 0.93 0.93 0.94 0.95 0.96 0.96 0.97 0.98 0.98 0.98 0.98 0.99 0.99 0.99 0.98 0.98 0.98
0.32 0.40 0.54 0.84 0.07 0.12 0.16 0.21 0.25 0.28 0.32 0.35 0.38 0.41 0.44 0.47 0.50 0.52 0.55 0.58 0.60 0.62 0.65 0.67 0.69 0.71 0.73 0.75 0.77 0.79 0.81 0.83 0.84 0.86 0.88 0.89 0.91 0.93 0.94 0.95 0.97 0.98 1.00 1.01 1.02 1.03 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.15 1.16 1.17 1.18 1.20 1.21 1.22 1.23 1.24 1.24 1.25 1.25 1.25 1.26 1.26 1.25 1.25
0.37 0.47 0.64 1.01 0.08 0.14 0.19 0.24 0.29 0.33 0.37 0.41 0.45 0.49 0.52 0.56 0.59 0.62 0.65 0.69 0.71 0.74 0.77 0.80 0.83 0.85 0.88 0.90 0.93 0.95 0.97 0.99 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.17 1.19 1.21 1.23 1.24 1.26 1.27 1.29 1.30 1.32 1.33 1.34 1.36 1.37 1.38 1.39 1.40 1.41 1.42 1.43 1.45 1.47 1.49 1.50 1.51 1.52 1.53 1.54 1.55 1.55 1.55 1.56 1.56 1.55
0.44 0.55 0.75 1.20 0.09 0.16 0.22 0.28 0.34 0.39 0.44 0.48 0.53 0.57 0.62 0.66 0.70 0.74 0.77 0.81 0.85 0.88 0.91 0.95 0.98 1.01 1.04 1.07 1.10 1.13 1.16 1.18 1.21 1.24 1.26 1.29 1.31 1.34 1.36 1.38 1.40 1.43 1.45 1.47 1.49 1.51 1.53 1.54 1.56 1.58 1.60 1.61 1.63 1.64 1.66 1.67 1.69 1.70 1.71 1.72 1.75 1.77 1.79 1.81 1.82 1.83 1.84 1.85 1.86 1.86 1.87 1.87 1.87 1.86
0.51 0.64 0.88 1.41 0.10 0.19 0.26 0.33 0.39 0.45 0.51 0.56 0.62 0.67 0.72 0.77 0.81 0.86 0.90 0.95 0.99 1.03 1.07 1.11 1.15 1.19 1.22 1.26 1.29 1.33 1.36 1.39 1.43 1.46 1.49 1.52 1.55 1.57 1.60 1.63 1.66 1.68 1.71 1.73 1.75 1.78 1.80 1.82 1.84 1.86 1.88 1.90 1.92 1.94 1.96 1.97 1.99 2.00 2.02 2.03 2.06 2.08 2.10 2.12 2.14 2.15 2.16 2.17 2.17 2.18 2.18 2.17 2.17 2.16
0.59 0.74 1.02 1.64 0.12 0.21 0.30 0.38 0.45 0.52 0.59 0.65 0.71 0.77 0.83 0.89 0.94 1.00 1.05 1.10 1.15 1.20 1.24 1.29 1.34 1.38 1.42 1.46 1.50 1.54 1.58 1.62 1.66 1.70 1.73 1.77 1.80 1.83 1.86 1.89 1.93 1.95 1.98 2.01 2.04 2.07 2.09 2.12 2.14 2.16 2.18 2.21 2.23 2.25 2.27 2.28 2.30 2.32 2.33 2.35 2.38 2.40 2.42 2.44 2.45 2.46 2.47 2.47 2.47 2.47 2.46 2.45 2.43 2.41
90
100
112
0.67 0.76 0.85 0.85 0.96 1.09 1.18 1.32 1.50 1.88 2.12 2.39 0.14 0.15 0.17 0.24 0.27 0.31 0.34 0.38 0.43 0.43 0.48 0.54 0.51 0.58 0.65 0.60 0.67 0.76 0.67 0.76 0.85 0.75 0.84 0.95 0.82 0.92 1.04 0.89 1.00 1.13 0.95 1.07 1.21 1.02 1.15 1.30 1.08 1.22 1.38 1.14 1.29 1.46 1.20 1.36 1.53 1.26 1.42 1.61 1.32 1.49 1.68 1.38 1.55 1.75 1.43 1.61 1.82 1.48 1.67 1.89 1.53 1.73 1.95 1.59 1.78 2.01 1.63 1.84 2.08 1.68 1.89 2.14 1.73 1.95 2.19 1.78 2.00 2.25 1.82 2.05 2.31 1.86 2.09 2.36 1.91 2.14 2.41 1.95 2.19 2.46 1.99 2.23 2.51 2.03 2.28 2.56 2.07 2.32 2.60 2.10 2.36 2.65 2.14 2.40 2.69 2.17 2.44 2.73 2.21 2.47 2.77 2.24 2.51 2.81 2.27 2.54 2.84 2.30 2.58 2.88 2.33 2.61 2.91 2.36 2.64 2.94 2.39 2.67 2.97 2.42 2.70 3.00 2.44 2.72 3.02 2.47 2.75 3.05 2.49 2.77 3.07 2.52 2.80 3.09 2.54 2.82 3.11 2.56 2.84 3.13 2.58 2.86 3.14 2.60 2.87 3.16 2.61 2.89 3.17 2.63 2.91 3.18 2.65 2.92 3.19 2.66 2.93 3.20 2.69 2.95 3.21 2.71 2.97 3.21 2.72 2.97 3.20 2.74 2.98 3.18 2.74 2.97 3.16 2.75 2.96 3.13 2.74 2.95 3.09 2.74 2.93 3.04 2.73 2.90 2.99 2.71 Where v > 30 m/s, 2.69 2.66 please consult our Applications Engineering Department
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.00 0.01 0.01 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.06 0.06
0.02 0.02 0.04 0.07 0.00 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.19 0.19 0.20 0.20 0.21 0.21
SUPER TX M=S
0.03 0.04 0.05 0.11 0.00 0.01 0.01 0.01 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.20 0.20 0.20 0.21 0.21 0.22 0.23 0.24 0.24 0.25 0.26 0.27 0.27 0.28 0.29 0.30 0.30 0.31
0.04 0.05 0.08 0.16 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.13 0.13 0.14 0.14 0.15 0.15 0.16 0.17 0.17 0.18 0.18 0.19 0.19 0.20 0.21 0.21 0.22 0.22 0.23 0.23 0.24 0.25 0.25 0.26 0.26 0.27 0.27 0.28 0.29 0.29 0.30 0.30 0.31 0.31 0.32 0.33 0.34 0.35 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.45 0.46 0.47 0.48
v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
97
Technical Manual V-Belts
Power Ratings optibelt SUPER TX M=S Section AX/X13 Nominal Power Rating PN (kW) for
= 180째 and Ld = 1730 mm
Statically balanced
v (m/s)
Pulleys
Table 42 nk
Datum diameter of small pulley ddk (mm)
(min-1)
63
71
80
90
95
100
106
112
118
125
132
140
150
160
180
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000
0.67 0.82 1.05 1.39 0.16 0.27 0.37 0.46 0.54 0.61 0.67 0.74 0.79 0.85 0.90 0.94 0.99 1.03 1.07 1.10 1.14 1.17 1.20 1.23 1.25 1.28 1.30 1.32 1.34 1.35 1.37 1.38 1.39 1.40 1.41 1.42 1.43 1.43 1.43 1.44 1.44 1.43 1.43 1.43 1.42 1.42 1.41 1.40 1.39 1.37 1.36 1.34 1.33 1.31 1.29 1.27 1.25 1.22 1.20 1.17 1.14 1.11 1.08 1.05
0.86 1.06 1.39 1.96 0.19 0.34 0.46 0.57 0.68 0.77 0.86 0.94 1.02 1.10 1.17 1.23 1.30 1.36 1.42 1.47 1.52 1.57 1.62 1.66 1.71 1.75 1.78 1.82 1.85 1.89 1.92 1.94 1.97 2.00 2.02 2.04 2.06 2.07 2.09 2.10 2.11 2.12 2.13 2.14 2.14 2.14 2.15 2.14 2.14 2.14 2.13 2.12 2.11 2.10 2.09 2.07 2.05 2.04 2.01 1.99 1.97 1.94 1.91 1.88
1.07 1.33 1.76 2.58 0.23 0.41 0.56 0.70 0.83 0.95 1.07 1.17 1.28 1.37 1.47 1.56 1.64 1.72 1.80 1.87 1.95 2.01 2.08 2.14 2.20 2.26 2.32 2.37 2.42 2.47 2.51 2.55 2.60 2.63 2.67 2.70 2.74 2.76 2.79 2.82 2.84 2.86 2.88 2.89 2.91 2.92 2.93 2.93 2.94 2.94 2.94 2.94 2.93 2.92 2.91 2.90 2.89 2.87 2.85 2.83 2.80 2.78 2.75 2.72
1.29 1.61 2.16 3.23 0.28 0.49 0.67 0.84 1.00 1.15 1.29 1.42 1.55 1.67 1.79 1.90 2.01 2.11 2.21 2.31 2.40 2.49 2.58 2.66 2.74 2.81 2.89 2.96 3.02 3.09 3.15 3.21 3.26 3.31 3.36 3.41 3.45 3.49 3.53 3.57 3.60 3.63 3.65 3.68 3.70 3.72 3.73 3.74 3.75 3.76 3.76 3.76 3.76 3.75 3.74 3.73 3.71 3.69 3.67 3.64 3.61 3.58 3.55 3.51
1.40 1.76 2.36 3.55 0.30 0.52 0.73 0.91 1.08 1.25 1.40 1.55 1.69 1.82 1.95 2.07 2.19 2.31 2.42 2.52 2.63 2.73 2.82 2.91 3.00 3.08 3.16 3.24 3.32 3.39 3.46 3.52 3.58 3.64 3.70 3.75 3.80 3.84 3.88 3.92 3.96 3.99 4.02 4.05 4.07 4.09 4.11 4.12 4.13 4.14 4.14 4.14 4.13 4.13 4.11 4.10 4.08 4.06 4.03 4.00 3.97 3.93 3.89 3.85
1.51 1.90 2.56 3.86 0.32 0.56 0.78 0.98 1.17 1.34 1.51 1.67 1.82 1.97 2.11 2.24 2.37 2.50 2.62 2.74 2.85 2.96 3.06 3.16 3.26 3.35 3.44 3.52 3.60 3.68 3.76 3.83 3.90 3.96 4.02 4.08 4.13 4.18 4.23 4.27 4.31 4.34 4.38 4.40 4.43 4.45 4.47 4.48 4.49 4.49 4.50 4.49 4.49 4.48 4.46 4.45 4.42 4.40 4.37 4.33 4.29 4.25 4.20 4.15
1.64 2.06 2.79 4.23 0.34 0.61 0.84 1.06 1.27 1.46 1.64 1.81 1.98 2.14 2.30 2.44 2.59 2.72 2.86 2.99 3.11 3.23 3.34 3.45 3.56 3.66 3.76 3.85 3.94 4.03 4.11 4.19 4.26 4.33 4.40 4.46 4.52 4.57 4.62 4.67 4.71 4.75 4.78 4.81 4.84 4.86 4.88 4.89 4.90 4.90 4.90 4.89 4.88 4.87 4.85 4.82 4.79 4.76 4.72 4.68 4.63 4.58 4.52 4.45
1.77 2.23 3.02 4.58 0.37 0.65 0.91 1.14 1.36 1.57 1.77 1.96 2.14 2.31 2.48 2.64 2.80 2.95 3.09 3.23 3.37 3.50 3.62 3.74 3.86 3.97 4.07 4.18 4.27 4.37 4.45 4.54 4.62 4.69 4.77 4.83 4.89 4.95 5.00 5.05 5.10 5.14 5.17 5.20 5.22 5.24 5.26 5.27 5.27 5.27 5.27 5.26 5.24 5.22 5.19 5.16 5.12 5.08 5.03
1.90 2.39 3.25 4.92 0.39 0.70 0.97 1.22 1.46 1.68 1.90 2.10 2.30 2.48 2.66 2.84 3.01 3.17 3.32 3.47 3.62 3.76 3.89 4.02 4.15 4.27 4.38 4.49 4.59 4.69 4.79 4.88 4.96 5.04 5.12 5.19 5.25 5.31 5.37 5.42 5.46 5.50 5.53 5.56 5.59 5.60 5.61 5.62 5.62 5.61 5.60 5.59 5.56 5.53 5.50 5.46 5.41 5.35 5.29
2.04 2.58 3.51 5.31 0.42 0.75 1.04 1.32 1.57 1.81 2.04 2.26 2.48 2.68 2.88 3.06 3.25 3.42 3.59 3.75 3.91 4.06 4.21 4.35 4.48 4.61 4.73 4.85 4.96 5.07 5.17 5.26 5.35 5.44 5.52 5.59 5.66 5.72 5.77 5.82 5.87 5.90 5.93 5.96 5.98 5.99 6.00 6.00 5.99 5.97 5.95 5.92 5.89 5.85
2.19 2.76 3.76 5.68 0.45 0.80 1.11 1.41 1.68 1.94 2.19 2.43 2.65 2.87 3.08 3.29 3.48 3.67 3.85 4.03 4.19 4.36 4.51 4.66 4.80 4.94 5.07 5.20 5.32 5.43 5.53 5.63 5.73 5.82 5.90 5.97 6.04 6.10 6.15 6.20 6.24 6.28 6.30 6.32 6.34 6.34 6.34 6.33 6.31 6.29 6.25 6.21 6.16 6.11
2.35 2.97 4.05 6.09 0.48 0.86 1.20 1.51 1.81 2.09 2.35 2.61 2.86 3.09 3.32 3.54 3.75 3.95 4.14 4.33 4.51 4.69 4.85 5.01 5.17 5.31 5.45 5.58 5.71 5.83 5.94 6.04 6.14 6.23 6.31 6.38 6.45 6.51 6.56 6.61 6.64 6.67 6.69 6.70 6.70 6.70 6.68 6.66 6.63
2.56 3.23 4.40 6.57 0.52 0.93 1.30 1.64 1.96 2.27 2.56 2.84 3.10 3.36 3.61 3.84 4.07 4.29 4.50 4.71 4.90 5.09 5.27 5.44 5.60 5.76 5.91 6.05 6.18 6.30 6.42 6.52 6.62 6.71 6.79 6.86 6.93 6.98 7.03 7.06 7.09 7.11 7.11 7.11 7.10 7.07 7.04 7.00 6.94
2.76 3.49 4.74 7.03 0.56 1.00 1.40 1.77 2.11 2.44 2.76 3.06 3.35 3.62 3.89 4.15 4.39 4.63 4.86 5.07 5.28 5.48 5.67 5.86 6.03 6.19 6.35 6.49 6.63 6.75 6.87 6.98 7.07 7.16 7.24 7.30 7.36 7.41 7.44 7.47 7.48 7.48 7.47 7.45
3.15 3.98 5.41 7.84 0.63 1.14 1.59 2.02 2.41 2.79 3.15 3.50 3.82 4.14 4.44 4.73 5.01 5.28 5.53 5.78 6.01 6.23 6.44 6.64 6.83 7.00 7.16 7.31 7.45 7.58 7.69 7.79 7.88 7.95 8.01 8.06 8.09 8.11 8.11
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.02 0.03 0.04 0.09 0.00 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18
0.08 0.11 0.17 0.33 0.01 0.02 0.03 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.13 0.14 0.15 0.16 0.17 0.18 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.44 0.45 0.46 0.47 0.48 0.49 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.59 0.60 0.61 0.62 0.63 0.64 0.65 0.67 0.68 0.69
SUPER TX M=S
0.12 0.16 0.24 0.47 0.02 0.03 0.05 0.07 0.08 0.10 0.12 0.13 0.15 0.17 0.18 0.20 0.22 0.23 0.25 0.26 0.28 0.30 0.31 0.33 0.35 0.36 0.38 0.40 0.41 0.43 0.45 0.46 0.48 0.50 0.51 0.53 0.55 0.56 0.58 0.60 0.61 0.63 0.65 0.66 0.68 0.70 0.71 0.73 0.74 0.76 0.78 0.79 0.81 0.83 0.84 0.86 0.88 0.89 0.91 0.93 0.94 0.96 0.98 0.99
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
98
Pulleys
0.18 0.24 0.37 0.73 0.03 0.05 0.08 0.10 0.13 0.15 0.18 0.21 0.23 0.26 0.28 0.31 0.33 0.36 0.38 0.41 0.44 0.46 0.49 0.51 0.54 0.56 0.59 0.62 0.64 0.67 0.69 0.72 0.74 0.77 0.80 0.82 0.85 0.87 0.90 0.92 0.95 0.98 1.00 1.03 1.05 1.08 1.10 1.13 1.15 1.18 1.21 1.23 1.26 1.28 1.31 1.33 1.36 1.39 1.41 1.44 1.46 1.49 1.51 1.54
Technical Manual V-Belts
Power Ratings optibelt SUPER TX M=S Section BX/X17 Nominal Power Rating PN (kW) for
= 180째 and Ld = 2280 mm
Statically balanced
v (m/s)
Pulleys
Table 43 nk
Datum diameter of small pulley ddk (mm)
(min-1)
90
100
106
112
118
125
132
140
160
180
190
200
212
224
250
280
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000
1.70 2.12 2.82 4.16 0.37 0.64 0.89 1.11 1.32 1.51 1.70 1.87 2.04 2.19 2.35 2.49 2.63 2.76 2.89 3.01 3.13 3.24 3.35 3.45 3.55 3.64 3.73 3.82 3.90 3.98 4.05 4.12 4.19 4.25 4.31 4.36 4.41 4.46 4.50 4.54 4.57 4.60 4.63 4.65 4.67 4.68 4.69 4.70 4.70 4.70 4.69 4.68 4.66 4.64
2.01 2.52 3.39 5.06 0.42 0.75 1.04 1.31 1.56 1.79 2.01 2.22 2.42 2.61 2.80 2.98 3.15 3.31 3.47 3.62 3.76 3.90 4.04 4.17 4.29 4.41 4.53 4.63 4.74 4.84 4.93 5.02 5.11 5.19 5.26 5.33 5.39 5.45 5.51 5.56 5.60 5.64 5.68 5.71 5.73 5.75 5.77 5.78 5.78 5.78 5.77 5.76 5.74 5.72
2.20 2.76 3.72 5.59 0.46 0.82 1.13 1.42 1.70 1.95 2.20 2.43 2.65 2.86 3.07 3.26 3.45 3.63 3.81 3.98 4.14 4.30 4.45 4.59 4.73 4.86 4.99 5.11 5.23 5.34 5.44 5.54 5.64 5.73 5.81 5.89 5.96 6.03 6.09 6.14 6.19 6.24 6.27 6.31 6.33 6.35 6.37 6.38 6.38 6.37 6.36 6.35 6.32 6.29
2.38 2.99 4.05 6.10 0.49 0.88 1.22 1.54 1.83 2.11 2.38 2.63 2.87 3.11 3.33 3.55 3.75 3.95 4.14 4.33 4.51 4.68 4.85 5.00 5.16 5.30 5.44 5.58 5.70 5.83 5.94 6.05 6.15 6.25 6.34 6.43 6.50 6.58 6.64 6.70 6.75 6.80 6.84 6.87 6.90 6.92 6.93 6.94 6.93 6.93 6.91 6.89 6.86 6.82
2.56 3.23 4.37 6.60 0.53 0.94 1.31 1.65 1.97 2.27 2.56 2.84 3.10 3.35 3.59 3.83 4.05 4.27 4.48 4.68 4.87 5.06 5.24 5.41 5.58 5.73 5.89 6.03 6.17 6.30 6.43 6.54 6.65 6.76 6.86 6.95 7.03 7.11 7.17 7.24 7.29 7.34 7.38 7.41 7.43 7.45 7.46 7.46 7.45 7.44 7.41 7.38 7.34 7.29
2.77 3.49 4.75 7.16 0.57 1.01 1.41 1.78 2.13 2.46 2.77 3.07 3.36 3.63 3.89 4.15 4.39 4.63 4.86 5.08 5.29 5.49 5.69 5.88 6.06 6.23 6.39 6.55 6.70 6.84 6.98 7.10 7.22 7.33 7.43 7.53 7.62 7.70 7.77 7.83 7.88 7.93 7.96 7.99 8.01 8.02 8.02 8.02 8.00 7.97 7.94 7.89 7.84 7.77
2.98 3.76 5.11 7.70 0.61 1.09 1.52 1.91 2.29 2.64 2.98 3.30 3.61 3.91 4.19 4.47 4.73 4.99 5.23 5.47 5.70 5.92 6.13 6.33 6.53 6.71 6.89 7.06 7.21 7.37 7.51 7.64 7.77 7.88 7.99 8.09 8.18 8.26 8.33 8.39 8.44 8.48 8.51 8.53 8.54 8.55 8.54 8.52 8.49 8.45 8.39 8.33 8.26 8.17
3.21 4.06 5.53 8.30 0.65 1.17 1.63 2.06 2.47 2.85 3.21 3.56 3.90 4.22 4.53 4.83 5.11 5.39 5.66 5.91 6.16 6.40 6.62 6.84 7.05 7.25 7.44 7.62 7.78 7.94 8.09 8.23 8.36 8.48 8.59 8.69 8.78 8.86 8.93 8.98 9.03 9.06 9.08 9.09 9.09 9.08 9.06 9.02 8.97
3.79 4.79 6.53 9.67 0.76 1.37 1.92 2.43 2.90 3.36 3.79 4.20 4.60 4.98 5.35 5.70 6.04 6.37 6.68 6.98 7.27 7.55 7.81 8.06 8.30 8.52 8.74 8.94 9.12 9.30 9.46 9.60 9.73 9.85 9.96 10.05 10.13 10.19 10.23 10.26 10.28 10.28 10.26 10.23 10.18 10.11 10.02 9.92 9.80
4.35 5.51 7.49 10.86 0.87 1.57 2.20 2.78 3.33 3.85 4.35 4.83 5.29 5.72 6.14 6.55 6.94 7.31 7.66 8.00 8.32 8.63 8.92 9.20 9.46 9.70 9.93 10.14 10.33 10.51 10.66 10.80 10.92 11.03 11.11 11.17 11.22 11.24 11.24 11.23 11.19 11.13 11.05 10.94
4.63 5.86 7.95 11.39 0.93 1.67 2.34 2.96 3.54 4.10 4.63 5.14 5.62 6.09 6.53 6.96 7.37 7.76 8.14 8.49 8.83 9.15 9.45 9.74 10.01 10.25 10.48 10.69 10.88 11.06 11.21 11.34 11.44 11.53 11.60 11.64 11.66 11.66 11.63
4.90 6.20 8.40 11.87 0.98 1.76 2.47 3.13 3.75 4.34 4.90 5.44 5.95 6.44 6.91 7.36 7.80 8.21 8.60 8.97 9.32 9.65 9.97 10.26 10.53 10.78 11.01 11.22 11.40 11.57 11.71 11.82 11.92 11.99 12.03 12.05 12.04 12.00 11.94
5.23 6.61 8.94 12.39 1.04 1.88 2.63 3.34 4.00 4.63 5.23 5.80 6.34 6.86 7.36 7.84 8.29 8.73 9.14 9.53 9.89 10.24 10.56 10.86 11.13 11.38 11.61 11.81 11.98 12.13 12.25 12.35 12.42 12.45
5.55 7.01 9.45 12.82 1.11 1.99 2.80 3.54 4.24 4.91 5.55 6.15 6.73 7.28 7.80 8.31 8.78 9.23 9.66 10.07 10.44 10.80 11.12 11.42 11.69 11.94 12.16 12.35 12.51 12.64 12.73 12.80 12.84 12.84
6.22 7.85 10.52 13.51 1.24 2.24 3.14 3.98 4.77 5.51 6.22 6.90 7.54 8.15 8.73 9.28 9.80 10.29 10.74 11.17 11.56 11.92 12.25 12.54 12.80 13.02 13.20 13.35 13.46 13.52 13.55 13.53 13.47 13.37
6.98 8.78 11.66 13.82 1.40 2.52 3.53 4.47 5.36 6.19 6.98 7.73 8.44 9.12 9.75 10.34 10.90 11.42 11.90 12.33 12.73 13.08 13.38 13.64 13.86 14.02 14.14 14.20 14.21
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.03 0.04 0.07 0.13 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.13 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.19 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.22 0.23 0.23
0.12 0.17 0.26 0.50 0.02 0.04 0.05 0.07 0.09 0.11 0.12 0.14 0.16 0.18 0.19 0.21 0.23 0.25 0.26 0.28 0.30 0.32 0.33 0.35 0.37 0.39 0.41 0.42 0.44 0.46 0.48 0.49 0.51 0.53 0.55 0.56 0.58 0.60 0.62 0.63 0.65 0.67 0.69 0.71 0.72 0.74 0.76 0.78 0.79 0.81 0.83 0.85 0.86 0.88
SUPER TX M=S
0.18 0.24 0.37 0.72 0.03 0.05 0.08 0.10 0.13 0.15 0.18 0.20 0.23 0.25 0.28 0.31 0.33 0.36 0.38 0.41 0.43 0.46 0.48 0.51 0.53 0.56 0.58 0.61 0.64 0.66 0.69 0.71 0.74 0.76 0.79 0.81 0.84 0.86 0.89 0.92 0.94 0.97 0.99 1.02 1.04 1.07 1.09 1.12 1.14 1.17 1.19 1.22 1.25 1.27
0.28 0.37 0.57 1.12 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.32 0.35 0.39 0.43 0.47 0.51 0.55 0.59 0.63 0.67 0.71 0.75 0.79 0.83 0.87 0.91 0.95 0.99 1.02 1.06 1.10 1.14 1.18 1.22 1.26 1.30 1.34 1.38 1.42 1.46 1.50 1.54 1.58 1.62 1.65 1.69 1.73 1.77 1.81 1.85 1.89 1.93 1.97
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
99
Technical Manual V-Belts
Power Ratings optibelt SUPER TX M=S Section CX/X22 Nominal Power Rating PN (kW) for
= 180째 and Ld = 3808 mm
Statically balanced
v (m/s)
Pulleys
Table 44 nk
Datum diameter of small pulley ddk (mm)
(min-1)
140
150
160
180
200
224
250
280
315
700 950 1450 2850 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 3050 3100 3150 3200 3250 3300 3350 3400 3450 3500
4.81 6.07 8.23 12.16 0.54 0.98 1.38 1.76 2.11 2.45 2.78 3.10 3.40 3.70 3.99 4.27 4.55 4.81 5.08 5.33 5.58 5.83 6.07 6.31 6.54 6.77 6.99 7.21 7.42 7.63 7.83 8.04 8.23 8.43 8.61 8.80 8.98 9.16 9.33 9.50 9.67 9.83 9.99 10.14 10.29 10.44 10.58 10.72 10.85 10.98 11.11 11.23 11.35 11.47 11.58 11.68 11.79 11.89 11.98 12.07 12.16 12.24 12.32 12.39 12.46 12.53 12.59 12.65 12.70 12.75 12.79 12.83 12.87 12.90
5.29 6.68 9.07 13.34 0.59 1.07 1.51 1.92 2.31 2.69 3.05 3.39 3.73 4.06 4.38 4.69 4.99 5.29 5.58 5.86 6.14 6.42 6.68 6.94 7.20 7.45 7.70 7.94 8.17 8.40 8.63 8.85 9.07 9.28 9.49 9.70 9.90 10.09 10.28 10.47 10.65 10.83 11.00 11.17 11.33 11.49 11.65 11.80 11.95 12.09 12.22 12.36 12.48 12.61 12.73 12.84 12.95 13.05 13.15 13.25 13.34 13.42 13.50 13.58 13.65 13.71 13.77 13.83 13.88 13.92 13.96 14.00 14.03 14.05
5.76 7.28 9.89 14.45 0.64 1.16 1.64 2.08 2.51 2.92 3.31 3.69 4.06 4.42 4.76 5.10 5.44 5.76 6.08 6.39 6.69 6.99 7.28 7.57 7.85 8.12 8.39 8.66 8.91 9.17 9.41 9.66 9.89 10.12 10.35 10.57 10.79 11.00 11.21 11.41 11.61 11.80 11.99 12.17 12.34 12.52 12.68 12.84 13.00 13.15 13.29 13.43 13.57 13.70 13.82 13.94 14.05 14.16 14.26 14.36 14.45 14.53 14.61 14.68 14.75 14.81 14.87 14.92 14.96 15.00 15.03 15.05 15.07 15.08
6.69 8.46 11.49 16.45 0.74 1.34 1.89 2.41 2.90 3.37 3.83 4.27 4.70 5.12 5.52 5.92 6.31 6.69 7.06 7.42 7.77 8.12 8.46 8.79 9.12 9.44 9.75 10.06 10.35 10.65 10.93 11.21 11.49 11.75 12.01 12.27 12.51 12.76 12.99 13.22 13.44 13.66 13.87 14.07 14.26 14.45 14.64 14.81 14.98 15.14 15.30 15.44 15.58 15.72 15.84 15.96 16.08 16.18 16.28 16.37 16.45 16.52 16.59 16.65 16.70 16.74 16.77 16.80 16.82 16.83 16.83 16.82 16.81 16.78
7.59 9.61 13.01 18.14 0.83 1.51 2.14 2.72 3.28 3.82 4.34 4.84 5.33 5.81 6.27 6.72 7.16 7.59 8.01 8.42 8.83 9.22 9.61 9.98 10.35 10.71 11.06 11.41 11.75 12.07 12.39 12.71 13.01 13.31 13.60 13.88 14.15 14.42 14.68 14.92 15.16 15.40 15.62 15.84 16.04 16.24 16.43 16.62 16.79 16.95 17.11 17.25 17.39 17.52 17.63 17.74 17.84 17.93 18.01 18.08 18.14 18.19 18.23 18.26 18.27 18.28 18.28 18.26 18.24
8.65 10.94 14.76 19.73 0.94 1.72 2.43 3.10 3.74 4.35 4.94 5.52 6.08 6.62 7.15 7.66 8.16 8.65 9.13 9.60 10.06 10.50 10.94 11.37 11.78 12.19 12.59 12.97 13.35 13.72 14.07 14.42 14.76 15.08 15.40 15.71 16.00 16.29 16.56 16.83 17.08 17.33 17.56 17.78 17.99 18.19 18.38 18.56 18.72 18.87 19.01 19.14 19.26 19.36 19.45 19.53 19.60 19.65 19.69 19.72 19.73 19.73 19.72 19.69
9.77 12.34 16.54 20.88 1.06 1.94 2.74 3.50 4.22 4.91 5.59 6.23 6.86 7.48 8.07 8.65 9.22 9.77 10.31 10.84 11.35 11.85 12.34 12.82 13.28 13.73 14.17 14.59 15.01 15.41 15.80 16.17 16.54 16.89 17.22 17.55 17.86 18.16 18.44 18.71 18.97 19.21 19.44 19.66 19.86 20.04 20.21 20.36 20.50 20.63 20.73 20.82 20.90 20.96 21.00 21.02 21.03 21.02 20.99
11.03 13.89 18.44 21.39 1.20 2.19 3.09 3.95 4.77 5.55 6.31 7.05 7.76 8.45 9.12 9.77 10.41 11.03 11.64 12.22 12.80 13.35 13.89 14.42 14.93 15.42 15.90 16.37 16.81 17.25 17.66 18.06 18.44 18.81 19.16 19.49 19.81 20.11 20.38 20.65 20.89 21.11 21.32 21.50 21.67 21.81 21.94 22.05 22.13 22.19 22.23 22.25 22.25 22.23
12.45 15.62 20.47 20.80 1.35 2.47 3.50 4.47 5.40 6.29 7.14 7.97 8.77 9.55 10.31 11.04 11.76 12.45 13.13 13.78 14.41 15.03 15.62 16.20 16.76 17.29 17.81 18.30 18.78 19.23 19.67 20.08 20.47 20.83 21.18 21.50 21.80 22.07 22.33 22.55 22.75 22.93 23.08 23.20 23.30 23.37 23.41 23.42 23.40
335
355
400
450
500
630
13.24 14.02 15.70 17.48 19.17 23.07 16.58 17.50 19.46 21.47 23.28 26.99 21.52 22.50 24.39 25.99 27.00 26.57 1.44 2.63 3.73 4.76 5.75 6.70 7.61 8.49 9.34 10.17 10.97 11.75 12.51 13.24 13.95 14.64 15.31 15.95 16.58 17.17 17.75 18.31 18.84 19.35 19.83 20.29 20.73 21.14 21.52 21.88 22.21 22.52 22.80 23.05 23.27 23.46 23.63 23.76 23.86 23.93
1.53 2.79 3.96 5.06 6.10 7.10 8.07 9.00 9.91 10.78 11.63 12.45 13.25 14.02 14.76 15.48 16.18 16.85 17.50 18.12 18.71 19.28 19.82 20.34 20.83 21.29 21.72 22.12 22.50 22.84 23.15 23.43 23.68 23.90 24.09
1.72 3.15 4.46 5.70 6.88 8.00 9.09 10.14 11.15 12.12 13.07 13.98 14.86 15.70 16.52 17.30 18.06 18.78 19.46 20.12 20.74 21.32 21.87 22.39 22.87 23.31 23.71 24.07 24.39 24.67 24.91 25.11 25.27 25.37 25.44
1.94 3.54 5.01 6.40 7.72 8.98 10.19 11.36 12.48 13.56 14.60 15.60 16.56 17.48 18.36 19.20 20.00 20.76 21.47 22.14 22.76 23.34 23.87 24.35 24.78 25.16 25.49 25.77 25.99 26.15
2.15 3.93 5.56 7.09 8.55 9.94 11.27 12.55 13.78 14.95 16.08 17.16 18.19 19.17 20.10 20.97 21.80 22.57 23.28 23.94 24.53 25.07 25.55 25.96 26.31
2.69 4.90 6.93 8.83 10.62 12.33 13.95 15.49 16.96 18.34 19.65 20.87 22.02 23.07 24.04 24.93 25.71 26.40 26.99 27.48 27.86 28.13 28.28 28.31 28.23
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.06 0.08 0.13 0.25 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.13 0.13 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.22 0.23 0.23 0.24 0.24 0.25 0.25 0.26 0.26 0.26 0.27 0.27 0.28 0.28 0.29 0.29 0.29 0.30 0.30 0.31
0.23 0.32 0.48 0.95 0.02 0.03 0.05 0.07 0.08 0.10 0.12 0.13 0.15 0.17 0.18 0.20 0.22 0.23 0.25 0.27 0.28 0.30 0.32 0.33 0.35 0.36 0.38 0.40 0.41 0.43 0.45 0.46 0.48 0.50 0.51 0.53 0.55 0.56 0.58 0.60 0.61 0.63 0.65 0.66 0.68 0.70 0.71 0.73 0.75 0.76 0.78 0.80 0.81 0.83 0.85 0.86 0.88 0.90 0.91 0.93 0.95 0.96 0.98 0.99 1.01 1.03 1.04 1.06 1.08 1.09 1.11 1.13 1.14 1.16
SUPER TX M=S
Where v > 30 m/s, please consult our Applications Engineering Department
0.33 0.45 0.69 1.36 0.02 0.05 0.07 0.10 0.12 0.14 0.17 0.19 0.22 0.24 0.26 0.29 0.31 0.33 0.36 0.38 0.41 0.43 0.45 0.48 0.50 0.53 0.55 0.57 0.60 0.62 0.65 0.67 0.69 0.72 0.74 0.77 0.79 0.81 0.84 0.86 0.88 0.91 0.93 0.96 0.98 1.00 1.03 1.05 1.08 1.10 1.12 1.15 1.17 1.20 1.22 1.24 1.27 1.29 1.32 1.34 1.36 1.39 1.41 1.43 1.46 1.48 1.51 1.53 1.55 1.58 1.60 1.63 1.65 1.67
v (m/s) Dynamically balanced (for details see DIN 2211)
100
Pulleys
0.52 0.70 1.07 2.11 0.04 0.07 0.11 0.15 0.19 0.22 0.26 0.30 0.33 0.37 0.41 0.44 0.48 0.52 0.56 0.59 0.63 0.67 0.70 0.74 0.78 0.82 0.85 0.89 0.93 0.96 1.00 1.04 1.07 1.11 1.15 1.19 1.22 1.26 1.30 1.33 1.37 1.41 1.45 1.48 1.52 1.56 1.59 1.63 1.67 1.70 1.74 1.78 1.82 1.85 1.89 1.93 1.96 2.00 2.04 2.08 2.11 2.15 2.19 2.22 2.26 2.30 2.33 2.37 2.41 2.45 2.48 2.52 2.56 2.59
Technical Manual V-Belts
Power Ratings optibelt VB section 5 – raw edge – moulded cogged Nominal Power Rating PN (kW) for
= 180° and Ld = 312 mm
Statically balanced
v (m/s)
Pulleys
Table 45 nk
Datum diameter of small pulley ddk (mm)
(min-1)
16
18
20
22.4
25
28
31.5
33.5
40
45
700 950 1450 2850 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000
0.02 0.02 0.03 0.06 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.10 0.10
0.02 0.03 0.04 0.07 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.13
0.03 0.04 0.05 0.09 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.15 0.15 0.16 0.16 0.16 0.16 0.16
0.03 0.04 0.06 0.11 0.01 0.02 0.02 0.02 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18 0.18 0.19 0.19 0.19 0.19 0.20 0.20
0.04 0.05 0.07 0.13 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.16 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.20 0.20 0.20 0.21 0.21 0.21 0.22 0.22 0.22 0.23 0.23 0.23 0.24 0.24
0.04 0.06 0.08 0.15 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.20 0.20 0.21 0.21 0.21 0.22 0.22 0.23 0.23 0.24 0.24 0.24 0.25 0.25 0.26 0.26 0.26 0.27 0.27 0.28 0.28 0.28
0.05 0.07 0.10 0.18 0.02 0.02 0.03 0.04 0.05 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.19 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.23 0.23 0.24 0.24 0.25 0.25 0.26 0.26 0.27 0.27 0.28 0.28 0.29 0.29 0.30 0.30 0.31 0.31 0.32 0.32 0.33 0.33 0.34
0.06 0.07 0.11 0.19 0.02 0.03 0.03 0.04 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.10 0.10 0.11 0.12 0.12 0.13 0.13 0.14 0.15 0.15 0.16 0.17 0.17 0.18 0.18 0.19 0.19 0.20 0.21 0.21 0.22 0.22 0.23 0.24 0.24 0.25 0.25 0.26 0.26 0.27 0.27 0.28 0.28 0.29 0.30 0.30 0.31 0.31 0.32 0.32 0.33 0.33 0.34 0.34 0.35 0.35 0.36 0.36
0.07 0.09 0.13 0.24 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.10 0.11 0.12 0.13 0.14 0.14 0.15 0.16 0.17 0.18 0.18 0.19 0.20 0.21 0.21 0.22 0.23 0.24 0.24 0.25 0.26 0.27 0.27 0.28 0.29 0.29 0.30 0.31 0.32 0.32 0.33 0.34 0.34 0.35 0.36 0.36 0.37 0.38 0.38 0.39 0.40 0.40 0.41 0.42 0.42 0.43 0.44 0.44 0.45 0.46
0.08 0.10 0.15 0.28 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.31 0.32 0.33 0.34 0.35 0.36 0.36 0.37 0.38 0.39 0.40 0.40 0.41 0.42 0.43 0.44 0.44 0.45 0.46 0.47 0.47 0.48 0.49 0.50 0.50 0.51 0.52 0.53
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.000 0.000 0.001 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.003 0.003 0.003 0.003
0.001 0.002 0.002 0.005 0.000 0.001 0.001 0.001 0.001 0.001 0.001 0.002 0.002 0.002 0.002 0.002 0.002 0.003 0.003 0.003 0.003 0.003 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.005 0.005 0.005 0.005 0.005 0.006 0.006 0.006 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.007 0.007 0.008 0.008 0.008 0.008 0.008 0.008 0.009 0.009 0.009 0.009 0.009 0.009 0.010 0.010 0.010 0.010
0.002 0.002 0.004 0.007 0.000 0.001 0.001 0.001 0.001 0.002 0.002 0.002 0.002 0.003 0.003 0.003 0.003 0.004 0.004 0.004 0.004 0.005 0.005 0.005 0.005 0.006 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.007 0.008 0.008 0.008 0.008 0.009 0.009 0.009 0.009 0.010 0.010 0.010 0.010 0.011 0.011 0.011 0.011 0.012 0.012 0.012 0.012 0.013 0.013 0.013 0.013 0.014 0.014 0.014 0.014 0.015
0.003 0.004 0.005 0.011 0.001 0.001 0.001 0.002 0.002 0.003 0.003 0.003 0.004 0.004 0.004 0.005 0.005 0.006 0.006 0.006 0.007 0.007 0.007 0.008 0.008 0.009 0.009 0.009 0.010 0.010 0.010 0.011 0.011 0.012 0.012 0.012 0.013 0.013 0.013 0.014 0.014 0.015 0.015 0.015 0.016 0.016 0.016 0.017 0.017 0.018 0.018 0.018 0.019 0.019 0.019 0.020 0.020 0.021 0.021 0.021 0.022 0.022 0.022
v (m/s) Statically balanced
Pulleys
101
Technical Manual V-Belts
Power Ratings optibelt VB section Y/6 – raw edge – moulded cogged Nominal Power Rating PN (kW) for
= 180° and Ld = 315 mm
Statically balanced
v (m/s)
Pulleys
Table 46 nk
Datum diameter of small pulley ddk (mm)
(min-1)
20
22.4
25
28
31.5
35.5
40
45
50
56
700 950 1450 2850 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000
0.03 0.03 0.05 0.08 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.13 0.14 0.14 0.14 0.14
0.03 0.04 0.06 0.11 0.01 0.02 0.02 0.02 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.16 0.16 0.17 0.17 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.19 0.19 0.20 0.20
0.04 0.05 0.08 0.14 0.01 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.16 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.19 0.20 0.20 0.21 0.21 0.21 0.22 0.22 0.22 0.23 0.23 0.24 0.24 0.24 0.25 0.25 0.25 0.26 0.26
0.05 0.07 0.10 0.18 0.02 0.02 0.03 0.04 0.04 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.09 0.10 0.11 0.11 0.12 0.12 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.23 0.23 0.24 0.24 0.25 0.25 0.26 0.26 0.27 0.27 0.28 0.28 0.28 0.29 0.29 0.30 0.30 0.31 0.31 0.32 0.32 0.33 0.33
0.06 0.08 0.12 0.22 0.02 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.09 0.09 0.10 0.11 0.12 0.12 0.13 0.14 0.15 0.15 0.16 0.17 0.17 0.18 0.19 0.19 0.20 0.21 0.22 0.22 0.23 0.24 0.24 0.25 0.25 0.26 0.27 0.27 0.28 0.29 0.29 0.30 0.31 0.31 0.32 0.32 0.33 0.34 0.34 0.35 0.35 0.36 0.36 0.37 0.38 0.38 0.39 0.39 0.40 0.40 0.41
0.08 0.10 0.15 0.27 0.02 0.03 0.05 0.06 0.07 0.08 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.19 0.20 0.21 0.22 0.23 0.24 0.24 0.25 0.26 0.27 0.28 0.29 0.29 0.30 0.31 0.32 0.33 0.33 0.34 0.35 0.36 0.36 0.37 0.38 0.39 0.39 0.40 0.41 0.42 0.42 0.43 0.44 0.44 0.45 0.46 0.47 0.47 0.48 0.49 0.49 0.50
0.09 0.12 0.17 0.32 0.03 0.04 0.05 0.07 0.08 0.09 0.10 0.11 0.12 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.51 0.52 0.53 0.54 0.55 0.56 0.56 0.57 0.58 0.59 0.60
0.11 0.14 0.20 0.38 0.03 0.05 0.06 0.08 0.09 0.11 0.12 0.13 0.15 0.16 0.17 0.19 0.20 0.21 0.22 0.24 0.25 0.26 0.27 0.29 0.30 0.31 0.32 0.33 0.35 0.36 0.37 0.38 0.39 0.40 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.54 0.55 0.56 0.57 0.58 0.59 0.60 0.61 0.62 0.63 0.64 0.65 0.65 0.66 0.67 0.68 0.69 0.70
0.12 0.16 0.24 0.43 0.04 0.06 0.07 0.09 0.10 0.12 0.14 0.15 0.17 0.18 0.20 0.21 0.23 0.24 0.26 0.27 0.29 0.30 0.32 0.33 0.34 0.36 0.37 0.38 0.40 0.41 0.43 0.44 0.45 0.47 0.48 0.49 0.50 0.52 0.53 0.54 0.55 0.57 0.58 0.59 0.60 0.61 0.63 0.64 0.65 0.66 0.67 0.68 0.70 0.71 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.79 0.80
0.14 0.18 0.27 0.50 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.19 0.21 0.23 0.25 0.26 0.28 0.30 0.31 0.33 0.35 0.36 0.38 0.40 0.41 0.43 0.44 0.46 0.48 0.49 0.51 0.52 0.54 0.55 0.57 0.58 0.60 0.61 0.62 0.64 0.65 0.67 0.68 0.69 0.71 0.72 0.73 0.75 0.76 0.77 0.79 0.80 0.81 0.82 0.84 0.85 0.86 0.87 0.88 0.89 0.90 0.91
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.001 0.001 0.002 0.004 0.000 0.000 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.008 0.008 0.008 0.008
0.003 0.005 0.007 0.014 0.001 0.001 0.002 0.002 0.003 0.003 0.004 0.004 0.005 0.005 0.006 0.006 0.007 0.007 0.008 0.008 0.009 0.009 0.010 0.010 0.011 0.011 0.012 0.012 0.013 0.013 0.014 0.014 0.015 0.015 0.016 0.016 0.017 0.017 0.018 0.018 0.019 0.019 0.020 0.020 0.021 0.021 0.022 0.022 0.023 0.023 0.024 0.024 0.025 0.025 0.026 0.026 0.027 0.027 0.028 0.028 0.029 0.029 0.030
0.005 0.007 0.010 0.020 0.001 0.002 0.003 0.004 0.004 0.005 0.006 0.006 0.007 0.008 0.009 0.009 0.010 0.011 0.011 0.012 0.013 0.014 0.014 0.015 0.016 0.016 0.017 0.018 0.019 0.019 0.020 0.021 0.021 0.022 0.023 0.024 0.024 0.025 0.026 0.026 0.027 0.028 0.029 0.029 0.030 0.031 0.031 0.032 0.033 0.034 0.034 0.035 0.036 0.037 0.037 0.038 0.039 0.039 0.040 0.041 0.042 0.042 0.043
v (m/s) Statically balanced
102
Pulleys
0.008 0.011 0.016 0.032 0.002 0.003 0.004 0.006 0.007 0.008 0.009 0.010 0.011 0.012 0.013 0.014 0.016 0.017 0.018 0.019 0.020 0.021 0.022 0.023 0.024 0.026 0.027 0.028 0.029 0.030 0.031 0.032 0.033 0.034 0.036 0.037 0.038 0.039 0.040 0.041 0.042 0.043 0.044 0.045 0.047 0.048 0.049 0.050 0.051 0.052 0.053 0.054 0.055 0.057 0.058 0.059 0.060 0.061 0.062 0.063 0.064 0.065 0.067
Technical Manual V-Belts
Power Ratings optibelt VB section 8 Nominal Power Rating PN (kW) for
= 180째 and Ld = 579 mm
v (m/s)
nk
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57
Datum diameter of small pulley ddk (mm)
(min-1)
35
40
45
50
56
63
71
80
90
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6200 6400 6600 6800 7000 7200 7400 7600 7800 8000
0.12 0.15 0.19 0.28 0.03 0.05 0.06 0.08 0.09 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.20 0.21 0.22 0.22 0.23 0.24 0.24 0.25 0.25 0.26 0.27 0.27 0.27 0.28 0.28 0.29 0.29 0.30 0.30 0.30 0.31 0.31 0.31 0.31 0.32 0.32 0.32 0.32 0.33 0.33 0.33 0.33 0.33 0.33 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.33 0.33 0.33 0.32 0.32
0.15 0.19 0.25 0.38 0.03 0.06 0.08 0.10 0.12 0.13 0.15 0.17 0.18 0.19 0.21 0.22 0.23 0.24 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.34 0.35 0.36 0.37 0.38 0.38 0.39 0.40 0.40 0.41 0.42 0.42 0.43 0.43 0.44 0.44 0.45 0.45 0.46 0.46 0.47 0.47 0.48 0.48 0.48 0.49 0.49 0.49 0.50 0.50 0.50 0.51 0.51 0.51 0.51 0.51 0.52 0.52 0.52 0.52 0.53 0.53 0.53 0.53 0.53 0.53 0.52
0.18 0.23 0.31 0.48 0.04 0.07 0.09 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.25 0.27 0.29 0.30 0.32 0.33 0.34 0.36 0.37 0.38 0.40 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55 0.55 0.56 0.57 0.58 0.58 0.59 0.60 0.60 0.61 0.62 0.62 0.63 0.63 0.64 0.64 0.65 0.65 0.66 0.66 0.67 0.67 0.68 0.68 0.68 0.69 0.69 0.70 0.70 0.71 0.71 0.71 0.72 0.72 0.72
0.21 0.27 0.37 0.57 0.04 0.08 0.11 0.14 0.16 0.19 0.21 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.37 0.39 0.41 0.42 0.44 0.46 0.47 0.49 0.50 0.51 0.53 0.54 0.56 0.57 0.58 0.59 0.60 0.62 0.63 0.64 0.65 0.66 0.67 0.68 0.69 0.70 0.71 0.72 0.73 0.73 0.74 0.75 0.76 0.77 0.77 0.78 0.79 0.79 0.80 0.81 0.81 0.82 0.83 0.83 0.84 0.84 0.85 0.86 0.87 0.87 0.88 0.88 0.89 0.89 0.89 0.89
0.25 0.32 0.43 0.69 0.05 0.09 0.13 0.16 0.19 0.22 0.25 0.28 0.30 0.33 0.35 0.38 0.40 0.42 0.44 0.46 0.48 0.50 0.52 0.54 0.56 0.58 0.60 0.61 0.63 0.65 0.66 0.68 0.69 0.71 0.72 0.74 0.75 0.77 0.78 0.79 0.81 0.82 0.83 0.84 0.85 0.86 0.88 0.89 0.90 0.91 0.92 0.93 0.94 0.94 0.95 0.96 0.97 0.98 0.99 0.99 1.00 1.01 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.07 1.08 1.08 1.09 1.09
0.29 0.37 0.51 0.81 0.06 0.11 0.15 0.19 0.22 0.26 0.29 0.32 0.35 0.38 0.41 0.44 0.47 0.49 0.52 0.55 0.57 0.59 0.62 0.64 0.66 0.68 0.70 0.73 0.75 0.77 0.79 0.80 0.82 0.84 0.86 0.88 0.89 0.91 0.93 0.94 0.96 0.97 0.99 1.00 1.02 1.03 1.04 1.06 1.07 1.08 1.09 1.10 1.11 1.13 1.14 1.15 1.16 1.17 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.28 1.29 1.29 1.29
0.34 0.43 0.59 0.95 0.07 0.12 0.17 0.22 0.26 0.30 0.34 0.38 0.41 0.45 0.48 0.51 0.55 0.58 0.61 0.64 0.67 0.69 0.72 0.75 0.77 0.80 0.83 0.85 0.87 0.90 0.92 0.94 0.96 0.99 1.01 1.03 1.05 1.07 1.09 1.10 1.12 1.14 1.16 1.17 1.19 1.21 1.22 1.24 1.25 1.27 1.28 1.29 1.31 1.32 1.33 1.34 1.35 1.36 1.38 1.38 1.39 1.40 1.41 1.42 1.43 1.45 1.46 1.47 1.48 1.48 1.48 1.49 1.49 1.48
0.39 0.50 0.69 1.11 0.08 0.14 0.20 0.25 0.30 0.35 0.39 0.43 0.48 0.52 0.56 0.59 0.63 0.67 0.70 0.74 0.77 0.80 0.84 0.87 0.90 0.93 0.96 0.98 1.01 1.04 1.07 1.09 1.12 1.14 1.17 1.19 1.21 1.24 1.26 1.28 1.30 1.32 1.34 1.36 1.38 1.40 1.41 1.43 1.45 1.46 1.48 1.49 1.51 1.52 1.53 1.55 1.56 1.57 1.58 1.59 1.60 1.61 1.62 1.63 1.64 1.65 1.66 1.67 1.67 1.67 1.67 1.67 1.66 1.65
0.45 0.57 0.79 1.27 0.09 0.16 0.23 0.28 0.34 0.40 0.45 0.50 0.55 0.59 0.64 0.68 0.72 0.77 0.81 0.85 0.88 0.92 0.96 0.99 1.03 1.06 1.10 1.13 1.16 1.19 1.22 1.25 1.28 1.31 1.34 1.36 1.39 1.41 1.44 1.46 1.49 1.51 1.53 1.55 1.57 1.59 1.61 1.63 1.65 1.66 1.68 1.69 1.71 1.72 1.74 1.75 1.76 1.77 1.78 1.79 1.80 1.81 1.82 1.82 1.83 1.84 1.84 1.84 1.84 1.84 1.83 1.81 1.80 1.78
VB Where v > 30 m/s, please consult our Applications Engineering Department
Statically balanced
Pulleys
Table 47
0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02
0.01 0.01 0.02 0.03 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09
0.01 0.02 0.03 0.05 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.11 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.14 0.15
0.01 0.02 0.03 0.06 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.12 0.13 0.13 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.17
v (m/s) Dynamically balanced
Pulleys
103
Technical Manual V-Belts
Power Ratings optibelt VB section Z/10 Nominal Power Rating PN (kW) for
= 180째 and Ld = 822 mm
v (m/s)
nk
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57
Datum diameter of small pulley ddk (mm)
(min-1)
45
50
56
63
71
80
90
100
112
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 7600 7800 8000 8200 8400
0.18 0.22 0.29 0.42 0.04 0.07 0.09 0.12 0.14 0.16 0.18 0.19 0.21 0.23 0.24 0.25 0.27 0.28 0.29 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.39 0.40 0.41 0.42 0.42 0.43 0.44 0.44 0.45 0.46 0.46 0.47 0.47 0.48 0.48 0.48 0.49 0.49 0.49 0.50 0.50 0.50 0.50 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.50 0.50 0.49 0.49 0.48 0.47 0.46 0.45 0.44 0.42 0.41
0.22 0.28 0.38 0.58 0.05 0.08 0.12 0.15 0.17 0.20 0.22 0.25 0.27 0.29 0.31 0.33 0.35 0.37 0.39 0.40 0.42 0.44 0.45 0.47 0.48 0.50 0.51 0.52 0.54 0.55 0.56 0.57 0.59 0.60 0.61 0.62 0.63 0.64 0.65 0.66 0.67 0.68 0.68 0.69 0.70 0.71 0.71 0.72 0.73 0.73 0.74 0.74 0.75 0.75 0.76 0.76 0.77 0.77 0.77 0.78 0.78 0.79 0.79 0.79 0.79 0.79 0.79 0.78 0.78 0.77 0.77 0.76 0.75 0.74
0.28 0.35 0.48 0.77 0.06 0.10 0.14 0.18 0.21 0.25 0.28 0.31 0.34 0.37 0.39 0.42 0.45 0.47 0.49 0.52 0.54 0.56 0.59 0.61 0.63 0.65 0.67 0.69 0.70 0.72 0.74 0.76 0.77 0.79 0.81 0.82 0.84 0.85 0.87 0.88 0.90 0.91 0.92 0.93 0.95 0.96 0.97 0.98 0.99 1.00 1.01 1.02 1.03 1.04 1.05 1.05 1.06 1.07 1.08 1.08 1.09 1.10 1.11 1.12 1.12 1.13 1.13 1.13 1.13 1.12 1.12 1.11 1.11 1.10
0.34 0.44 0.60 0.98 0.07 0.12 0.17 0.22 0.26 0.30 0.34 0.38 0.42 0.45 0.49 0.52 0.56 0.59 0.62 0.65 0.68 0.71 0.74 0.77 0.79 0.82 0.85 0.87 0.90 0.92 0.94 0.97 0.99 1.01 1.03 1.06 1.08 1.10 1.12 1.14 1.15 1.17 1.19 1.21 1.22 1.24 1.26 1.27 1.29 1.30 1.32 1.33 1.34 1.35 1.37 1.38 1.39 1.40 1.41 1.42 1.44 1.45 1.47 1.48 1.49 1.49 1.50 1.50 1.50 1.50 1.49 1.49 1.48 1.47
0.42 0.53 0.74 1.22 0.08 0.15 0.21 0.26 0.32 0.37 0.42 0.46 0.51 0.55 0.60 0.64 0.68 0.72 0.76 0.80 0.84 0.87 0.91 0.94 0.98 1.01 1.05 1.08 1.11 1.14 1.17 1.20 1.23 1.26 1.29 1.31 1.34 1.37 1.39 1.42 1.44 1.46 1.49 1.51 1.53 1.55 1.57 1.59 1.61 1.63 1.65 1.67 1.68 1.70 1.71 1.73 1.74 1.76 1.77 1.78 1.80 1.82 1.84 1.85 1.86 1.87 1.88 1.88 1.88 1.88 1.87 1.86 1.85 1.83
0.50 0.64 0.89 1.47 0.10 0.17 0.25 0.31 0.38 0.44 0.50 0.55 0.61 0.66 0.72 0.77 0.82 0.87 0.91 0.96 1.01 1.05 1.10 1.14 1.18 1.22 1.26 1.30 1.34 1.38 1.42 1.46 1.49 1.53 1.56 1.59 1.63 1.66 1.69 1.72 1.75 1.78 1.81 1.83 1.86 1.89 1.91 1.93 1.96 1.98 2.00 2.02 2.04 2.06 2.08 2.10 2.11 2.13 2.14 2.16 2.18 2.20 2.22 2.23 2.24 2.25 2.25 2.25 2.24 2.23 2.22 2.20 2.17 2.15
0.59 0.75 1.06 1.75 0.11 0.20 0.29 0.37 0.44 0.51 0.59 0.65 0.72 0.78 0.85 0.91 0.97 1.03 1.08 1.14 1.19 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.64 1.69 1.73 1.77 1.81 1.85 1.89 1.93 1.97 2.01 2.04 2.08 2.11 2.14 2.17 2.20 2.23 2.26 2.29 2.32 2.34 2.37 2.39 2.41 2.43 2.45 2.47 2.49 2.50 2.52 2.53 2.56 2.57 2.59 2.60 2.60 2.60 2.59 2.58 2.56 2.53 2.50 2.47
0.67 0.86 1.22 2.02 0.13 0.23 0.33 0.42 0.51 0.59 0.67 0.75 0.83 0.90 0.97 1.05 1.11 1.18 1.25 1.31 1.38 1.44 1.50 1.56 1.62 1.68 1.73 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.18 2.22 2.27 2.31 2.35 2.39 2.42 2.46 2.49 2.53 2.56 2.59 2.62 2.65 2.67 2.70 2.72 2.75 2.77 2.79 2.80 2.82 2.83 2.85 2.86 2.88 2.89 2.90 2.89 2.88 2.87 2.85 2.82 2.78
0.77 1.00 1.40 2.33 0.15 0.27 0.38 0.48 0.58 0.68 0.77 0.87 0.95 1.04 1.12 1.21 1.29 1.37 1.44 1.52 1.59 1.66 1.73 1.80 1.87 1.94 2.00 2.06 2.12 2.18 2.24 2.30 2.35 2.41 2.46 2.51 2.56 2.60 2.65 2.69 2.74 2.78 2.81 2.85 2.89 2.92 2.95 2.98 3.01 3.04 3.06 3.08 3.10 3.12 3.14 3.15 3.16 3.17 3.18 3.19 3.19 3.19 3.18 3.15 3.12 3.08 3.03 2.97 2.90
VB Where v > 30 m/s, please consult our Applications Engineering Department
Statically balanced
Pulleys
Table 48
0.00 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.04
0.02 0.02 0.03 0.07 0.00 0.00 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.19 0.19 0.20 0.20
0.03 0.04 0.06 0.11 0.00 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.12 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.15 0.15 0.15 0.16 0.16 0.17 0.17 0.17 0.18 0.18 0.18 0.19 0.19 0.20 0.20 0.20 0.21 0.21 0.22 0.22 0.23 0.24 0.25 0.25 0.26 0.27 0.28 0.28 0.29 0.30 0.31 0.32 0.32
v (m/s) Dynamically balanced (for details see DIN 2211)
104
Pulleys
0.03 0.04 0.06 0.12 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.13 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.16 0.17 0.17 0.18 0.18 0.19 0.19 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.23 0.23 0.23 0.24 0.24 0.25 0.26 0.27 0.28 0.29 0.29 0.30 0.31 0.32 0.33 0.34 0.35 0.35 0.36
Technical Manual V-Belts
Power Ratings optibelt VB section A/13 Nominal Power Rating PN (kW) for
= 180째 and Ld = 1730 mm
Statically balanced
v (m/s)
Pulleys
Table 49 nk
Datum diameter of small pulley ddk (mm)
(min-1)
71
80
90
95
100
106
112
118
125
132
140
150
160
180
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000
0.52 0.63 0.81 1.04 0.12 0.21 0.29 0.35 0.41 0.47 0.52 0.57 0.61 0.65 0.69 0.73 0.76 0.79 0.82 0.85 0.88 0.90 0.92 0.94 0.96 0.97 0.99 1.00 1.01 1.02 1.03 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.96 0.94 0.92 0.90 0.88 0.85 0.83 0.80 0.77 0.73 0.70 0.66 0.62 0.58 0.54 0.50 0.45 0.40 0.35 0.30
0.74 0.92 1.22 1.75 0.16 0.28 0.39 0.48 0.57 0.66 0.74 0.81 0.88 0.95 1.01 1.08 1.14 1.19 1.24 1.30 1.34 1.39 1.44 1.48 1.52 1.55 1.59 1.62 1.66 1.68 1.71 1.74 1.76 1.78 1.80 1.81 1.83 1.84 1.85 1.86 1.86 1.87 1.87 1.87 1.86 1.86 1.85 1.84 1.82 1.81 1.79 1.77 1.75 1.72 1.69 1.66 1.63 1.59 1.55 1.51 1.47 1.42 1.37 1.32
0.97 1.23 1.67 2.51 0.20 0.36 0.50 0.63 0.75 0.86 0.97 1.08 1.18 1.27 1.37 1.46 1.54 1.63 1.71 1.78 1.86 1.93 2.00 2.06 2.12 2.18 2.24 2.30 2.35 2.40 2.45 2.49 2.53 2.57 2.61 2.64 2.67 2.70 2.72 2.74 2.76 2.78 2.79 2.80 2.81 2.81 2.81 2.81 2.80 2.79 2.78 2.76 2.74 2.72 2.69 2.66 2.63 2.59 2.55 2.51 2.46 2.41 2.35 2.29
1.09 1.38 1.89 2.88 0.22 0.39 0.55 0.70 0.84 0.97 1.09 1.21 1.32 1.44 1.54 1.64 1.74 1.84 1.93 2.02 2.11 2.19 2.27 2.35 2.42 2.49 2.56 2.63 2.69 2.75 2.80 2.86 2.91 2.95 3.00 3.04 3.08 3.11 3.14 3.17 3.19 3.21 3.23 3.24 3.25 3.26 3.26 3.26 3.26 3.25 3.24 3.22 3.20 3.18 3.15 3.12 3.08 3.04 3.00 2.95 2.90 2.84 2.78 2.71
1.21 1.53 2.11 3.25 0.24 0.43 0.61 0.77 0.92 1.07 1.21 1.34 1.47 1.59 1.71 1.83 1.94 2.05 2.16 2.26 2.36 2.45 2.54 2.63 2.72 2.80 2.88 2.95 3.02 3.09 3.16 3.22 3.28 3.33 3.38 3.43 3.47 3.51 3.55 3.58 3.61 3.64 3.66 3.67 3.69 3.70 3.70 3.70 3.70 3.69 3.68 3.66 3.64 3.61 3.58 3.55 3.51 3.46 3.41 3.36 3.30 3.23 3.16 3.09
1.35 1.71 2.37 3.67 0.26 0.48 0.67 0.85 1.02 1.19 1.35 1.50 1.64 1.78 1.92 2.05 2.18 2.30 2.42 2.54 2.65 2.76 2.87 2.97 3.06 3.16 3.25 3.33 3.42 3.50 3.57 3.64 3.71 3.77 3.83 3.88 3.93 3.98 4.02 4.06 4.09 4.12 4.15 4.17 4.18 4.19 4.20 4.20 4.19 4.18 4.17 4.15 4.12 4.09 4.06 4.01 3.97 3.91 3.86 3.79 3.72 3.64 3.56 3.47
1.48 1.89 2.62 4.09 0.29 0.52 0.74 0.94 1.13 1.31 1.48 1.65 1.82 1.97 2.13 2.27 2.42 2.55 2.69 2.82 2.95 3.07 3.19 3.30 3.41 3.51 3.61 3.71 3.80 3.89 3.98 4.05 4.13 4.20 4.27 4.33 4.38 4.43 4.48 4.52 4.56 4.59 4.62 4.64 4.65 4.66 4.66 4.66 4.66 4.64 4.62 4.60 4.57 4.53 4.48 4.43 4.38 4.31 4.24
1.62 2.07 2.88 4.50 0.31 0.57 0.80 1.02 1.23 1.43 1.62 1.81 1.99 2.16 2.33 2.49 2.65 2.80 2.95 3.10 3.23 3.37 3.50 3.62 3.75 3.86 3.97 4.08 4.18 4.28 4.37 4.46 4.54 4.62 4.69 4.75 4.82 4.87 4.92 4.96 5.00 5.03 5.06 5.08 5.09 5.10 5.10 5.10 5.08 5.07 5.04 5.01 4.97 4.92 4.86 4.80 4.73 4.66 4.57
1.78 2.28 3.17 4.96 0.34 0.62 0.88 1.12 1.35 1.57 1.78 1.99 2.18 2.38 2.56 2.74 2.92 3.09 3.25 3.41 3.57 3.72 3.86 4.00 4.13 4.26 4.38 4.50 4.61 4.72 4.82 4.92 5.01 5.09 5.17 5.24 5.30 5.36 5.41 5.45 5.49 5.52 5.55 5.57 5.58 5.58 5.57 5.56 5.54 5.51 5.47 5.43 5.38 5.31
1.94 2.49 3.46 5.41 0.37 0.67 0.95 1.21 1.46 1.71 1.94 2.16 2.38 2.59 2.79 2.99 3.19 3.37 3.55 3.73 3.90 4.06 4.22 4.37 4.51 4.65 4.79 4.91 5.03 5.15 5.26 5.36 5.45 5.54 5.62 5.70 5.76 5.82 5.87 5.92 5.95 5.98 6.00 6.01 6.02 6.01 6.00 5.98 5.94 5.90 5.85 5.79 5.72 5.64
2.12 2.72 3.79 5.90 0.40 0.73 1.03 1.32 1.60 1.86 2.12 2.36 2.60 2.83 3.06 3.28 3.49 3.69 3.89 4.08 4.26 4.44 4.62 4.78 4.94 5.09 5.23 5.37 5.50 5.62 5.74 5.85 5.95 6.04 6.12 6.20 6.27 6.32 6.37 6.41 6.44 6.47 6.48 6.48 6.47 6.46 6.43 6.39 6.34
2.34 3.01 4.19 6.48 0.44 0.80 1.14 1.46 1.76 2.06 2.34 2.61 2.88 3.13 3.38 3.62 3.86 4.08 4.30 4.51 4.72 4.91 5.10 5.28 5.46 5.62 5.78 5.93 6.06 6.20 6.32 6.43 6.53 6.63 6.71 6.79 6.85 6.90 6.95 6.98 7.00 7.01 7.01 6.99 6.97 6.93 6.88 6.82 6.74
2.56 3.29 4.59 7.03 0.48 0.87 1.24 1.59 1.93 2.25 2.56 2.86 3.15 3.43 3.70 3.97 4.22 4.47 4.71 4.94 5.16 5.37 5.58 5.77 5.96 6.13 6.30 6.46 6.60 6.74 6.86 6.98 7.08 7.18 7.26 7.33 7.38 7.43 7.46 7.48 7.48 7.47 7.45 7.42 7.37
2.99 3.85 5.36 8.03 0.55 1.02 1.45 1.86 2.25 2.63 2.99 3.34 3.69 4.01 4.33 4.64 4.94 5.22 5.50 5.76 6.02 6.26 6.49 6.71 6.91 7.10 7.28 7.45 7.60 7.74 7.87 7.98 8.07 8.15 8.21 8.26 8.29 8.30 8.30
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.02 0.02 0.03 0.06 0.00 0.00 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13
0.08 0.10 0.16 0.31 0.01 0.02 0.03 0.04 0.05 0.06 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.45 0.46 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.61 0.62 0.63 0.64 0.65
0.12 0.16 0.25 0.49 0.02 0.03 0.05 0.07 0.09 0.10 0.12 0.14 0.16 0.17 0.19 0.21 0.22 0.24 0.26 0.28 0.29 0.31 0.33 0.35 0.36 0.38 0.40 0.42 0.43 0.45 0.47 0.48 0.50 0.52 0.54 0.55 0.57 0.59 0.61 0.62 0.64 0.66 0.67 0.69 0.71 0.73 0.74 0.76 0.78 0.80 0.81 0.83 0.85 0.87 0.88 0.90 0.92 0.93 0.95 0.97 0.99 1.00 1.02 1.04
0.14 0.18 0.28 0.55 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.19 0.21 0.23 0.25 0.27 0.29 0.31 0.33 0.35 0.37 0.39 0.41 0.43 0.45 0.47 0.49 0.51 0.53 0.54 0.56 0.58 0.60 0.62 0.64 0.66 0.68 0.70 0.72 0.74 0.76 0.78 0.80 0.82 0.84 0.86 0.88 0.89 0.91 0.93 0.95 0.97 0.99 1.01 1.03 1.05 1.07 1.09 1.11 1.13 1.15 1.17
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
105
Technical Manual V-Belts
Power Ratings optibelt VB section B/17 Nominal Power Rating PN (kW) for
= 180째 and Ld = 2280 mm
Statically balanced
v (m/s)
Pulleys
Table 50 nk
Datum diameter of small pulley ddk (mm)
(min-1)
112
125
132
140
150
160
170
180
190
200
212
224
236
250
280
700 950 1450 2850 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000
1.49 1.83 2.37 2.99 0.33 0.58 0.79 0.99 1.17 1.33 1.49 1.63 1.77 1.89 2.01 2.12 2.23 2.33 2.42 2.50 2.58 2.65 2.72 2.77 2.82 2.87 2.91 2.94 2.96 2.98 2.99 2.99 2.98 2.97 2.95 2.92 2.89 2.85 2.80 2.74 2.67 2.59 2.51 2.42 2.31 2.20 2.08 1.95 1.82 1.67 1.51 1.34 1.16 0.97
1.96 2.45 3.25 4.37 0.41 0.73 1.01 1.27 1.52 1.74 1.96 2.16 2.35 2.54 2.71 2.88 3.03 3.18 3.32 3.45 3.57 3.69 3.79 3.89 3.98 4.06 4.14 4.20 4.25 4.30 4.34 4.36 4.38 4.39 4.39 4.37 4.35 4.32 4.27 4.22 4.15 4.08 3.99 3.89 3.78 3.65 3.52 3.37 3.21 3.03 2.85 2.65 2.43 2.20
2.21 2.77 3.72 5.08 0.46 0.81 1.13 1.43 1.70 1.96 2.21 2.44 2.67 2.88 3.08 3.28 3.46 3.63 3.80 3.95 4.10 4.24 4.36 4.48 4.59 4.69 4.78 4.86 4.93 4.98 5.03 5.07 5.10 5.11 5.12 5.11 5.09 5.06 5.01 4.96 4.89 4.80 4.71 4.60 4.48 4.34 4.19 4.02 3.84 3.65 3.44 3.21 2.97 2.71
2.50 3.15 4.24 5.87 0.51 0.91 1.27 1.60 1.92 2.21 2.50 2.77 3.02 3.27 3.50 3.73 3.94 4.14 4.33 4.52 4.69 4.85 5.00 5.14 5.27 5.39 5.49 5.59 5.67 5.74 5.80 5.85 5.88 5.90 5.91 5.90 5.88 5.85 5.80 5.74 5.66 5.57 5.46 5.34 5.19 5.04 4.86 4.67 4.46
2.85 3.61 4.89 6.80 0.57 1.02 1.43 1.82 2.18 2.52 2.85 3.16 3.46 3.75 4.02 4.28 4.53 4.77 5.00 5.21 5.41 5.60 5.78 5.94 6.09 6.23 6.36 6.47 6.57 6.65 6.72 6.77 6.81 6.84 6.84 6.83 6.81 6.77 6.71 6.63 6.53 6.42 6.29 6.13 5.96 5.77 5.56 5.32 5.07
3.20 4.06 5.52 7.67 0.63 1.14 1.60 2.03 2.44 2.83 3.20 3.56 3.90 4.22 4.53 4.83 5.12 5.39 5.65 5.89 6.12 6.34 6.54 6.72 6.90 7.05 7.19 7.32 7.43 7.52 7.59 7.65 7.69 7.71 7.71 7.69 7.65 7.59 7.52 7.41 7.29 7.15 6.98 6.79
3.55 4.51 6.14 8.49 0.69 1.25 1.77 2.25 2.70 3.13 3.55 3.95 4.33 4.69 5.04 5.37 5.69 6.00 6.28 6.56 6.81 7.05 7.27 7.48 7.67 7.84 7.99 8.13 8.24 8.34 8.41 8.47 8.50 8.51 8.50 8.47 8.41 8.33 8.22 8.09 7.93 7.75 7.54 7.31
3.89 4.96 6.75 9.24 0.75 1.37 1.93 2.46 2.96 3.44 3.89 4.33 4.75 5.16 5.54 5.91 6.26 6.59 6.91 7.21 7.49 7.75 7.99 8.21 8.42 8.60 8.76 8.90 9.02 9.11 9.18 9.23 9.25 9.25 9.22 9.16 9.08 8.96 8.82
4.24 5.40 7.35 9.93 0.81 1.48 2.09 2.67 3.22 3.74 4.24 4.72 5.17 5.61 6.03 6.44 6.82 7.18 7.52 7.85 8.15 8.43 8.69 8.92 9.14 9.33 9.49 9.63 9.75 9.83 9.90 9.93 9.93 9.91 9.85 9.77 9.65 9.50 9.31
4.58 5.83 7.94 10.56 0.87 1.59 2.25 2.88 3.47 4.03 4.58 5.09 5.59 6.07 6.52 6.95 7.37 7.76 8.12 8.47 8.79 9.09 9.36 9.61 9.83 10.02 10.19 10.32 10.43 10.51 10.55 10.57 10.55 10.49 10.41 10.28 10.12 9.92 9.68
4.98 6.35 8.63 11.22 0.94 1.73 2.45 3.13 3.77 4.39 4.98 5.55 6.09 6.60 7.10 7.57 8.01 8.43 8.83 9.20 9.54 9.85 10.14 10.39 10.62 10.81 10.97 11.10 11.19 11.25 11.27 11.25 11.19 11.09
5.38 6.86 9.31 11.78 1.01 1.86 2.64 3.37 4.07 4.74 5.38 5.99 6.57 7.13 7.66 8.17 8.64 9.09 9.51 9.90 10.26 10.58 10.88 11.14 11.36 11.55 11.70 11.81 11.88 11.90 11.89 11.83 11.73 11.58
5.78 7.36 9.96 12.24 1.08 1.99 2.83 3.62 4.37 5.09 5.78 6.43 7.06 7.65 8.22 8.76 9.26 9.74 10.18 10.58 10.95 11.29 11.58 11.84 12.06 12.23 12.36 12.45 12.49 12.48 12.42 12.31 12.15 11.93
6.23 7.94 10.70 12.62 1.17 2.15 3.05 3.91 4.72 5.49 6.23 6.94 7.61 8.25 8.86 9.43 9.97 10.47 10.93 11.35 11.73 12.07 12.36 12.61 12.81 12.96 13.06 13.11 13.10
7.19 9.14 12.20 12.90 1.34 2.47 3.52 4.51 5.45 6.34 7.19 8.00 8.77 9.50 10.18 10.82 11.41 11.95 12.44 12.88 13.26 13.59 13.85 14.06 14.19 14.26 14.26 14.19 14.04
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.03 0.05 0.07 0.14 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.13 0.14 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.17 0.18 0.18 0.19 0.19 0.20 0.20 0.21 0.21 0.22 0.22 0.23 0.23 0.24 0.24
0.17 0.23 0.35 0.69 0.02 0.05 0.07 0.10 0.12 0.14 0.17 0.19 0.22 0.24 0.27 0.29 0.31 0.34 0.36 0.39 0.41 0.43 0.46 0.48 0.51 0.53 0.56 0.58 0.60 0.63 0.65 0.68 0.70 0.72 0.75 0.77 0.80 0.82 0.84 0.87 0.89 0.92 0.94 0.97 0.99 1.01 1.04 1.06 1.09 1.11 1.13 1.16 1.18 1.21
0.27 0.37 0.56 1.10 0.04 0.08 0.12 0.15 0.19 0.23 0.27 0.31 0.35 0.39 0.42 0.46 0.50 0.54 0.58 0.62 0.66 0.70 0.73 0.77 0.81 0.85 0.89 0.93 0.97 1.00 1.04 1.08 1.12 1.16 1.20 1.24 1.27 1.31 1.35 1.39 1.43 1.47 1.51 1.55 1.58 1.62 1.66 1.70 1.74 1.78 1.82 1.85 1.89 1.93
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
106
Pulleys
0.30 0.41 0.63 1.24 0.04 0.09 0.13 0.17 0.22 0.26 0.30 0.35 0.39 0.43 0.48 0.52 0.56 0.61 0.65 0.69 0.74 0.78 0.82 0.87 0.91 0.96 1.00 1.04 1.09 1.13 1.17 1.22 1.26 1.30 1.35 1.39 1.43 1.48 1.52 1.56 1.61 1.65 1.69 1.74 1.78 1.82 1.87 1.91 1.95 2.00 2.04 2.08 2.13 2.17
Technical Manual V-Belts
Power Ratings optibelt VB section C/22 Nominal Power Rating PN (kW) for
= 180째 and Ld = 3808 mm
Statically balanced
v (m/s)
Pulleys
Table 51 nk
Datum diameter of small pulley ddk (mm)
(min-1)
180
200
700 950 1450 2850 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 3050 3100 3150 3200 3250
4.51 5.60 7.23 7.54 0.53 0.95 1.34 1.69 2.03 2.35 2.66 2.95 3.23 3.51 3.77 4.03 4.27 4.51 4.74 4.97 5.18 5.39 5.60 5.79 5.98 6.16 6.33 6.50 6.66 6.81 6.96 7.09 7.23 7.35 7.46 7.57 7.67 7.77 7.85 7.93 8.00 8.06 8.12 8.16 8.20 8.23 8.25 8.26 8.26 8.25 8.24 8.21 8.18 8.13 8.08 8.01 7.94 7.86 7.76 7.66 7.54 7.42 7.28 7.14 6.98 6.81 6.63 6.44 6.24
5.66 7.08 9.24 9.81 0.64 1.16 1.63 2.07 2.49 2.90 3.28 3.66 4.02 4.37 4.71 5.04 5.36 5.66 5.97 6.26 6.54 6.81 7.08 7.33 7.58 7.82 8.05 8.27 8.48 8.69 8.88 9.07 9.24 9.41 9.57 9.71 9.85 9.98 10.10 10.20 10.30 10.39 10.46 10.53 10.58 10.63 10.66 10.68 10.69 10.68 10.67 10.64 10.60 10.55 10.48 10.40 10.31 10.20 10.08 9.95 9.81 9.64 9.47 9.28 9.08 8.86 8.62 8.37 8.11
212
224
236
250
265
280
300
315
335
355
375
400
450
6.35 7.02 7.69 8.47 9.28 10.09 11.16 11.94 12.98 14.00 15.00 16.22 18.58 7.95 8.81 9.67 10.64 11.67 12.69 14.01 14.98 16.24 17.47 18.66 20.10 22.79 10.42 11.56 12.67 13.93 15.24 16.49 18.08 19.20 20.62 21.93 23.13 24.46 26.56 0.70 1.28 1.80 2.30 2.77 3.22 3.66 4.08 4.48 4.88 5.26 5.63 6.00 6.35 6.69 7.02 7.34 7.65 7.95 8.24 8.52 8.80 9.06 9.31 9.55 9.78 10.00 10.22 10.42 10.60 10.78 10.95 11.11 11.25 11.38 11.50 11.61 11.71 11.79 11.87 11.92 11.97 12.00 12.02 12.03 12.02 12.00 11.96 11.91 11.84 11.76 11.66 11.55 11.42 11.28 11.12 10.94 10.75 10.54 10.31
0.76 1.39 1.97 2.52 3.04 3.54 4.03 4.49 4.95 5.39 5.81 6.23 6.63 7.02 7.40 7.77 8.13 8.48 8.81 9.14 9.45 9.76 10.05 10.33 10.60 10.86 11.10 11.34 11.56 11.77 11.97 12.15 12.32 12.48 12.62 12.75 12.87 12.97 13.06 13.14 13.20 13.24 13.27 13.28 13.28 13.26 13.23 13.17 13.10 13.02 12.91 12.79 12.65 12.49 12.32 12.12 11.91 11.67 11.42 11.15
0.83 1.51 2.15 2.75 3.32 3.87 4.40 4.91 5.41 5.89 6.36 6.82 7.26 7.69 8.11 8.52 8.91 9.29 9.67 10.02 10.37 10.70 11.02 11.33 11.63 11.91 12.18 12.43 12.67 12.90 13.11 13.31 13.49 13.66 13.82 13.95 14.07 14.18 14.27 14.34 14.40 14.43 14.45 14.45 14.44 14.40 14.35 14.27 14.18 14.07 13.94 13.78 13.61 13.41 13.19
0.90 1.65 2.35 3.00 3.63 4.24 4.82 5.39 5.94 6.47 6.99 7.50 7.99 8.47 8.93 9.38 9.81 10.24 10.64 11.04 11.42 11.79 12.14 12.47 12.80 13.10 13.40 13.67 13.93 14.18 14.41 14.62 14.81 14.99 15.14 15.28 15.41 15.51 15.59 15.65 15.70 15.72 15.72 15.71 15.67 15.60 15.52 15.41 15.28 15.13
0.98 1.80 2.56 3.28 3.97 4.64 5.28 5.90 6.51 7.09 7.67 8.22 8.76 9.28 9.79 10.29 10.76 11.23 11.67 12.11 12.52 12.92 13.30 13.67 14.02 14.35 14.66 14.96 15.24 15.50 15.73 15.95 16.15 16.33 16.49 16.63 16.74 16.83 16.90 16.95 16.97 16.97 16.95 16.90 16.83 16.73 16.60 16.45 16.26 16.06
1.06 1.95 2.77 3.55 4.31 5.03 5.73 6.41 7.07 7.71 8.33 8.94 9.52 10.09 10.65 11.18 11.70 12.20 12.69 13.15 13.60 14.03 14.44 14.83 15.21 15.56 15.89 16.20 16.49 16.76 17.00 17.23 17.42 17.60 17.75 17.88 17.98 18.06 18.10 18.13 18.12 18.09 18.03 17.94 17.82
1.16 2.14 3.05 3.92 4.75 5.55 6.33 7.08 7.81 8.52 9.21 9.88 10.53 11.16 11.77 12.36 12.93 13.48 14.01 14.52 15.01 15.47 15.91 16.34 16.73 17.11 17.46 17.78 18.08 18.35 18.60 18.81 19.00 19.17 19.30 19.40 19.47 19.51 19.52 19.50 19.44 19.35 19.23 19.07 18.87
1.24 2.28 3.26 4.19 5.08 5.94 6.77 7.58 8.36 9.12 9.86 10.58 11.27 11.94 12.60 13.23 13.83 14.42 14.98 15.52 16.03 16.52 16.98 17.42 17.83 18.22 18.58 18.91 19.20 19.47 19.71 19.92 20.10 20.24 20.35 20.43 20.47 20.47 20.44 20.37
1.34 2.48 3.54 4.55 5.52 6.45 7.36 8.24 9.09 9.92 10.72 11.50 12.25 12.98 13.68 14.36 15.01 15.64 16.24 16.81 17.36 17.87 18.36 18.82 19.24 19.64 20.00 20.33 20.62 20.88 21.10 21.28 21.43 21.54 21.61 21.64 21.62 21.57 21.47 21.32
1.44 2.67 3.81 4.91 5.95 6.97 7.94 8.89 9.81 10.70 11.57 12.41 13.21 14.00 14.75 15.47 16.17 16.83 17.47 18.07 18.64 19.18 19.68 20.15 20.58 20.98 21.33 21.65 21.93 22.16 22.36 22.51 22.61 22.67 22.69 22.65 22.57 22.44 22.25 22.02
1.54 2.86 4.09 5.26 6.39 7.47 8.52 9.54 10.53 11.48 12.41 13.30 14.16 15.00 15.80 16.56 17.30 18.00 18.66 19.29 19.88 20.43 20.94 21.42 21.85 22.23 22.58 22.87 23.13 23.33 23.48 23.59 23.64 23.64 23.58
1.67 3.09 4.43 5.70 6.92 8.10 9.24 10.34 11.41 12.44 13.44 14.40 15.33 16.22 17.07 17.89 18.67 19.40 20.10 20.75 21.36 21.92 22.43 22.90 23.32 23.69 24.00 24.26 24.46 24.61 24.70 24.72 24.69 24.59 24.42
1.92 3.56 5.10 6.57 7.98 9.34 10.66 11.92 13.14 14.32 15.46 16.55 17.59 18.58 19.53 20.42 21.27 22.05 22.79 23.46 24.07 24.62 25.11 25.53 25.88 26.17 26.37 26.51 26.56 26.54 26.43 26.24 25.96
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.08 0.11 0.16 0.32 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.10 0.10 0.11 0.11 0.12 0.12 0.13 0.14 0.14 0.15 0.15 0.16 0.16 0.17 0.18 0.18 0.19 0.19 0.20 0.20 0.21 0.22 0.22 0.23 0.23 0.24 0.24 0.25 0.25 0.26 0.27 0.27 0.28 0.28 0.29 0.29 0.30 0.31 0.31 0.32 0.32 0.33 0.33 0.34 0.35 0.35 0.36 0.36 0.37
0.40 0.54 0.82 1.61 0.03 0.06 0.08 0.11 0.14 0.17 0.20 0.23 0.25 0.28 0.31 0.34 0.37 0.40 0.42 0.45 0.48 0.51 0.54 0.57 0.59 0.62 0.65 0.68 0.71 0.74 0.76 0.79 0.82 0.85 0.88 0.91 0.93 0.96 0.99 1.02 1.05 1.07 1.10 1.13 1.16 1.19 1.22 1.24 1.27 1.30 1.33 1.36 1.39 1.41 1.44 1.47 1.50 1.53 1.56 1.58 1.61 1.64 1.67 1.70 1.73 1.75 1.78 1.81 1.84
0.63 0.86 1.31 2.58 0.05 0.09 0.14 0.18 0.23 0.27 0.32 0.36 0.41 0.45 0.50 0.54 0.59 0.63 0.68 0.72 0.77 0.81 0.86 0.91 0.95 1.00 1.04 1.09 1.13 1.18 1.22 1.27 1.31 1.36 1.40 1.45 1.49 1.54 1.58 1.63 1.67 1.72 1.77 1.81 1.86 1.90 1.95 1.99 2.04 2.08 2.13 2.17 2.22 2.26 2.31 2.35 2.40 2.44 2.49 2.53 2.58 2.63 2.67 2.72 2.76 2.81 2.85 2.90 2.94
0.71 0.97 1.48 2.90 0.05 0.10 0.15 0.20 0.25 0.31 0.36 0.41 0.46 0.51 0.56 0.61 0.66 0.71 0.76 0.81 0.87 0.92 0.97 1.02 1.07 1.12 1.17 1.22 1.27 1.32 1.37 1.42 1.48 1.53 1.58 1.63 1.68 1.73 1.78 1.83 1.88 1.93 1.98 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 3.00 3.05 3.10 3.15 3.21 3.26 3.31
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
107
Technical Manual V-Belts
Power Ratings optibelt VB section 20 Nominal Power Rating PN (kW) for
= 180째 and Ld = 3198 mm
Statically balanced
v (m/s)
Pulleys
Table 52 nk
Datum diameter of small pulley ddk (mm)
(min-1)
140
160
180
200
224
236
250
280
315
355
700 950 1450 2850 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000
2.62 3.21 4.08 4.64 0.34 0.60 0.82 1.04 1.23 1.42 1.59 1.76 1.92 2.07 2.22 2.36 2.49 2.62 2.75 2.87 2.99 3.10 3.21 3.31 3.41 3.51 3.60 3.69 3.78 3.86 3.94 4.01 4.08 4.15 4.22 4.28 4.34 4.39 4.44 4.49 4.53 4.57 4.61 4.64 4.67 4.70 4.72 4.74 4.75 4.76 4.77 4.77 4.77 4.77 4.76 4.75 4.74 4.72 4.69 4.67 4.64 4.60 4.56 4.52
3.33 4.11 5.30 6.11 0.41 0.73 1.02 1.28 1.53 1.76 1.99 2.20 2.41 2.61 2.80 2.98 3.16 3.33 3.50 3.66 3.81 3.96 4.11 4.25 4.39 4.52 4.64 4.76 4.88 4.99 5.10 5.20 5.30 5.40 5.49 5.57 5.65 5.73 5.80 5.87 5.93 5.98 6.04 6.08 6.13 6.16 6.20 6.22 6.25 6.27 6.28 6.29 6.29 6.28 6.28 6.26 6.24 6.22 6.19 6.15 6.11 6.06 6.01 5.95
4.02 4.99 6.46 7.29 0.48 0.86 1.20 1.52 1.82 2.11 2.38 2.64 2.89 3.13 3.37 3.59 3.81 4.02 4.23 4.43 4.62 4.81 4.99 5.16 5.33 5.49 5.65 5.80 5.94 6.08 6.21 6.34 6.46 6.58 6.69 6.79 6.89 6.98 7.07 7.15 7.22 7.29 7.35 7.41 7.45 7.50 7.53 7.56 7.58 7.60 7.61 7.61 7.60 7.59 7.57 7.54 7.51 7.47 7.42 7.36 7.29 7.22 7.14 7.05
4.70 5.83 7.56 8.16 0.55 0.99 1.39 1.76 2.11 2.44 2.76 3.07 3.37 3.65 3.93 4.19 4.45 4.70 4.94 5.18 5.40 5.62 5.83 6.04 6.24 6.43 6.61 6.79 6.96 7.12 7.27 7.42 7.56 7.69 7.82 7.94 8.05 8.15 8.24 8.33 8.41 8.48 8.55 8.60 8.65 8.69 8.71 8.74 8.75 8.75 8.75 8.73 8.71 8.67 8.63 8.58 8.51 8.44 8.36 8.27 8.16 8.05 7.93 7.79
5.49 6.82 8.80
5.88 7.30 9.38
6.32 7.84 10.03
7.25 8.97 11.32
8.30 10.21 12.61
9.44 11.53 13.81
0.63 1.15 1.61 2.04 2.45 2.84 3.22 3.58 3.92 4.26 4.58 4.90 5.20 5.49 5.78 6.05 6.32 6.57 6.82 7.06 7.29 7.51 7.72 7.92 8.11 8.30 8.47 8.64 8.80 8.94 9.08 9.21 9.33 9.43 9.53 9.62 9.69 9.76 9.81 9.86 9.89 9.91 9.92 9.92 9.91 9.88 9.84 9.79 9.73 9.66 9.57 9.47 9.35 9.22 9.08 8.92 8.75 8.57 8.37 8.16
0.68 1.22 1.72 2.18 2.62 3.04 3.44 3.83 4.20 4.56 4.90 5.24 5.56 5.88 6.18 6.48 6.76 7.03 7.30 7.55 7.79 8.03 8.25 8.47 8.67 8.86 9.05 9.22 9.38 9.53 9.67 9.80 9.92 10.02 10.12 10.20 10.27 10.33 10.38 10.41 10.43 10.44 10.43 10.41 10.38 10.34 10.28 10.20 10.11 10.01 9.89 9.76 9.61 9.44 9.26
0.72 1.31 1.84 2.34 2.82 3.27 3.70 4.11 4.51 4.90 5.28 5.64 5.99 6.32 6.65 6.97 7.27 7.56 7.84 8.11 8.37 8.62 8.86 9.08 9.30 9.50 9.69 9.87 10.03 10.18 10.33 10.45 10.57 10.67 10.76 10.83 10.89 10.94 10.97 10.99 10.99 10.98 10.95 10.91 10.85 10.77 10.68 10.57 10.44 10.30
0.83 1.50 2.11 2.68 3.23 3.75 4.24 4.72 5.18 5.63 6.06 6.47 6.87 7.25 7.63 7.98 8.33 8.66 8.97 9.27 9.56 9.83 10.09 10.33 10.56 10.77 10.97 11.15 11.32 11.46 11.60 11.71 11.81 11.89 11.95 11.99 12.02 12.02 12.01 11.97 11.92 11.84 11.75 11.63 11.49 11.33 11.14 10.94 10.71 10.45
0.94 1.71 2.42 3.07 3.70 4.29 4.87 5.41 5.94 6.45 6.94 7.41 7.86 8.30 8.72 9.12 9.50 9.87 10.21 10.54 10.85 11.14 11.41 11.66 11.90 12.11 12.30 12.47 12.61 12.74 12.84 12.92 12.97 13.00 13.01 12.99 12.94 12.87 12.77 12.65 12.49 12.31 12.10 11.86 11.59
1.08 1.96 2.76 3.51 4.23 4.91 5.56 6.19 6.79 7.36 7.92 8.45 8.96 9.44 9.91 10.35 10.77 11.16 11.53 11.88 12.20 12.50 12.77 13.01 13.23 13.42 13.58 13.71 13.81 13.88 13.92 13.93 13.90 13.84 13.75 13.62 13.46 13.26 13.02 12.74
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.04 0.05 0.07 0.15 0.00 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08 0.09 0.09 0.09 0.09 0.10 0.10 0.10 0.11 0.11 0.11 0.11 0.12 0.12 0.12 0.12 0.13 0.13 0.13 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.15 0.15
0.18 0.24 0.37 0.73 0.01 0.03 0.04 0.05 0.06 0.08 0.09 0.10 0.12 0.13 0.14 0.15 0.17 0.18 0.19 0.21 0.22 0.23 0.24 0.26 0.27 0.28 0.29 0.31 0.32 0.33 0.35 0.36 0.37 0.38 0.40 0.41 0.42 0.44 0.45 0.46 0.47 0.49 0.50 0.51 0.53 0.54 0.55 0.56 0.58 0.59 0.60 0.62 0.63 0.64 0.65 0.67 0.68 0.69 0.71 0.72 0.73 0.74 0.76 0.77
0.29 0.39 0.59 1.17 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.21 0.23 0.25 0.27 0.29 0.31 0.33 0.35 0.37 0.39 0.41 0.43 0.45 0.47 0.49 0.51 0.53 0.55 0.57 0.59 0.62 0.64 0.66 0.68 0.70 0.72 0.74 0.76 0.78 0.80 0.82 0.84 0.86 0.88 0.90 0.92 0.94 0.96 0.98 1.01 1.03 1.05 1.07 1.09 1.11 1.13 1.15 1.17 1.19 1.21 1.23
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) dynamically balanced
108
Pulleys
0.32 0.44 0.67 1.31 0.02 0.05 0.07 0.09 0.12 0.14 0.16 0.18 0.21 0.23 0.25 0.28 0.30 0.32 0.35 0.37 0.39 0.42 0.44 0.46 0.48 0.51 0.53 0.55 0.58 0.60 0.62 0.65 0.67 0.69 0.71 0.74 0.76 0.78 0.81 0.83 0.85 0.88 0.90 0.92 0.95 0.97 0.99 1.01 1.04 1.06 1.08 1.11 1.13 1.15 1.18 1.20 1.22 1.25 1.27 1.29 1.31 1.34 1.36 1.38
Technical Manual V-Belts
Power Ratings optibelt VB section 25 Nominal Power Rating PN (kW) for
= 180째 and Ld = 4561 mm
Statically balanced
v (m/s)
Pulleys
Table 53 nk
Datum diameter of small pulley ddk (mm)
(min-1)
224
236
250
280
315
355
400
450
500
560
700 950 1450 2850 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500
5.68 6.86 8.15
6.47 7.86 9.43
7.38 9.00 10.88
9.28 11.38 13.78
11.45 14.03 16.81
13.84 16.90 19.77
16.43 19.91 22.40
19.16 22.94
21.74 25.63
24.62 28.37
0.71 1.26 1.76 2.22 2.65 3.06 3.44 3.81 4.16 4.49 4.81 5.12 5.41 5.68 5.95 6.20 6.43 6.65 6.86 7.06 7.24 7.40 7.55 7.69 7.81 7.92 8.02 8.09 8.15 8.20 8.23 8.24 8.24 8.22 8.18 8.12 8.04 7.95 7.84 7.70 7.55 7.38 7.19 6.97 6.74 6.48 6.21 5.91 5.58 5.24
0.78 1.40 1.96 2.48 2.97 3.43 3.88 4.30 4.70 5.09 5.45 5.81 6.15 6.47 6.78 7.07 7.35 7.61 7.86 8.09 8.30 8.50 8.69 8.85 9.00 9.14 9.25 9.35 9.43 9.50 9.54 9.57 9.57 9.56 9.52 9.47 9.39 9.29 9.17 9.03 8.87 8.68 8.47 8.23 7.97 7.69 7.38 7.04 6.68 6.29
0.87 1.56 2.20 2.79 3.34 3.87 4.38 4.86 5.33 5.77 6.20 6.61 7.00 7.38 7.73 8.08 8.40 8.71 9.00 9.27 9.52 9.76 9.98 10.18 10.36 10.52 10.66 10.78 10.88 10.96 11.01 11.05 11.06 11.04 11.01 10.95 10.87 10.76 10.62 10.46 10.27 10.06 9.82 9.55 9.25 8.92 8.56 8.17 7.75 7.30
1.05 1.91 2.69 3.43 4.13 4.80 5.44 6.06 6.65 7.22 7.77 8.29 8.80 9.28 9.75 10.19 10.61 11.00 11.38 11.73 12.06 12.36 12.64 12.90 13.13 13.33 13.51 13.66 13.78 13.87 13.93 13.97 13.97 13.94 13.88 13.79 13.66 13.50 13.30 13.07 12.80 12.49 12.15 11.76 11.34
1.26 2.31 3.27 4.18 5.04 5.87 6.67 7.43 8.17 8.88 9.56 10.22 10.85 11.45 12.02 12.57 13.09 13.57 14.03 14.46 14.86 15.22 15.56 15.86 16.12 16.35 16.54 16.69 16.81 16.89 16.92 16.92 16.87 16.78 16.64 16.46 16.23 15.95 15.63 15.25
1.50 2.76 3.92 5.02 6.07 7.08 8.05 8.98 9.87 10.74 11.56 12.36 13.12 13.84 14.53 15.18 15.79 16.37 16.90 17.40 17.85 18.26 18.62 18.93 19.20 19.42 19.59 19.71 19.77 19.78 19.73 19.63 19.46 19.24 18.95
1.76 3.26 4.64 5.96 7.21 8.41 9.57 10.68 11.75 12.77 13.75 14.69 15.58 16.43 17.22 17.97 18.67 19.31 19.91 20.44 20.92 21.33 21.69 21.98 22.20 22.36 22.45 22.46 22.40 22.26
2.06 3.81 5.44 6.98 8.46 9.87 11.23 12.53 13.78 14.97 16.11 17.18 18.20 19.16 20.05 20.88 21.64 22.33 22.94 23.48 23.93 24.31 24.60 24.80 24.90 24.92 24.83 24.65 24.36 23.96
2.35 4.35 6.22 7.99 9.69 11.30 12.86 14.34 15.75 17.10 18.37 19.57 20.70 21.74 22.70 23.57 24.35 25.04 25.63 26.12 26.50 26.77 26.92 26.96 26.87
2.69 5.00 7.15 9.19 11.14 12.99 14.76 16.45 18.05 19.56 20.97 22.29 23.51 24.62 25.61 26.49 27.25 27.88 28.37 28.72 28.93 28.99 28.88 28.62 28.18
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.12 0.16 0.25 0.49 0.01 0.02 0.03 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.29 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.42 0.43
0.61 0.82 1.26 2.47 0.04 0.09 0.13 0.17 0.22 0.26 0.30 0.35 0.39 0.43 0.48 0.52 0.56 0.61 0.65 0.69 0.74 0.78 0.82 0.87 0.91 0.95 1.00 1.04 1.08 1.13 1.17 1.21 1.26 1.30 1.34 1.39 1.43 1.47 1.52 1.56 1.60 1.65 1.69 1.73 1.78 1.82 1.86 1.91 1.95 1.99 2.04 2.08 2.12 2.17
0.97 1.32 2.01 3.95 0.07 0.14 0.21 0.28 0.35 0.42 0.49 0.55 0.62 0.69 0.76 0.83 0.90 0.97 1.04 1.11 1.18 1.25 1.32 1.39 1.46 1.53 1.60 1.66 1.73 1.80 1.87 1.94 2.01 2.08 2.15 2.22 2.29 2.36 2.43 2.50 2.57 2.64 2.70 2.77 2.84 2.91 2.98 3.05 3.12 3.19 3.26 3.33 3.40 3.47
1.09 1.48 2.26 4.44 0.08 0.16 0.23 0.31 0.39 0.47 0.55 0.62 0.70 0.78 0.86 0.94 1.01 1.09 1.17 1.25 1.33 1.40 1.48 1.56 1.64 1.72 1.79 1.87 1.95 2.03 2.10 2.18 2.26 2.34 2.42 2.49 2.57 2.65 2.73 2.81 2.88 2.96 3.04 3.12 3.20 3.27 3.35 3.43 3.51 3.59 3.66 3.74 3.82 3.90
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
109
Technical Manual V-Belts
Power Ratings optibelt VB section D/32 Nominal Power Rating PN (kW) for
= 180째 and Ld = 6375 mm
Statically balanced
v (m/s)
Pulleys
Table 54 nk
Datum diameter of small pulley ddk (mm)
(min-1)
315
355
375
400
425
450
500
560
630
670
710
750
800
900
700 950 1450 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780 800 820 840 860 880 900 920 940 960 980 1000 1020 1040 1060 1080 1100 1120 1140 1160 1180 1200 1220 1240 1260 1280 1300 1320 1340 1360 1380 1400
15.30 18.50 21.43 0.80 1.46 2.08 2.66 3.22 3.76 4.28 4.79 5.29 5.77 6.24 6.70 7.16 7.60 8.04 8.47 8.89 9.30 9.71 10.11 10.50 10.88 11.26 11.63 12.00 12.36 12.71 13.06 13.40 13.73 14.06 14.38 14.69 15.00 15.30 15.59 15.88 16.16 16.44 16.71 16.97 17.22 17.47 17.71 17.95 18.18 18.40 18.61 18.82 19.02 19.21 19.39 19.57 19.74 19.90 20.06 20.20 20.34 20.47 20.60 20.71 20.82 20.92 21.01 21.09 21.16 21.23 21.29 21.34 21.37
19.17 23.20 26.56 0.96 1.77 2.53 3.25 3.94 4.61 5.26 5.89 6.51 7.11 7.71 8.29 8.86 9.42 9.97 10.51 11.04 11.56 12.07 12.58 13.08 13.56 14.04 14.52 14.98 15.44 15.88 16.32 16.75 17.18 17.59 18.00 18.40 18.79 19.17 19.54 19.90 20.26 20.61 20.95 21.28 21.60 21.91 22.21 22.51 22.79 23.07 23.33 23.59 23.83 24.07 24.30 24.51 24.72 24.92 25.10 25.28 25.44 25.59 25.74 25.87 25.99 26.10 26.20 26.28 26.36 26.42 26.47 26.51 26.54
21.05 25.45 28.81 1.04 1.93 2.75 3.54 4.29 5.03 5.74 6.43 7.11 7.78 8.43 9.07 9.70 10.31 10.92 11.51 12.10 12.68 13.24 13.80 14.35 14.89 15.41 15.93 16.45 16.95 17.44 17.92 18.40 18.86 19.32 19.77 20.20 20.63 21.05 21.46 21.86 22.25 22.63 23.00 23.36 23.71 24.05 24.38 24.70 25.00 25.30 25.59 25.86 26.13 26.38 26.62 26.85 27.07 27.27 27.47 27.65 27.82 27.98 28.12 28.25 28.37 28.48 28.57 28.65 28.72 28.77 28.81 28.83 28.84
23.36 28.15 31.31 1.14 2.12 3.03 3.90 4.74 5.55 6.34 7.11 7.87 8.61 9.33 10.04 10.74 11.43 12.10 12.77 13.42 14.06 14.69 15.31 15.92 16.52 17.11 17.69 18.25 18.81 19.36 19.90 20.42 20.94 21.45 21.94 22.43 22.90 23.36 23.81 24.25 24.68 25.10 25.50 25.90 26.28 26.65 27.00 27.35 27.68 28.00 28.31 28.60 28.88 29.15 29.40 29.64 29.87 30.08 30.28 30.46 30.63 30.78 30.92 31.04 31.15 31.24 31.32 31.38 31.43 31.45 31.47 31.46 31.44
25.62 30.75 33.45 1.24 2.31 3.31 4.26 5.18 6.07 6.94 7.78 8.61 9.43 10.22 11.01 11.78 12.53 13.27 14.00 14.72 15.43 16.12 16.80 17.47 18.13 18.78 19.42 20.04 20.65 21.25 21.84 22.42 22.98 23.53 24.07 24.60 25.11 25.62 26.11 26.58 27.04 27.49 27.93 28.35 28.76 29.16 29.54 29.90 30.25 30.59 30.91 31.21 31.50 31.78 32.04 32.28 32.50 32.71 32.91 33.08 33.24 33.38 33.50 33.61 33.69 33.76 33.81 33.84 33.86 33.85 33.82 33.78 33.71
27.82 33.23 35.22 1.34 2.50 3.58 4.61 5.61 6.58 7.53 8.45 9.36 10.24 11.11 11.97 12.80 13.63 14.44 15.23 16.01 16.78 17.54 18.28 19.01 19.73 20.43 21.12 21.80 22.46 23.11 23.75 24.37 24.98 25.58 26.16 26.73 27.28 27.82 28.34 28.85 29.34 29.82 30.28 30.73 31.16 31.57 31.97 32.35 32.71 33.06 33.39 33.70 33.99 34.26 34.52 34.76 34.97 35.17 35.35 35.51 35.65 35.77 35.86 35.94 35.99 36.03 36.04 36.03 36.00 35.94 35.86 35.76 35.64
32.05 37.80
36.82 42.59
41.91 47.12
44.59
47.08
49.38
51.98
56.17
1.54 2.87 4.13 5.32 6.48 7.61 8.71 9.78 10.83 11.86 12.87 13.86 14.84 15.79 16.73 17.66 18.56 19.46 20.33 21.19 22.03 22.86 23.67 24.46 25.24 26.00 26.74 27.47 28.18 28.87 29.54 30.20 30.83 31.45 32.05 32.63 33.19 33.73 34.25 34.75 35.23 35.68 36.12 36.53 36.92 37.29 37.64 37.96 38.26 38.53 38.78 39.01 39.21 39.38 39.53 39.66 39.75 39.82 39.86 39.87 39.86 39.82 39.74 39.64 39.51
1.78 3.32 4.77 6.17 7.51 8.82 10.10 11.35 12.57 13.77 14.95 16.10 17.24 18.35 19.44 20.51 21.56 22.59 23.60 24.59 25.56 26.51 27.44 28.34 29.23 30.09 30.93 31.75 32.55 33.32 34.07 34.79 35.49 36.17 36.82 37.44 38.04 38.61 39.15 39.66 40.15 40.61 41.04 41.44 41.81 42.14 42.45 42.72 42.97 43.18 43.35 43.49 43.60 43.67 43.71 43.71 43.67 43.60 43.49 43.34
2.05 3.84 5.52 7.14 8.70 10.23 11.71 13.16 14.58 15.97 17.34 18.68 19.99 21.27 22.53 23.77 24.97 26.16 27.31 28.44 29.55 30.62 31.67 32.69 33.69 34.65 35.58 36.49 37.36 38.20 39.01 39.79 40.53 41.24 41.91 42.55 43.16 43.72 44.25 44.74 45.19 45.60 45.97 46.30 46.59 46.84 47.04 47.19 47.31 47.37 47.39 47.36 47.29 47.16 46.99
2.21 4.13 5.95 7.69 9.38 11.02 12.62 14.19 15.72 17.22 18.69 20.12 21.53 22.91 24.27 25.59 26.88 28.15 29.38 30.59 31.76 32.90 34.01 35.09 36.13 37.14 38.12 39.06 39.96 40.83 41.66 42.45 43.20 43.92 44.59 45.22 45.80 46.35 46.84 47.30 47.70 48.06 48.38 48.64 48.85 49.01 49.12 49.18 49.18 49.13
2.36 4.42 6.37 8.24 10.05 11.81 13.52 15.20 16.84 18.45 20.02 21.56 23.06 24.54 25.98 27.39 28.76 30.10 31.41 32.68 33.92 35.12 36.29 37.41 38.50 39.55 40.56 41.53 42.46 43.34 44.18 44.98 45.72 46.43 47.08 47.68 48.24 48.74 49.19 49.59 49.94 50.22 50.46 50.63 50.74
2.51 4.71 6.79 8.78 10.71 12.59 14.42 16.21 17.96 19.67 21.34 22.98 24.58 26.14 27.67 29.16 30.61 32.02 33.40 34.74 36.03 37.29 38.50 39.67 40.80 41.88 42.91 43.90 44.84 45.73 46.56 47.35 48.08 48.76 49.38 49.95 50.45 50.90 51.29 51.61 51.87 52.07 52.20 52.26 52.25
2.71 5.07 7.31 9.46 11.54 13.56 15.53 17.46 19.34 21.18 22.97 24.73 26.44 28.11 29.74 31.33 32.87 34.37 35.83 37.24 38.60 39.91 41.18 42.39 43.55 44.66 45.71 46.71 47.64 48.52 49.34 50.10 50.79 51.42 51.98 52.47 52.89 53.24 53.52 53.73
3.08 5.79 8.34 10.80 13.18 15.49 17.73 19.93 22.06 24.15 26.18 28.16 30.09 31.96 33.78 35.55 37.26 38.90 40.49 42.02 43.48 44.88 46.21 47.47 48.66 49.78 50.82 51.78 52.67 53.47 54.19 54.82 55.36 55.81 56.17 56.44 56.61 56.67 56.64 56.50
VB
Where v > 30 m/s, please consult our Applications Engineering Department
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.23 0.31 0.47 0.01 0.01 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.10 0.10 0.11 0.12 0.12 0.13 0.14 0.14 0.15 0.16 0.16 0.17 0.18 0.18 0.19 0.19 0.20 0.21 0.21 0.22 0.23 0.23 0.24 0.25 0.25 0.26 0.27 0.27 0.28 0.29 0.29 0.30 0.31 0.31 0.32 0.32 0.33 0.34 0.34 0.35 0.36 0.36 0.37 0.38 0.38 0.39 0.40 0.40 0.41 0.42 0.42 0.43 0.44 0.44 0.45 0.45
1.14 1.54 2.36 0.03 0.06 0.10 0.13 0.16 0.19 0.23 0.26 0.29 0.32 0.36 0.39 0.42 0.45 0.49 0.52 0.55 0.58 0.62 0.65 0.68 0.71 0.75 0.78 0.81 0.84 0.88 0.91 0.94 0.97 1.01 1.04 1.07 1.10 1.14 1.17 1.20 1.23 1.27 1.30 1.33 1.36 1.40 1.43 1.46 1.49 1.53 1.56 1.59 1.62 1.66 1.69 1.72 1.75 1.79 1.82 1.85 1.88 1.92 1.95 1.98 2.01 2.05 2.08 2.11 2.14 2.18 2.21 2.24 2.27
1.82 2.47 3.77 0.05 0.10 0.16 0.21 0.26 0.31 0.36 0.42 0.47 0.52 0.57 0.62 0.68 0.73 0.78 0.83 0.88 0.94 0.99 1.04 1.09 1.14 1.20 1.25 1.30 1.35 1.40 1.46 1.51 1.56 1.61 1.66 1.72 1.77 1.82 1.87 1.92 1.98 2.03 2.08 2.13 2.18 2.24 2.29 2.34 2.39 2.44 2.50 2.55 2.60 2.65 2.70 2.76 2.81 2.86 2.91 2.96 3.02 3.07 3.12 3.17 3.22 3.28 3.33 3.38 3.43 3.48 3.53 3.59 3.64
v (m/s) Dynamically balanced (for details see DIN 2211)
110
Pulleys
2.05 2.78 4.24 0.06 0.12 0.18 0.23 0.29 0.35 0.41 0.47 0.53 0.58 0.64 0.70 0.76 0.82 0.88 0.94 0.99 1.05 1.11 1.17 1.23 1.29 1.34 1.40 1.46 1.52 1.58 1.64 1.69 1.75 1.81 1.87 1.93 1.99 2.05 2.10 2.16 2.22 2.28 2.34 2.40 2.45 2.51 2.57 2.63 2.69 2.75 2.81 2.86 2.92 2.98 3.04 3.10 3.16 3.21 3.27 3.33 3.39 3.45 3.51 3.56 3.62 3.68 3.74 3.80 3.86 3.92 3.97 4.03 4.09
Technical Manual V-Belts
Power Ratings optibelt VB section E/40 Nominal Power Rating PN (kW) for
= 180째 and Ld = 7180 mm
Statically balanced
v (m/s)
Pulleys
Table 55 nk
Datum diameter of small pulley ddk (mm)
(min-1)
450
500
560
630
670
710
750
800
850
900
950
1000
700 950 1450 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780 800 820 840 860 880 900 920 940 960 980 1000 1020 1040 1060 1080 1100 1120 1140 1160 1180 1200 1220 1240 1260 1280 1300
26.44 29.78
31.70 35.30
37.57 40.95
43.78 46.07
47.00
49.97
52.68
55.67
58.21
60.27
61.83
62.87
1.47 2.70 3.83 4.90 5.92 6.91 7.87 8.80 9.70 10.58 11.43 12.27 13.08 13.88 14.66 15.42 16.16 16.88 17.59 18.28 18.95 19.60 20.24 20.86 21.46 22.04 22.61 23.15 23.68 24.19 24.68 25.15 25.60 26.03 26.44 26.84 27.21 27.56 27.89 28.19 28.48 28.74 28.98 29.20 29.39 29.57 29.71 29.84 29.93 30.01 30.06 30.08 30.07 30.04 29.99 29.90 29.79 29.65 29.48 29.29 29.06 28.80 28.52 28.20 27.86
1.72 3.17 4.52 5.80 7.03 8.21 9.36 10.48 11.57 12.63 13.66 14.67 15.66 16.62 17.56 18.48 19.38 20.26 21.11 21.94 22.76 23.54 24.31 25.06 25.78 26.48 27.16 27.81 28.44 29.04 29.63 30.18 30.71 31.22 31.70 32.15 32.57 32.97 33.34 33.68 34.00 34.28 34.54 34.76 34.95 35.11 35.24 35.34 35.41 35.44 35.44 35.40 35.33 35.22 35.08 34.90 34.68 34.43 34.14 33.81 33.44 33.03 32.58 32.09 31.55
2.02 3.74 5.34 6.87 8.34 9.76 11.13 12.47 13.78 15.05 16.29 17.51 18.69 19.85 20.98 22.09 23.16 24.21 25.23 26.23 27.19 28.13 29.04 29.92 30.78 31.60 32.39 33.15 33.88 34.58 35.24 35.88 36.47 37.04 37.57 38.06 38.52 38.94 39.32 39.66 39.97 40.23 40.46 40.64 40.78 40.88 40.94 40.95 40.91 40.83 40.71 40.53 40.31 40.04 39.72 39.35 38.93 38.46 37.93 37.36
2.37 4.40 6.29 8.10 9.85 11.53 13.17 14.77 16.32 17.84 19.32 20.76 22.17 23.54 24.88 26.19 27.46 28.70 29.90 31.06 32.19 33.29 34.34 35.36 36.33 37.27 38.17 39.03 39.84 40.61 41.34 42.02 42.65 43.24 43.78 44.27 44.71 45.10 45.44 45.73 45.96 46.13 46.25 46.32 46.32 46.27 46.15 45.98 45.74 45.43 45.07 44.63 44.13 43.56 42.93
2.57 4.77 6.83 8.80 10.70 12.54 14.33 16.06 17.76 19.41 21.02 22.59 24.12 25.62 27.07 28.49 29.86 31.20 32.49 33.75 34.96 36.13 37.26 38.34 39.37 40.36 41.31 42.20 43.04 43.84 44.58 45.27 45.90 46.48 47.00 47.47 47.87 48.22 48.50 48.72 48.87 48.96 48.99 48.94 48.83
2.76 5.14 7.37 9.50 11.55 13.54 15.47 17.35 19.18 20.97 22.71 24.40 26.05 27.66 29.23 30.75 32.22 33.65 35.04 36.37 37.66 38.90 40.09 41.23 42.31 43.34 44.32 45.24 46.10 46.90 47.64 48.32 48.94 49.49 49.97 50.39 50.73 51.01 51.21 51.34 51.40 51.38 51.27 51.09 50.83
2.96 5.51 7.90 10.19 12.40 14.53 16.61 18.63 20.59 22.51 24.37 26.19 27.96 29.68 31.35 32.97 34.54 36.06 37.52 38.93 40.29 41.59 42.83 44.02 45.14 46.20 47.20 48.13 48.99 49.79 50.51 51.17 51.75 52.25 52.68 53.02 53.29 53.47 53.57 53.59
3.20 5.97 8.57 11.05 13.44 15.77 18.02 20.21 22.34 24.42 26.44 28.40 30.31 32.16 33.96 35.70 37.38 39.00 40.55 42.05 43.48 44.84 46.14 47.37 48.52 49.60 50.60 51.53 52.38 53.14 53.83 54.42 54.93 55.34 55.67 55.90 56.03 56.06 55.99 55.82
3.44 6.42 9.22 11.90 14.49 16.99 19.42 21.78 24.07 26.30 28.47 30.58 32.62 34.60 36.52 38.37 40.15 41.86 43.50 45.06 46.55 47.97 49.30 50.55 51.72 52.80 53.79 54.69 55.50 56.21 56.81 57.32 57.72 58.02 58.21
3.68 6.88 9.88 12.75 15.52 18.20 20.80 23.33 25.79 28.17 30.48 32.73 34.90 37.00 39.02 40.97 42.85 44.64 46.35 47.97 49.51 50.96 52.31 53.57 54.73 55.79 56.75 57.60 58.33 58.96 59.46 59.85 60.12 60.26 60.27
3.92 7.33 10.53 13.60 16.55 19.41 22.18 24.87 27.48 30.01 32.47 34.84 37.14 39.35 41.48 43.52 45.48 47.34 49.10 50.77 52.34 53.81 55.17 56.42 57.55 58.57 59.46 60.23 60.87 61.39 61.76 62.00 62.09 62.04 61.83
4.16 7.78 11.18 14.43 17.57 20.60 23.54 26.39 29.16 31.83 34.42 36.93 39.34 41.66 43.88 46.01 48.03 49.95 51.76 53.47 55.05 56.52 57.86 59.08 60.16 61.11 61.92 62.59 63.11 63.48
VB
Additional power (kW) per belt for speed ratio i 1.01 1.06 1.27 > 1.57 to to to 1.05 1.26 1.57 0.38 0.52 0.79 0.01 0.02 0.03 0.04 0.05 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.60 0.61 0.62 0.64 0.65 0.66 0.67 0.68 0.69 0.70 0.71
1.92 2.60 3.97 0.05 0.11 0.16 0.22 0.27 0.33 0.38 0.44 0.49 0.55 0.60 0.66 0.71 0.77 0.82 0.88 0.93 0.99 1.04 1.09 1.15 1.20 1.26 1.31 1.37 1.42 1.48 1.53 1.59 1.64 1.70 1.75 1.81 1.86 1.92 1.97 2.03 2.08 2.14 2.19 2.24 2.30 2.35 2.41 2.46 2.52 2.57 2.63 2.68 2.74 2.79 2.85 2.90 2.96 3.01 3.07 3.12 3.18 3.23 3.28 3.34 3.39 3.45 3.50 3.56
3.07 4.16 6.35 0.09 0.18 0.26 0.35 0.44 0.53 0.61 0.70 0.79 0.88 0.96 1.05 1.14 1.23 1.31 1.40 1.49 1.58 1.66 1.75 1.84 1.93 2.02 2.10 2.19 2.28 2.37 2.45 2.54 2.63 2.72 2.80 2.89 2.98 3.07 3.15 3.24 3.33 3.42 3.50 3.59 3.68 3.77 3.86 3.94 4.03 4.12 4.21 4.29 4.38 4.47 4.56 4.64 4.73 4.82 4.91 4.99 5.08 5.17 5.26 5.34 5.43 5.52 5.61 5.70
3.45 4.68 7.14 0.10 0.20 0.30 0.39 0.49 0.59 0.69 0.79 0.89 0.98 1.08 1.18 1.28 1.38 1.48 1.58 1.67 1.77 1.87 1.97 2.07 2.17 2.27 2.36 2.46 2.56 2.66 2.76 2.86 2.95 3.05 3.15 3.25 3.35 3.45 3.55 3.64 3.74 3.84 3.94 4.04 4.14 4.24 4.33 4.43 4.53 4.63 4.73 4.83 4.92 5.02 5.12 5.22 5.32 5.42 5.52 5.61 5.71 5.81 5.91 6.01 6.11 6.21 6.30 6.40
Where v > 30 m/s, please consult our Applications Engineering Department v (m/s) Dynamically balanced (for details see DIN 2211)
Pulleys
111
Technical Manual V-Belts
Special Drives V-Flat Drives
The V-flat drive comprises one grooved pulley and one flat pulley. This type of power transmission can, under certain conditions, be used for drives with intermittent loading or with a large moment of inertia. As flywheels or flat pulleys are often already present, the
costs of the drive can be reduced. When converting a flat belt drive to a V-flat drive, it will usually be economic to continue to use the flat pulley. a b bu b2 Da DZ
= = = = = =
da dd Fl f
= = = =
h i Lath Ldth pf P Sn α
= = = = = = = =
kf
=
drive centre distance face width of the flat pulley bottom width of the belt face width of the grooved pulley outside diameter of the flat pulley correction factor for determination of the theoretical diameter outside diameter of the grooved pulley datum diameter of the grooved pulley area of the V-belt on the flat pulley correction factor for calculating the face width of the flat pulley height of crown per 100 mm pulley face width speed ratio calculated outside length of the kraftband calculated datum length of the V-belt specific surface pressure power to be transmitted by the belt drive circumferential force arc of contact on the flat pulley = 360° – β factor Datum length Ld
dd
Da a
112
pitch length Lw
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (cm2) (mm) (mm) (mm) (mm) (N/cm2) (kW) (N) (°)
Technical Manual V-Belts
Special Drives V-Flat Drives
Calculating V-Flat Drives
Table 56: Arc of contact factor c1 (for V-flat belt drives only)
The calculation of a V-flat drive uses the same method as the one set out on pages 79 to 81. In order to ensure reliability and efficiency, the V-flat belt drive must fulfil the following requirements:
kf =
● When using single belts, only classical V-belts sections Z/10, A/13, B/17, C/22, D/32, E/40 must be used. ● Wedge belts must never be used as their narrow base and larger relative height tends to make them turn on their sides and twist. ● All Optibelt KB Kraftbands – both with wedge belts or classical V-belts – are particularly suitable for this type of drive due to their single-belt-characteristic. Turning over even under extreme shock load conditions is prevented. ● V-flat drives are particularly economical when
Da – dd a
lies between 0.5 and 1.15
The ideal drive dimensioning is achieved when kf = 0.85. If the kf-factor falls outside the recommended range, it is more economic to specify a normal V-belt drive. ● The following recommendations are made based on the above requirements:
Classiscal V-belt Ratio Drive centre distance
kf-factor
i=
Da + DZ ≥3 dd azul ≥ Da
Kraftbands i=
Da + DZ ≥3 da azul ≥ Da
a=
Da – dd 0.85
a=
Da – da 0.85
kf =
Da – dd a
kf =
Da – da a
0.5 ≤ kfzul ≤ 1.15
● When calculating the number of belts and the belt tension, it should be noted that a special arc of contact factor c1 must be used as shown in the following table.
=
0 0.07 0.15 0.22 0.29 0.35 0.40 0.45 0.50 0.57 0.64 0.70 0.75 0.80 0.85 0.92 1.00 1.07 1.15 1.21 1.30 1.36 1.45
● The V-grooved pulley must always be the small pulley.
kf =
Da – dd a
c1
180° 176° 170° 167° 163° 163° 156° 153° 150° 146° 143° 140° 137° 134° 130° 125° 120° 115° 110° 106° 100° 96° 90°
0.75 0.76 0.77 0.79 0.79 0.79 0.81 0.81 0.82 0.83 0.84 0.85 0.85 0.86 0.86 0.84 0.82 0.80 0.78 0.77 0.73 0.72 0.70
● For classical V-belts, the length is calculated using the datum length Ld and for kraftbands using the outside length La. Therefore, the correction factor Dz must be added to the outside diameter of the flat pulley in order to arrive at the theoretical design diameter. Correction Factor DZ for Determination of the Theoretical Design Diameter Classical V-belts Section
Z/10
A/13
B/17
C/22
D/32
E/40
DZ mm
7
10
13
18
23
25
Kraftbands Section 3V/ 5V/ 8V/ SPZ SPA SPB SPC A/ B/ C/ D/ 9J 15J 25J HA HB HC HD DZ mm
13
23
41 12
15
19
26
12
20 24
35
Calculating the Datum Length for Classical V-Belts Ldth ≈ 2a + 1.57 (dd + Da + DZ) +
(Da + DZ – dd)2 4a
Calculating the Outside Length for Kraftbands Lath ≈ 2a + 1.57 (da + Da + DZ) +
(Da + DZ – da)2 4a
Length conversion factors are given on pages 147/148. Datum length Ld pitch length Lw
113
Technical Manual V-Belts
Special Drives V-Flat Drives
● The flat pulley should be cylindrical in shape. With existing flat pulleys that are to be re-used for a V-flat belt drive, the height of the crown should be checked.
The following conditions must be met: Maximum Crown Height hmax = 1 mm per 100 mm pulley face width h=
Da – da 2
(h < hmax)
In addition, the pulley face width must be calculated or checked as shown in the following example: 6 grooves B/17 850 mm
Solution: b = b2 + f b = 120 + 35 = 155 mm
da
Da
Given/calculated: V-grooved pulley Section Drive centre distance a
b2 for classical V-belts, page 42 table 9. b2 for kraftbands, page 46 table15. f from table 57. Choose a standard flat pulley with face width b = 160 mm. Table 57: Factor f for determining the face width of the flat pulley Z/10, SPZ, A/13/HA, 3V/9J
SPB 5V/15J
C/22/HC, SPC
D/32/HD, 8V/25J
E/40
a
f
a
f
a
f
a
f
a
f
< 500
20
< 750
25
< 1000
30
< 1250
40
< 1750
45
500-750
25
750-1000
35
1000-1250
40
1250-1750
50
1750-2250
60
> 750
30
> 1000
40
> 1250
50
> 1750
65
> 2250
75
Calculation of the Specific Surface Pressure on the Flat Pulley Calculation of the effective belt tension Sn (N) Sn =
P · 1000 v
Area of belt contact on flat pulley Fl (cm2) Fl =
Da · π · α · bu · z 36 000
Surface pressure on flat pulley pf (N/cm2)* pf =
Sn Fl
Recommended surface pressure pf (N/cm2)* pf ≤ 4 N/cm2* * 10 N/cm2 = 1 Bar = 105 Pascal
Formula: Calculating the static belt tension for V-flat belt drives T (N) T= 114
500 · (2.25 – c1) · PB + k · v2 c1 · z · v
In addition to the calculation method set out on pages 79 to 81, the static belt tension for V-flat belt drives must be calculated according to the formulae shown here.
Technical Manual V-Belts
Special Drives Tension/Guide Idlers
Idlers are grooved or flat pulleys that do not transmit any power in a drive system. As they also generate additional bending stresses in the belt, they should be employed sparingly and, where possible, confined to the following situations:
Idler Configuration
● with fixed drive centres, in order to produce the required tension and to take up the maximum possible belt stretch and wear,
Unless design requirements call for an outside idler, the inside idler is usually more advantageous. Its diameter can be kept smaller than that of the outside idler.
● as damping and guide idlers on very long, unsupported spans. Belts on such drives tend to vibrate more than normal and even to turn over in the pulley grooves, ● as outside idlers where the arc of contact on one of the loaded pulleys is too low. Their inclusion increases the arc of contact and often reduces excessive slip or eliminates the need to increase the number of belts, ● as guide idlers on drives where the pulleys are not all on the same plane such as quarter turn drives,
In principle, idlers can be used internally or externally depending upon the drive situation.
Depending upon the type of belt, inside idlers can either take the form of a grooved or flat pulley. Table 58: Section dimensions Belt type
Grooved pulley
Flat pulley
High performance wedge belts BS 3790/DIN 7753 Part 1 SPZ; SPA; SPB; SPC
●
High performance wedge belts USA Standard RMA/MPTA 3V/9N; 5V/15N; 8V/25N
●
Classical V-belts BS 3790/DIN 2215 Z/10; A/13; B/17; 20; C/22; 25; D/32; E/40
●
●
If, for the reasons listed above, it is absolutely essential to employ idlers, the following criteria must be observed when designing the drive:
Kraftbands with high-performance wedge belts 3V/9J; 5V/15J; 8V/25J; SPA; SPZ; SPB; SPC
●
●
● idler configuration,
Kraftbands with classical V-belts A/HA; B/HB; C/HC; D/HD
●
●
● to guide belts past obstructions, ● as pneumatically, hydraulically or spring loaded idlers to maintain an even, constant tension, ● as clutching idlers with which the driven pulley can be engaged or disengaged. Complex clutches are no longer required. Because of their single belt characteristics, Optibelt KB Kraftbands are particularly suited to these applications.
● position of the idler in the belt span, ● idler diameter, ● idler shape, ● allowance for idler travel for fitting and for initial and subsequent tensioning of the belt, ● correction of the power rating PN.
For raw edge V-belts and kraftbands the same requirements as in table 58 are valid. Inside idlers reduce the arc of contact on the loaded pulleys and with it the arc of contact correction factor c1. When calculating the number of belts, the arc of contact correction factor should be selected for the position of the idler at the point of maximum belt stretch (see Table 60, page 117). Outside idlers must always take the form of flat pulleys as they run on the back of the belt. They increase the arc of contact. Care must be taken to ensure however that the maximum possible belt stretch is taken up and that contact with the opposite span is prevented. The reverse bending caused when outside idlers are used can lead to a reduction of the belt service life. Special V-belt constructions upon request!
115
Technical Manual V-Belts
Special Drives Tension/Guide Idlers
Position of the Idler in the Belt Span
Fig. 3
Theoretical power transmission formulae and indeed practice has shown that idlers should, wherever possible, be placed in the slack side of the drive. The tension idler force can then be very significantly reduced. A spring loaded idler must not be employed in a reversing drive as the slack and tight sides of the drive are constantly changing.
flat pulley ck sla
e sid
Our Applications Engineering Department will be pleased to assist in the design where spring loaded idlers present special problems. tight side
Fig. 1
slack side
as far as possible
On drives with long belt spans grooved pulleys are the preferred choice for inside idlers because with flat pulleys transverse vibrations and belt turnover can occur. Minimum Diameter for Inside Idlers Inside idler ≥ smallest loaded pulley in the drive system or smallest permissible pulley diameter for the section used.
tight side
Minimum Diameter for Outside Idlers Outside idler ≥ 1.35 times the smallest loaded pulley in the drive system
Grooved pulleys can be used as inside idlers anywhere on the slack side. Where possible, however, the arc of contact should be the same on both pulleys when the idler reaches its limit position, i.e. belt stretch is at its maximum.
Fig. 2
Exceptions: Section
Minimum diameter of the outside idler (mm)
Z/10
56-63
90
A/13
71-90
125
SPZ, 3V/9N
63-90
125
90-112
150
SPA
e
Diameter of the smallest loaded pulley in the drive (mm)
sid ck sla
tight side
Flat pulleys, whether used as inside or outside idlers, are to be placed as far as possible away from the grooved pulley on to which the belt runs next. Any alignment errors between the idler and the pulley and the resultant sideways movement of the belt on the pulley are thus avoided.
116
The belt service life is significantly reduced if the minimum recommended idler diameter is less than the size recommended. The use of an Optibelt special construction can significantly improve service life. Idler Design Grooved pulleys which are used as idlers can normally have standard groove dimensions. On drives subject to severe vibration and with long drive centre distances, it is recommended that deep grooved pulleys be employed. Flat pulleys should, where possible, be cylindrical and not crowned. Flanged pulleys are recommended as belt guides. The corners formed by the contact surface and pulley flange should be sharp. Round edges encourage the belt to run up on the flanges causing turn over.
Technical Manual V-Belts
Special Drives Tension/Guide Idlers
The face width or the contact surface between the two flanges is calculated as follows: b = b2 + m b = face width / contact surface b2 = face width of the grooved pulley m = additional value Section
(mm) (mm) (mm)
Additional value m (mm)
SPZ, 3V/9N, Z/10 SPA, A/13 SPB, 5V/15N, B/17 SPC, C/22 8V/25N D/32 E/40
15 20 25 30 35 40 45
also applies for raw edge V-belts Drive Calculation Calculating the length and determining the number of belts is basically the same as for two pulley drives. Certain details are, however, to be noted: 1. Calculate the belt length over two pulleys using the formula: see notes on standards page 67, 143/144. Ldth ≈ 2a + 1.57 (ddg + ddk) +
The application of idlers increases the bending stress in the belts. To avoid a reduction in belt service life, the idler correction factor c4 must also be included in the calculation. This correction factor takes the number of idlers into consideration whilst maintaining the minimum diameter. Table 59 Number of idlers
c4
0 1 2 3
1.00 0.91 0.86 0.81
The nominal power rating PN per belt is, as before, based on the smallest loaded pulley. Calculation of the arc of contact correction factor c1 must be based on the smallest contact angle of the loaded pulley which occurs when the belt is stretched to its maximum limit. Table 60: Arc of contact correction factor c1 =
c1
75° 80° 85° 90° 95°
0.82 0.84 0.86 0.88 0.90
175° 180° 185° 190° 195°
1.00 1.00 1.00 1.00 1.01
100° 105° 110° 115° 120°
0.91 0.92 0.93 0.94 0.95
200° 205° 210° 215° 220°
1.01 1.01 1.01 1.01 1.01
125° 130° 135° 140° 145°
0.96 0.96 0.97 0.97 0.98
225° 230° 240° 250°
1.01 1.01 1.02 1.02
150° 155° 160° 165° 170°
0.98 0.99 0.99 0.99 1.00
(ddg – ddk)2 4a
2. If the belt has to be fitted with a fixed drive centre distance, double the adjustment y must be added to the belt length Ldth (see pages 76 to 78). Ld = Ldth + 2 y 3. The next largest standard length LdSt should then be selected. A check should be made, usually on the drawing, to determine whether the belt can be adequately tensioned with the idler in the outermost position. In this idler position, both the standard length LdSt and double the adjustment x must be taken up (see pages 76 to 78). Ld for idler end position = LdSt + 2 x Fig. 4 Tension idler position after maximum belt stretch
Number of Belts
=
c1
with standard belt length
The following formula for determining the number of belts is obtained using the idler correction factor c4
fixed drive centre distance
z=
P · c2 PN · c1 · c3 · c4 117
Technical Manual V-Belts
Special Drives Twist Drives
Drives in which the belt run is transposed are often simply termed ”twist” drives. These can be drives where the shafts are not parallel, whose pulleys and idlers are not all arranged on one plane, or drives with two parallel but counter rotating shafts. Because of the twisting of the belt, this type of drive requires a certain degree of lateral bending flexibility. The cross section of the V-belt is better suited for this purpose than the flat belt. In most applications twist drives use only single V-belts, but drives using belt sets are possible. The crossing of the belt spans and the non-aligned entry of the belt into the pulley leads to a reduction of the belt service life.
The entry and exit angle between the belt and the pulley plane should not be more than 5°. The required inclination of the shafts and the pulleys relative to each other and the belt entry and exit angles should be confirmed by practical tests. In addition, certain critical drives may have a considerably improved safety factor if Optibelt special constructions are used. The most important types of twist drives and the associated design guidelines are illustrated in the following text.
Quarter Twist Drive The term quarter twist drive is used to describe systems where the shafts are at a 90° angle to each other. The ratio i or 1 : i on quarter twist drives should not be greater than 2.5.
Quarter Twist Drive Ratio i or 1 : i < 2.5
Quarter Twist Drive Ratio i or 1 : i > 2.5
118
Where this is not possible, a two stage drive should be employed, in which one stage takes the form of a standard V-belt drive.
Technical Manual V-Belts
Special Drives Twist Drives
Design Guidelines for Quarter Twist Drives
Plan view
Horizontal shaft
Vertical shaft
Elevation
Tight side
Horizontal shaft
1.
4. The direction of rotation must be arranged so that the tight side S1 is at the bottom.
amin = 5.5 (ddg + b2)
2. The drive must be aligned so that a straight line drawn through the centre of the vertical shaft runs through the centre of the face b2 of the pulley on the horizontal shaft (plan). The horizontal shaft must be at right angles to this straight line. 3. The horizontal centre line of the pulley on the horizontal shaft must be above and at a distance y1 from the centre line of the pulley on the vertical shaft (elevation). The distance y1 changes with the drive centre distance “a”.
5. Deep grooved pulleys should be specified where possible for single belt drives. This ensures an improved entry and exit of the belt, thus preventing turnover. 6. Never specify deep grooved pulleys when using kraftbands. Kraftband pulleys should always be used. We recommend, in any case, that our Applications Department be consulted. 7. When calculating the number of belts, the example given on pages 79 to 81should be followed. An arc of contact correction factor c1 = 1 must always be used. 8. The static belt tension “T” should be calculated using the formula on page 114.
Table 61 Drive centre distance a (mm)
y1 (mm) Classical V-belts
y1 (mm) Wedge belts
> > > >
1200 1500 2000 2500 3000
≤ ≤ ≤ ≤ ≤
1500 2000 2500 3000 3500
5 8 12 17 25
– 5 8 10 15
> > > > >
3500 4000 4500 5000 5500
≤ ≤ ≤ ≤ ≤
4000 4500 5000 5500 6000
35 45 55 65 80
25 30 40 45 55
100
65
> 6000
Vertical shaft
9. The drive centre distance must be adjustable so that the belt can be fitted without force, the necessary tension applied, and the belt stretch and wear taken up during its service life.
119
Technical Manual V-Belts
Special Drives Twist Drives
Eighth twist drives
Design Guidelines
Eighth twist drives are seldom required. The shafts in this drive system are at an angle of 45° relative to each other.
1.
amin = 4 (ddg + b2)
2. Otherwise the design guidelines for quarter twist drives are applicable.
Drives with 180° Twist The drive and the driven shafts are, as with conventional drives, parallel to each other. The belt is twisted through 180° so that both
spans cross. A change in direction is thus achieved at very little cost.
L in length m m span u im in M
Design Guidelines
Table 62 Section SPZ, 3V/9N SPA SPB, 5V/15N SPC 8V/25N A/13 B/17 C/22 D/32 E/40 120
Minimum span length Lmin (mm) 350 400 450 600 700 460 560 720 940 1150
2. As far as possible, the crossover point of the belt should be arranged in the centre of the belt spans. The rubbing of the belt spans against each other is at a minimum at this point. In order to avoid contact completely, it is recommended that a guide pulley be placed in the slack side S2 near the crossover point. 3. Length calculation
L ≈ 2a + 1.57 (dg + dk) +
(dg + dk)2 4a
4. Otherwise the design guidelines as detailed in points 4 to 9 for quarter twist drives are applicable.
▲
1. In order to guarantee the perfect running of the belts in the pulley grooves, the belt span length used must not be less than the minimum set out in the following table.
these values also apply for raw edge belts
Technical Manual V-Belts
Special Drives Drive Belts with Aramid Tension Cord
Aramid is an organic polyamide fibre that is manufactured by a complex chemical process. It may be used wherever maximum stress and reliability is required. The processing of this fibre requires the highest level of experience and know-how as well as sophisticated testing facilities. Aramid is used as the tension cord material for highly loaded V-belts and kraftbands.
Compared to materials customarily used for tension cords e.g. polyesters, Aramid is noted for its extremely low stretch properties. Its tensile strength is almost double that for the same thickness of standard fibre.
cN = centiNewton
The advantages of Optibelt V-belts and kraftbands that use Aramid tension cords are of special benefit where ● high power transmission levels are called for, ● there are limitations on the drive width, ● the adjustment available for tensioning is minimal,
Construction and Properties
Polyester Aramid
Applications
Tensile strength (cN/tex)
Total extension at fracture (%)
Tension 2% (cN/tex)
81 190
14 4
15 73
Fibre weight: 1 tex = 1 g/1000 m
Despite its extreme stability, this fibre is remarkably flexible and possesses sufficient elasticity to absorb shock loading or vibration. These properties, which are of special importance for V-belts and kraftbands, result in huge improvements in comparison to conventional constructions. Optibelt V-belts in Aramid cord construction comprise:
● the drive is exposed to high temperatures. Thus, with the same number of belts and unchanged drive parameters, significantly higher power levels can be transmitted without reducing the service life of the belts. Even drive designs that have previously had to be classified as critical may now be considered as risk free. Service factors are improved; minimal belt stretch results in virtually maintenance free running. For these reasons that Optibelt V-belts and kraftbands with Aramid tension cord are to be found on drives with exceptional loading requirements – ● on critical drives in industrial engineering applications, ● on special machines, ● on agricultural machinery and ● on horticultural machinery. Attention: For 2-pulley drives A discussion of all the relevant criteria would be beyond the scope of this manual. We therefore recommend that you contact our Applications Engineering Department to discuss your specific problems.
Fibre reinforced filler compound
Belt surface Aramid tension cord
Aramid tension cord
Bedding compound
Bedding compound
Base compound
Fibre reinforced base compound
Moulded cog
Fabric cover The high grade, specially processed Aramid tension cord is embedded in a rubber compound. It is effectively supported by a filler and base of polychloroprene and natural rubber compounds containing transversely arranged fibres. The fabric cover is treated on both sides with a rubber compound and completely envelops the V-belt.
Special applications can also be designed with raw edge V-belts and kraftbands employing Aramid tension cords. Drive Calculation Calculation must follow the example given on pages 79 to 81. Please ask for the details of the higher power ratings.
121
Technical Manual V-Belts
Special Drives Drive Belts with Aramid Tension Cord
Diagram 6
Diagram 7
Time/extension graph Belt size SPB 2000 Ld
60 50 40 30 20 10 0 0
1
2
3
4
5
6
7
8
9
10 11 12
n tio uc tr co ns co
rd
80
id
70
100
m
80
120
60
ra
90
Speed ratio i > 1.57
A
Running (minutes)
100
Datum diameter of the small pulley dak = 450 mm
Nominal power rating per belt PN (kW)
110
RED POWER II
Aramid cord construction
120
Power rating graph Belt size 8V 2000 Ld Polyester cord construction
130
40
l Po
20
ye
s
r te
co
rd
co
ns
tru
ct
io
n
0
13 14
0
Drive centre distance increase x (mm)
0
25
0
50
0
75
0
0 10
50 500 1 12
0
5 17
00
20
Speed n (rpm)
Test arrangement
This diagram shows, in a direct comparison, the significantly higher power rating of the Optibelt V-belt with the Aramid cord construction.
Sections / Lengths X 1600 N
Raw edge and wrapped Optibelt V-belts and kraftbands are available with Aramid to BS/DIN/ISO and USA Standard RMA/MPTA.
Free drive centre distance
Because of Aramid’s special properties, belts for multigrooved drives must be ordered in sets as the set tolerance is matched to the Aramid tension cord.
d1/d2 = 180 mm n1 = 1750 min-1 Brake load P = 15 kW
In this graph, the belt extension under load (drive centre distance increase) is plotted against time, for both materials. After only one hour, the increase with polyester is already several times that of Aramid.
Section
Lengths and minimum order quantities on request.
Lengths
Range
V-Belts SPZ
≥ 1000 Lw
≤ 3550 Lw
SPA
≥ 1000 Lw
≤ 4500 Lw
SPB
≥ 1250 Lw
≤ 8000 Lw
SPC
≥ 2000 Lw
≤ 12500 Lw
3V/ 9N
≥ 3V 400 / 9N 1016 La
≤ 3V 1400 / 9N
5V/15N
≥ 5V 500 / 15N 1270 La
≤ 5V 3550 / 15N 9017 La
8V/25N
≥ 8V 1000 / 25N 2540 La
≤ 8V 5000 / 25N 12700 La
As per the 3556 La
Kraftbands 3V/ 9J
≥ 3V 500 / 9J 1270 La
≤ 3V 1400 / 9J
5V/15J
≥ 5V 500 / 15J 1270 La
≤ 5V 3550 / 15J 9017 La
3556 La
8V/25J
≥ 8V 1000 / 25J 2540 La
≤ 8V 4750 / 25J 12065 La
Further sections and lengths and minimum quantities on request
Datum length Ld 122
pitch length Lw; outside length = La
Optibelt standard range
Technical Manual V-Belts
Design Hints Belt Tension for optibelt V-Belts
The correct level of belt tension has a direct and crucial bearing on the trouble free transmission of power and the achievement of acceptable belt service life. Belt tension which is either too high or too low often results in premature failure. Belts which are over tensioned sometimes cause damage to the bearings on the driver or driven units. Experience has shown that the more common tensioning methods, e.g. the ”thumb pressure method“ do not ensure tension settings that would enable drives to be operated at optimum efficiency. It is therefore recommended that the required static belt tension “T” be calculated for each drive using the Optibelt formulae. This tension is the lowest possible required by a drive to transmit the highest power level from the drive, taking account of the normal amount of slip. Once the belt has been fitted and the initial tension applied, it should be checked using an Optibelt tension gauge. The belt should be monitored regularly during the first few hours of operation. Experience has shown that the first retensioning should be undertaken after approximately 30 minutes to four hours running under full load. This takes up the initial belt stretch and ”bedding in“ to the pulley grooves.
Span
2. Determine the belt deflection per 100 mm span length E from the belt tension/deflection graphs diagrams 8 to 11. 3. Calculate the belt deflection for a given span length Ea, for the actual drive span length
Ea ≈
After approximately 24 hours of operation, it is often advisable to check the drive and retension the belts if necessary, particularly when not continuously run under full load. The time between checks can then be significantly increased. Our installation and maintenance advice on pages 132-133 should be observed. An over or under tensioning of the drive will be avoided if the belt tension is calculated, set and checked using one of the following methods: I. Checking the Belt Tension by Span Deflection This method provides an indirect measurement of the calculated or actual static belt tension. It is applicable for belt sections SPZ, SPA, SPB, SPC, 3V/9N, 5V/15N, Z/10, A/13, B/17, 20, C/22, 25, D/32, XPZ, XPA, XPB, XPC, 3VX, 5VX, ZX/X10, AX/X13, BX/X17, CX/X22. E = belt deflection per 100 mm span length
(mm)
Ea = belt deflection for a given span length
(mm)
f = load used to set belt tension
(N)
k = constant for calculation of centrifugal force L = drive span length
E·L 100
L = anom · sin
β 2
Apply the load to set belt tension T (taken from diagrams 8 to 11 for the appropriate belt section) to the centre of, and perpendicular to, the span, as shown in the illustration above. Measure the deflection and if necessary adjust the centres until the correct belt tension is achieved. II. Checking Belt Tension by Speed Measurement This method checks belt tension using the theoretical slip. The speeds of the driver and the driven pulleys are measured first in an unloaded condition and then under load. S
= slip
(%)
n1L = driver pulley speed, no load
(rpm)
n2L = driven pulley speed, no load
(rpm)
n1B = driver pulley speed, under load
(rpm)
n2B = driven pulley speed, under load
(rpm)
(mm)
Sa = minimum static shaft load
(N)
T = minimum static tension per belt
(N) Formula for calculating the slip:
1. Calculate the static belt tension using the following formula: T≈
500 · (2.02 – c1) · PB c1 · z · v
S = (1 –
n1L/n2L n1B/n2B
) · 100
+ k · v2
When first fitted, the belt should be tightened to 1.3 x T i.e 30 % higher than the calculated belt tension.
At the rated loading, the slip should not exceed 1 %. The belt service life is considerably shortened due to excessive flank wear and over heating when tension is too low and slip ensues under load. 123
Technical Manual V-Belts
Design Hints Belt Tension for optibelt V-Belts and Kraftbands
Diagram 8: Belt tension graphs for Optibelt SK wedge belts to BS 3790 and DIN 7753 Part 1 4.8 4.6 4.4 Belt deďŹ&#x201A;ection per 100 mm span length E (mm)
4.2 4.0 3.8
Section SPZ, 3V/9N SPA SPB, 5V/15N SPC
k 0.07 0.12 0.19 0.37
f (N) 25 50 75 125
Section Z/10 A/13 B/17 20 C/22 25 D/32
k 0.06 0.11 0.20 0.27 0.33 0.42 0.67
f (N) 15 25 50 75 100 125 150
3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 Minimum static belt tension T (N)
Diagram 9: Belt tension graphs for Optibelt VB classical V-belts to BS 3790 and DIN 2215 4.8 4.6 4.4
Belt deďŹ&#x201A;ection per 100 mm span length E (mm)
4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0
124
Minimum static belt tension T (N)
Technical Manual V-Belts
Design Hints Belt Tension for optibelt V-Belts and Kraftbands
Diagram 10: Belt tension graphs for Optibelt Super X-POWER M=S wedge belts – raw edge, moulded cogged – 4.8 4.6 4.4 Belt deflection per 100 mm span length E (mm)
4.2 4.0 3.8
Section XPZ, 3VX XPA XPB. 5VX XPC
k 0.06 0.11 0.18 0.34
f (N) 25 50 75 125
Section ZX/X10 AX/X13 BX/X17 CX/X22
k 0.06 0.10 0.17 0.28
f (N) 15 25 50 100
3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 Minimum static belt tension T (N)
Diagram 11: Belt tension graphs for Optibelt SUPER TX M=S V-belts – raw edge, moulded cogged – 4.8 4.6 4.4
Belt deflection per 100 mm span length E (mm)
4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 Minimum static belt tension T (N)
125
Technical Manual V-Belts
Design Hints Belt Tension for optibelt V-Belts and optibelt KB Kraftbands
III. Belt Tensioning Using a ”Length Additional Value” It has become evident that span deflection methods are not ideal for checking the tension of kraftbands of all sections, and of individual belts. The following, very simple method for the setting and checking of belt tension is therefore recommended: 1. Calculate the static belt tension “T”. T≈
500 · (2.02 – c1) · PB c1 · z · v
+ k · v2
Example: PB = 1136 kW c1 = 0.97 v = 25.91 m/s Drive arrangement with one set comprising: 2 Optibelt KB Kraftbands 4-8V 3750/25J 9525 La 2 Optibelt KB Kraftbands 5-8V 3750/25J 9525 La T≈
500 · (2.02 – 0.97) · 1136 0.97 · 18 · 25.91
+ 0.69 · 25.912 = 1782 N
2. Measure the setting length ”M” of the Kraftband or the single belt, whilst slack. The belt can be measured when fitted to the drive provided that it is completely without tension. 3. Procedure a) Fit the kraftband or the single belt on to the pulleys. Provisionally tighten the belt in order to seat it into the pulley grooves. b) Next completely slacken the kraftband or the single belt. c) Mark two lines on the top of the belt, distance “M” apart. The lines must be marked on the free span length, not where the belt is on the pulleys (“M” should ideally be 1000 mm minimum or a multiple but in any case should be as long as possible). Important: The longer the measured section, the more accurate the tension setting will be. 4. Calculate the length additional value “A” using the formula A =
M·R 1000
Where “M” is 4000 mm A =
4000 · 5.4 1000
= 21.6 mm
R = stretch factor from Table 63, page 127 5. Tighten the kraftband or the single belt until the distance “M” is increased by the value “A”. The drive will now be correctly tensioned.
Tighten the kraftband until the lines marked on the top surface are “M” plus the length additional value apart. This will set the correct tension.
6. If the drive is to be retensioned, the belt must first be slackened off again so that “M” can be marked completely without tension. The procedure described under paragraphs 3. to 5. above must then be repeated.
When the belt is first installed the belt tension must be multiplied by 1.3.
Note: The tension set will be more accurate if the drive is rotated 2 or 3 times to settle the belts into the pulley grooves before finally accepting the value M + A.
126
Technical Manual V-Belts
Design Hints Belt Tension for optibelt V-Belts and optibelt KB Kraftbands
Table 63: Length addition per 1000 mm belt length Section Kraftband
3V/9J
5V/15J
8V/25J
SPZ
SPA
SPB
SPC
A/HA
B/HB
C/HC
Single belt
3V/9N
5V/15N 8V/25N
SPZ
SPA
SPB
SPC
A/13
B/17
C/22
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
Minimum static belt tension per rib/single belt T (N)
(mm)
(mm)
(mm)
50 75 100 125 150
0.8 1.2 1.6 2.1 2.6
0.8 1.2 1.6 2.1 2.6
0.8 1.0 1.3 1.6 1.9
0.8 1.0 1.3 1.6 1.9
0.8
175 200 225 250 275
3.0 3.5 4.0 4.5 4.9
3.0 3.5 4.0 4.5 4.9
2.2 2.5 2.8 3.0 3.3
2.2 2.5 2.8 3.0 3.3
0.9 1.1 1.2 1.4 1.5
300 350 400 450 500
5.3 6.4 7.6 8.7 10.0
5.3 6.4 7.6 8.7 10.0
3.6 4.2 4.7 5.3 5.8
3.6 4.2 4.7 5.3 5.8
1.6 1.8 2.0 2.2 2.5
1.6 1.8 2.1 2.3 2.5
2.7 3.0 3.2 3.5 4.2
2.7 2.9 3.1 3.4 3.8
4.8 5.3
4.2 4.7 5.1 5.5
1.3 1.7 2.0 2.4 2.7
1.3 1.7 2.0 2.4 2.7
550 600 650 700 800
3.1 3.4 3.8 4.1 4.8
3.1 3.4 3.8 4.1 4.8
2.0 2.2 2.4 2.8
900 1000 1100 1200 1300
5.5 6.2 6.9 7.6 8.3
2.9 3.3
5.5 6.2 6.9 7.6 8.3
3.3 3.7 4.1 4.5 5.0
1400 1500 1600 1700 1800
9.0 9.7 10.4 11.1 11.8
3.7 4.1 4.6 5.0 5.5
9.0 9.7 10.4 11.1 11.8
5.4 5.8 6.3 6.8 7.3
1900 2000 2100 2200 2300
6.0 6.5 7.0 7.5 8.0
2400 2500 2600 2700 2800
8.6 9.6 10.6 11.7 12.8
2900 3000 3100 3200 3300
13.5 14.2 14.9 15.6 16.3
7.8 8.3 8.8 9.3 9.8
“k” for kraftbands
0.12
0.25
0.69
0.12
0.16
0.25
0.55
0.16
0.27
0.45
“k” for single belts
0.07
0.19
0.57
0.07
0.12
0.19
0.37
0.11
0.20
0.33
Intermediate values may be determined by linear interpolation. The figures apply only for drives with grooved pulleys. Values for V-flat drives can be provided upon request.
127
Technical Manual V-Belts
Design Hints Calculating the Axial Force/Shaft Loading under Dynamic Conditions
With drives having electric motors as the prime movers, care should be taken to ensure that the dynamic loading can be safely accommodated by the motor shafts and bearings to which it is applied. Experience has shown that drives on ● electric motors, ● internal combustion engines, ● turbines, ● and very heavy-duty drives such as stone crushers, calenders, and heavily loaded mills,
In the case of two pulley drives, the driver and driven shafts and the bearings are subjected to the same dynamic axial force, but in opposite directions. When idlers are employed, the magnitude and the direction of the axial force are almost always different on each pulley. If the magnitude and direction of the dynamic axial force is to be determined, a graphical solution, using a vector diagram for the dynamic forces in the tight side S1 and the slack side S2, is always recommended. If only the magnitude of the dynamic axial force is to be determined, this can be achieved using the formula for “Sa dyn“.
call for the dynamic bearing load to be determined, that is the shaft and bearing loads on both the driver and the driven shafts.
Data from the calculation examples given on pages 79 to 81.
Exact calculation of the ”dynamic axial force” saves unnecessary expense of:
PB = 171.6 kW
c1 = 1.00
v = 21.76 m/s
β = 170°
● premature bearing failure, ● shaft failure or ● over designed bearings and shafts. Dynamic tight side tension S1 ≈
1020 · PB c1 · v
S1 ≈
1020 ·171.6 1.0 · 21.76
≈ 8044 N
Dynamic slack side tension S2 ≈
1000 · (1.02 – c1) · PB c1 · v
S2 ≈
1000 · (1.02 – 1.0) · 171.6 1.0 · 21.76
≈ 158 N
A) Graphical solution
B) Solution using the formula for Sa dyn Dynamic axial force Sa dyn ≈ 128
S12 + S22 – 2 S1 · S2 · cos β
Sa dyn ≈
80442 + 1582 – 2 · 8044 · 158 · 0.9848 ≈ 8200 N
Technical Manual V-Belts
Design Hints Belt Tensioning for optibelt V-Belts
optibelt TT mini Tension Tester The optibelt TT mini is used for tension checking of drive belts by means of frequency measurement in Hertz (Hz). Advantages of the optibelt TT mini: ● Readings in Hertz [Hz] ● Wide measurement spectrum from 10-600 Hz ● Non-contact repeatable measurement ● Very compact and easy to handle ● Automatic shut down ● Works calibrated and CE approved
Span Tension Calculation Formula:
T = 4 · k · L2 · f2 T k L f
Span tension [N] Belt weight [kg/m] Span length [m] Frequency [Hz]
Optikrik Tension Gauges optibelt TT 3 Tension Tester This optibelt TT 3 Tension Tester is used for tension checking of drive belts by means of frequency measurement. Measurements are in Hertz (Hz). When belt parameters are entered, tension is indicated in Newton (N). Advantages of the tester: ● Non-contact, repeatable measurements ● Easy to handle ● Wide measurement spectrum from 10-600 Hz ● High accuracy of measurement ● Quality evaluation of the measurement result ● Storage in a data base ● Easy to use ● Universal measuring head for comfortable measuring ● Data communication via PC
pressure surface pocket clip
rubber finger loop indicator arm
belt pressure spring
This gauge offers a simplified method of belt tensioning. This simplified tensioning method should be used for example when technical data is not known and the optimum tension therefore cannot be calculated. This method requires only knowledge of the diameter of the small pulley and the belt section and construction. The Optikrik tension gauge is used to directly read the belt tension. By reducing or increasing the belt tension the desired value can be obtained.
For different tensioning values, Optikrik 0, I, II, III with corresponding measurement ranges are available. Instructions for use 1. The gauge is placed in the middle between the two pulleys on the back of the belt, in the case of sets of belts ideally on the central belt. Before doing this, ensure that the indicator is pushed down into the gauge body. (First press the indicator arm onto the scale.) 2. Lay the gauge loosely on the belt to be measured and press a finger slowly on to the pressure surface. 3. Try not to touch the gauge with more than one finger during the measuring process. 4. Once you hear or feel a definite click, immediately release pressure and the indicator arm will remain in the measured position. 5. Carefully lift the gauge without moving the indicator arm. Read off the belt tension (see diagram). Read off the measurement at the exact point where the top surface of the indicator arm crosses the scale. 6. Reduce or increase the belt tension according to the measurement result until it is within the desired tension level. 129
Technical Manual V-Belts
Design Hints Belt Tensioning for optibelt V-Belts
Static belt tension Tmax (N)
Section Diameter of small pulley RED POWER II
Initial fitting Re-fitting new V-belts existing V-belts
(mm)
Standard (wrapped)
Super X-POWER M=S SUPER TX M=S
Initial fitting
Retension
Initial fitting
Retension
SPZ; 3V/9N; XPZ; 3VX/9NX
≤ 71 > 71 ≤ 90 > 90 ≤ 125 > 125 *
250 300 400
200 250 300
200 250 350
150 200 250
250 300 400
200 250 300
SPA; XPA
≤ 100 > 100 ≤ 140 > 140 ≤ 200 > 200 *
400 500 600
300 400 450
350 400 500
250 300 400
400 500 600
300 400 450
SPB; 5V/15N; XPB; 5VX/15NX
≤ 160 > 160 ≤ 224 > 224 ≤ 355 > 355 *
700 850 1000
550 650 800
650 700 900
500 550 700
700 850 1000
550 650 800
SPC; XPC
≤ 250 > 250 ≤ 355 > 355 ≤ 560 > 560 *
1400 1600 1900
1100 1200 1500
1000 1400 1800
800 1100 1400
1400 1600 1900
1100 1200 1500
Z/10; ZX/X10
≤ 50 > 50 ≤ 71 > 71 ≤ 100 > 100 *
A/13; AX/X13
≤ 80 > 80 ≤ 100 > 100 ≤ 132 > 132 *
B/17; BX/X17
≤125 > 125 ≤160 > 160 ≤200 > 200 *
C/22; CX/X22
≤ 200 > 200 ≤ 250 > 250 ≤ 355 > 355 *
* Tension values for these pulleys must be calculated. Tension Gauges: Optikrik 0 Optikrik I Optikrik II Optikrik III
130
range: range: range: range:
70 – 150 150 – 600 500 – 1400 1300 – 3100
N N N N
–
–
90 120 140
70 90 110
120 140 160
90 110 130
–
–
150 200 300
110 150 250
200 250 400
150 200 300
–
–
300 400 500
250 300 400
450 500 600
350 400 450
–
–
700 800 900
500 600 700
800 900 1000
600 700 800
The static tension values shown are calculated for maximum power transmission capability (per V-belt) and should be applied only when accurate data is not available. Calculation Basis Wedge belts Classical V-belts
speed v = 5 to 42 m/s speed v = 5 to 30 m/s
Technical Manual V-Belts
Design Hints Installation and Maintenance Aids
131
Technical Manual V-Belts
Design Hints Installation and Maintenance Aids
Safety: Before starting any maintenance work, it is extremely important that any machine components are in a safe position which cannot be changed during maintenance work. In addition, safety recommendations of the manufacturer are to be strictly observed. optibelt KS V-Grooved Pulley with Taper Bush The V-grooved pulleys are to be checked for damage and correct dimensions before installation. Installation (see pictures on page 134) 1. All shiny surfaces like bore and tapered surface of the taper bush as well as the tapered bore of the pulley have to be cleaned and degreased. Insert taper bush and hub and align all connecting bores. Half tapped holes have to face half plain bores. 2. Stud screws (TB 1008-3030) and/or cap head screws (TB 3525-5050) should be slightly greased and screwed in. Do not yet tighten the screws. 3. Clean and degrease the shaft. Push pulley with
taper bush to the desired position on the shaft. See alignment of the V-grooved pulley. 4. When using a key, it has to be inserted in the hub of the shaft first. Between the key and the bore hub there needs to be a certain tolerance. 5. With a socket wrench according to DIN 911 stud screws and/or cap head screws have to be tightened uniformly using the tightening torque stated in the table. 6. After a short operation period (0.5 to 1 hour) check tightening torque of the screws and correct if necessary. 7. In order to prevent the ingress of foreign material, fill empty removal bores with grease.
Taper Bushes, Screw Tightening Torque Dimension TB TB TB TB TB TB TB TB TB
1008, 1210, 2012 2517 3020, 3525, 4040 4545 5050
Wrench size
No. of screws
3 5 6 6 8 10 12 14 14
2 2 2 2 2 3 3 3 3
1108 1215, 1310, 1610, 1615 3030 3535
Tightening moment (Nm) 5.7 20.0 31.0 49.0 92.0 115.0 172.0 195.0 275.0
Horizontal Alignment of Shafts Motor and drive shafts are to be aligned using a spirit level, if necessary. Note! Maximum recommended shaft deviation 0.5°
Vertical Alignment of the V-Grooved Pulleys The alignment of the V-grooved pulleys is checked before and after tightening the taper bushes using a straight edge or laser alignment tool. Note! Check whether the face widths of the V-grooved pulleys have the same sizes. A possible deviation of the face width has to be taken into consideration. With a symmetrical face set-up, the distance of the parallel to the smaller face is half the deviation.
132
Technical Manual V-Belts
Design Hints Installation and Maintenance Aids
Initial Installation
Always install the V-belts without using force. Installations using screw drivers, crowbars etc. cause internal and external damage to the belt. V-belts installed under force might only run for several days. A proper installation of the belt saves you time and money. Where there is insufficient adjustment for easy belt fitting the belts should be fitted to the pulleys before the pulleys are fitted to the shafts.
Belt Tensioning
Use belt tensioning values according to Optibelt’s recommendations. Set the belt tension with the motor and machine shafts parallel. Operate the belt for some revolutions and check the belt tension again. By experience, belt tension should be checked again after an operation time of about 0.5 to 4 hours and corrected, if necessary. * For further hints on belt tensioning see page 129.
* Optikrik
Permissible Shaft Deviation
After applying the initial installation tension the distances X1, X2 between the two pulleys dd1, dd2 and the parallel set to axis height should be measured with attached adjust guide bar or Optibelt Laser Pointer. The maximum permissible values for the distance X from the table should not be exceeded, depending on the diameter dd. Depending on the pulley diam-eter, the intermediate values for X should be interpolated.
Pulley diameter dd1, dd2 112 224 450 630 900 1100 1400 1600
mm mm mm mm mm mm mm mm
Max. permissible deviation X1, X2 0.5 1.0 2.0 3.0 4.0 5.0 6.0 7.0
mm mm mm mm mm mm mm mm
Drive Checking
We recommend checking the drive regularly, e.g. after each 3 to 6 months. V-grooved pulleys are to be checked for wear and consistency. Use the Optibelt section and pulley groove templates as aids. When changing V-grooved pulleys with taper bushes (see figures on page 132) the following procedures should be observed. 1. Loosen all screws. Screw out one or two screws depending on the bush size, grease them and screw them into the extraction bores. 2. Tighten the screw or screws equally until the bush releases from the hub and the pulley can be moved freely on the shaft. 3. Take off the pulley with the bush from the shaft.
** Section and pulley groove template 133
Technical Manual V-Belts
Design Hints Installation and Maintenance Aids V-Grooved Pulleys with Taper Bushes
Assembly Bush TB 1008-3030
Bush TB 3525-5050
Disassembly Bush TB 1008-3030
134
Bush TB 3525-5050
Technical Manual V-Belts
Design Hints Storage
● General Note on Storage Properly stored V-belts retain their properties for many years (see also DIN 7716). However, when stored under poor conditions or handled incorrectly, the physical properties of most rubber products will be impaired. This can be the consequence for example of the effects of oxygen, ozone, extreme temperatures, light, moisture or solvents.
● Storage Area The storage area should be dry and dust free. V-belts must not be stored close to chemicals, solvents, fuels, lubricants and acids etc.
● Temperature V-belts should be stored at temperatures between + 15 °C and + 25 °C. Lower temperatures usually have no detrimental effect on the V-belts. Since, however, belts become very stiff at low temperatures, they should be warmed to approximately + 20 °C before fitting to avoid fracture and cracking. Radiators and supply pipes should be screened. V-belts should be stored at least 1 m away from heat sources.
● Proper Storage Because stress can promote both permanent deformation and cracking, care must be taken to ensure that V-belts are stored without stress i.e. without tension, compression or any other form of pressure. If V-belts have to be stored horizontally and stacked upon each other, it is recommended that the stack height does not exceed 300 mm in order to avoid permanent deformation. If, in order to save space, V-belts are hung, the diameter of the cylinder on which the belts rest should be at least ten times the height of the belt section. optibelt S=C plus, optibelt Super X-POWER M=S and optibelt SUPER TX M=S belts do not need to be stored in sets as they can be formed into sets without having to be measured.
● Cleaning Dirty V-belts can be cleaned using a 1:10 mixture of glycerine and methylated spirits. Petrol, benzole, turpentine and the like should not be used. In addition, sharp objects, wire brushes, emery paper etc. must, under all circumstances, be avoided as these can cause damage to the belt.
● Light V-belts should be protected against light, especially direct sunlight and strong artificial light with a high ultra-violet content (ozone formation) such as naked fluorescent tubes. Illumination using conventional light bulbs is advisable.
● Ozone In order to counteract the harmful effects of ozone, warehouses should not contain any appliances that generate ozone, for example fluorescent lights, mercury vapour lamps or high voltage electrical equipment. Combustion gases and vapours which could lead to the formation of ozone by photo-chemical processes must be avoided or eliminated.
● Moisture Damp storage areas are unsuitable. Care must be taken to ensure that condensation does not develop. The most favourable relative air humidity is below 65 %.
135
Technical Manual V-Belts
Design Hints Physical Properties
yes
yes
– 30 + 100
good
yes
Super X-POWER M=S, SUPER TX M=S raw edge, moulded cogged V-belts
– 30 + 90
good
MARATHON 1, MARATHON 2 M=S automotive belts
– 30 + 90
VB classical V-belts
– 40 + 70
KB kraftbands
– 40 + 70
DK double section V-belts
Special construction
yes
Standard construction
Constructions for mining applications
limited
SK high performance wedge belts
– 40 + 70
RED POWER II high-performancewedge belts
Stretch
Smooth running
S=C plus Set Constant M=S Matched Set
– 30 + 90
Standard construction
Anti-static properties (after testing)
Oil resistance
Standard construction
Ambient temperature maximum/minimum (°C) Special construction XHR
These tables are provided to simplify selection of the correct Optibelt for any drive problem. Detailed information is given elsewhere in this manual or in similar Technical Manuals for products other than V-belts or kraftbands.
medium/ good
low
very low
yes
good
very low
yes
yes
good
very low
good
yes
M2 yes
good
very low
– 30 + 90
limited
yes
yes
medium/ good
low
very low
– 35 + 90
limited
yes
good
low
very low
– 35 + 85
good
yes
medium
low
SUPER VX variable speed belts
– 30 + 90
good
yes
very good
very low
RB ribbed belts
– 30 + 90
PJ PK, PL special construction
very good
low
136
– 30 + 120
good
yes
Technical Manual V-Belts
Design Hints Physical Properties
Special construction
Maintenance
low
possible
no
up to limited good 1 : 10
low
≤ 55*
up to 97 %
good
low
possible
no
up to good 1 : 10
Standard construction
Synchronous
good
Recommended max. speed ratio
Use on variable speed pulleys
up to 97 %
Efficiency
≤ 42
Recommended max. belt speed m/s
Vibration tendency
Recommended applications
Behaviour under shock loading
Use with outside idlers
–
maintenance free
Super X-POWER: low maintenance
There are a number of applications that can be covered by more than one type of belt. In these instances, belt selection must be made on an individual case basis.
Compressors, mixers, rotary print machines, extruders, worm compressors, textile looms, axial flow fans, rotary pumps
Fans, pumps, mixers, grinders, special machinery, lathes and drills, grinders
depends on section up to ≤ 55* 97 %
good
low
possible
no
up to good 1 : 12 limited
≤ 42
up to 97 %
good
low
possible
no
up to good maintenance 1 : 12 limited free
Automobiles, generators, water pumps, fans
≤ 30
up to 97 %
good
low
possible
no
up to 1 : 12 limited good
low
Pumps, presses, crushers, rotary saws, pillar drills, planing machinery, concrete mixers, compressors, lawn mowers, aerators, bale presses, chaff cutters
depends up to on section 97 % ≤ 42
very good
very low
not possible
no
up to limited very 1 : 15 good
low
Fans, shredders, road millers, extruders, rotary mowers, stone crushers, saw mills, vibration rollers, conveyors, mixers, combine harvesters, pulpers
up to 95 %
good
low
not possible
no
up to very 1 : 5 good good
low
Special reversible drives, textile looms, sweepers, harvesters
depends up to on section 95 % ≤ 42
good
low
good
no
limited
low
Special drives, compact units, snowmobile drives, multi-colour offset, adjustable pulley sets, thresher drum drives, spooling machines, lathes
good
very low
not possible
no
up to good 1 : 35
low
Offset machines, washing machines, milling machines, drills, auxiliary drives, main shaft drives
≤ 30
depends up to on section 96 % ≤ 60
up to 1 : 12 for 2 variable speed pulleys
* Where V > 42 m/s please consult our Applications Engineering Department
Fans, pumps, mixers, grinders, special machinery, lathes and drills, grinders
137
Technical Manual V-Belts
Design Hints Physical Properties
– 30 + 100
– 30 + 140
limited
yes
ZR timing belts
– 30 + 100
– 30 + 140
limited
yes
very good
none
ALPHA timing belts made from polyurethane
– 30 + 80
good
no
good
none
RR plastic round section belting
– 10 + 80
good
no
medium
high
KK plastic V-belting
– 10 + 80
good
no
medium
high
Optimat OE open-ended V-belting, punched DIN 2216
– 20 + 70
limited
no
medium
high
PKR V-belts with patterned top surface
– 30 + 70
limited
yes
medium
low
Optimax HF high performance flat belts
– 20 + 110
limited
no
very good
low
138
very good gut
Stretch
Anti-static properties (after testing)
OMEGA, OMEGA HP + OMEGA HL timing belts
Smooth running
Standard construction
Oil resistance
Special construction XHR
Ambient temperature maximum/minimum (°C) Standard construction
These tables are provided to simplify selection of the correct Optibelt for any drive problem. Detailed information is given elsewhere in this manual or in similar Technical Manuals for products other than V-belts or kraftbands.
none
Technical Manual V-Belts
Design Hints
Recommended applications
Maintenance
Special construction
Standard construction
Recommended max. speed ratio
Synchronous
Use with outside idlers Use on variable speed pulleys
Vibration tendency
Behaviour under shock loading
Efficiency
Recommended max. belt speed m/s
Physical Properties
There are a number of applications that can be covered by more than one type of belt. In these instances, belt selection must be made on an individual case basis.
depends up to depends not on section 98 % sensitive on possible speed ≤ 80
yes
up to good good maintenance free 1 : 10
Textile machines, spinning machines, textile looms, printing machines, paper machines, wood working machines, machine tools, linear units, conveyors, skid unit, packing machines, door and gate openers, lifting devices, mixers, extruders, compressors
depends depends not on on section up to sensitive 98 % speed possible ≤ 80
yes
maintenance up to free 1 : 10 good good
Copiers, food processors, swivel arm robots, gripper drives, belt grinders, cam shaft drives, brush drives, clocks, X-ray equipment, envelope stuffers, cameras, plotters, coin operated machinery, main and feed drives, conveyor drives, material feed, printers
depends depends not on on section up to sensitive 98 % speed possible ≤ 80
yes
maintenance up to free 1 : 10 good good
Cameras, plotters, printers, coin operated machinery, main and feed drives, conveyor drives, sample conveyors, material feed, flight models
≤ 20
up to 95 %
good
low
not possible
no
frequent up to good good retensioning 1 : 10
Special machinery
≤ 20
up to 95 %
good
low
not possible
no
frequent up to 1 : 10 good good retensioning
Packaging machinery, conveyor systems, ram conveyors, varnishing equipment
≤ 20
up to 90 %
good
medium
limited possible
no
up to limit1 : 10 ed
depends on section up to 95 % ≤ 20
good
low
limited possible
no
up to limit1 : 10 ed
up to 95 %
good
very low
not possible
no
up to very 1 : 12 good
≤ 70
frequent retensioning
good
Where installation conditions are difficult
low
Conveyor systems in the timber industry, in cement works, in agriculture, in the ceramics industry, in the glass industry, at airports, in sea and river ports
low
Water turbines, emergency power generators, saw mills, shredders, worm compressors, roller drives, transmission drives, conical drives, cross cutters, floor cleaning equipment, multiple positioning drives, crushers, sealing belts, hammer mills
139
Technical Manual V-Belts
Design Hints Problems – Causes – Remedies
Problems Belt failure shortly after fitting (belt snaps)
Breaks and cracks in the base of the belt (brittleness)
Severe belt vibration
Belts cannot be retensioned
Causes
Remedies
Forceful installation, causing damage to the tension cord
Follow installation instructions for easy belt fitting
Ingress of foreign matter during operation
Fit protective guard
Drive undersized, not enough belts
Check drive design and determine new dimensions
Drive jammed
Remove cause
Outside idler pulley in use that does not comply with the positioning and sizes recommended by us
Observe Optibelt recommendations, e.g. increase the diameter; replace with an inside idler on the slack side of the drive; use Optibelt RED POWER II or an Optibelt special construction
Pulley diameter too small
Re-design using recommended minimum pulley diameters; use an Optibelt special construction, or Optibelt Super X-POWER, Optibelt SUPER TX M=S
Excessive heat
Remove or baffle heat source; improve ventilation; use Optibelt Super X-POWER, Optibelt SUPER TX M=S or V-belt with Aramid cord construction
Excessive cold
Warm the belt before operation; use Optibelt special construction XCR (extra cold resistant)
Excessive belt slip
Retension drive according to installation instructions; check drive design and re-design if necessary
Contamination by chemicals
Protect drive from contamination source; use Optibelt special construction
Drive undersized
Check drive design and modify if necessary
Centre distance significantly longer than recommended
Shorten centre distance; use an inside idler in the drive slack side; re-design using Optibelt KB Kraftbands
High shock load
Use Optibelt KB Kraftbands; use an inside idler in the drive slack side; use an Optibelt special construction
Belt tension too low
Correct tension
Unbalanced V-pulleys
Balance pulleys
Insufficient allowance for centre distance in drive design
Modify drive to allow for the Optibelt recommended take-up
Excessive stretch caused by inadequate performance
Carry out drive calculation and re-design
Incorrect belt length
Use shorter belts
Should other problems occur, please contact our engineers from the Applications Engineering Department. They will require comprehensive technical details in order to provide you with concrete solutions.
140
Technical Manual V-Belts
Design Hints Problems – Causes – Remedies
Problems Belts turn over in pulley grooves
Causes Poor drive alignment Incorrect belt/pulley groove section Excessive wear in pulley grooves Excessive vibration Belt tension too low Foreign matter in the pulley grooves
Remedies Realign pulleys Match belt and pulley groove section Renew pulleys Use an inside idler on drive slack side; use Optibelt KB Kraftbands Re-tension drive Remove foreign matter and install drive guard
Starting torque too high
Check drive design and re-design
Incorrect pulley groove angle
Re-machine or replace pulleys
Excessive pulley groove wear
Replace pulleys
Incorrect belt/pulley groove section
Match belt and pulley groove section
Poor pulley alignment
Realign pulleys
Pulley diameter below recommended minimum
Increase pulley diameter (re-design drive); use Optibelt special construction, Optibelt Super X-POWER M=S or Optibelt SUPER TX M=S
Belt tension too low
Check tension and retension
Belt rubbing against or catching on protruding parts
Remove protruding parts; re-position drive
Poor pulley alignment
Realign pulleys
Belt tension too low
Check tension and retension
Drive overloaded
Check drive design and re-design if necessary
Belt swelling or softening and sticky
Contamination by oil, grease, chemicals
Protect drive from contamination source; use Optibelt Super X-POWER M=S or Optibelt SUPER TX M=S or Optibelt Construction ”05” clean pulley grooves with petrol or alcohol before fitting new belts
Uneven belt stretch
Worn or badly machined pulley grooves
Replace pulleys
Used belts mixed with new belts on the drive
Replace with a completely new set of belts
Belts from different manufacturers used on same drive
Belt sets must comprise belts from one manufacturer only – Optibelt S=C plus, Optibelt SUPER TX M=S, Optibelt RED POWER II,Optibelt Super X-POWER M=S
Excessive wear on belt edges
Excessive running noise
Should other problems occur, please contact our engineers from the Applications Engineering Department. They will require comprehensive technical details in order to provide you with concrete solutions.
141
Technical Manual V-Belts
Design Hints Length Measurement Conversion and Conditions Factors
Measuring the Belt Length The belt is placed over two identically sized measuring pulleys with the design of groove shown in the following drawings. The dimensions are given in the tables 64 to 70, on pages 143/144.
Measuring pulley for wedge belts to BS 3790, DIN 7753 Part 1 and classical V-belts to BS 3790 and DIN 2215
Pressure is applied to the adjustable pulley so that the force Q is applied to the belt. Before measuring the drive centre distance a, the belt should be fully rotated three times under load. This ensures that the belt is well seated in the pulley, an essential pre-condition for the accuracy of the resulting measurement. The length is obtained by adding the diameter of the pulley to twice the drive centre distance a. Ld = 2 a + Ud La = 2 a + Ua You will ďŹ nd the length conversion factors in the tables on pages 143/144 and 147/148.
Measuring pulley for wedge belts USA Standard RMA/MPTA
Arrangement for measuring belt length
Measuring pulley for kraftbands
Measuring pulley for double section V-belts
Force Q (N)
142
Technical Manual V-Belts
Design Hints Length Measurement Conversion and Conditions Factors
Table 64: Optibelt SK wedge belts Optibelt Super X-POWER M=S wedge belts, raw edge, moulded cogged Measuring pulleys and force to BS 3790, DIN 7753 Part 1 and ISO 4183 Datum circumference Ud = dd · π
Datum diameter
Outside diameter
Datum width
Groove angle
Groove depth
Force
Outside length
Inside length
dd ± 0.05
da ± 0.05
bd
α° ± 10’
tmin
Q (N)
La (mm)
Li (mm)
SPZ; XPZ
300
95.49
100
8.50
36
11
360
La ≈ Ld + 13 La ≈ Li + 51
Li ≈ Ld – 38 Li ≈ La – 51
SPA; XPA
450
143.24
149
11.00
36
14
560
La ≈ Ld + 18 La ≈ Li + 63
Li ≈ Ld – 45 Li ≈ La – 63
SPB; XPB
600
190.99
198
14.00
36
18
900
La ≈ Ld + 22 La ≈ Li + 82
Li ≈ Ld – 60 Li ≈ La – 82
SPC; XPC
1000
318.31
328
19.00
36
24
1500
La ≈ Ld + 30 La ≈ Li + 113
Li ≈ Ld – 83 Li ≈ La – 113
Section
Table 65: Optibelt SK wedge belts Optibelt Super X-POWER M=S wedge belts, raw edge, moulded cogged Measuring pulleys and force to USA Standard RMA/MTPA Outside circumference Ua = da · π
Outside diameter
3V/9N; 3VX/9NX 5V/15N; 5VX/15NX
Section
8V/25N
Groove angle
Groove depth
Force
Inside length
da ± 0.13
Upper groove width b1 ± 0.13
α° ± 15’
tmin
Q (N)
Li (mm)
300
95.50
8.90
38
9.00
445
Li ≈ La – 42
600
191.00
15.24
38
15.00
1000
Li ≈ La – 71
1000
318.30
25.40
38
25.50
2225
Li ≈ La – 120
Table 66: Optibelt VB classical V-belts Optibelt SUPER TX M=S classical V-belts, raw edge, moulded cogged Measuring pulleys and force to BS 3790, DIN 2215 and ISO 4183
Section
Datum circumference Ud = dd · π
Datum diameter
Outside diameter
Datum width
Groove angle
Groove depth
Force
Outside length
Inside length
dd ± 0,05
da ± 0,05
bd
α° ± 10’
tmin
Q (N)
La (mm)
Ld (mm)
5
70
22.28
24.88
4.20
32
5
30
La ≈ Li + 19 La ≈ L d + 8
Ld ≈ Li + 11 Ld ≈ L a – 8
Y/6
90
28.65
31.85
5.30
32
6
40
La ≈ Li + 25 La ≈ Ld + 10
Ld ≈ Li + 15 Ld ≈ La – 10
8
140
44.56
48.56
6.70
32
8
80
La ≈ Li + 31 La ≈ Ld + 12
Ld ≈ Li + 19 Ld ≈ La – 12
Z/10; ZX/X10
180
57.30
62.30
8.50
34
10
110
La ≈ Li + 38 La ≈ Ld + 16
Ld ≈ Li + 22 Ld ≈ La – 16
A/13; AX/X13
300
95.50
102.10
11.00
34
12
200
La ≈ Li + 50 La ≈ Ld + 20
Ld ≈ Li + 30 Ld ≈ La – 20
B/17; BX/X17
400
127.32
135.72
14.00
34
15
300
La ≈ Li + 69 La ≈ Ld + 29
Ld ≈ Li + 40 Ld ≈ La – 29
20
520
165.52
175.12
17.00
34
18
750
La ≈ Li + 79 La ≈ Ld + 31
Ld ≈ Li + 48 Ld ≈ La – 31
C/22; CX/X22
700
222.82
234.22
19.00
34
20
750
La ≈ Li + 88 La ≈ Ld + 30
Ld ≈ Li + 58 Ld ≈ La – 30
25
800
254.65
267.25
21.00
34
22
750
La ≈ Li + 100 La ≈ Ld + 39
Ld ≈ Li + 61 Ld ≈ La – 39
D/32
1000
318.31
334.52
27.00
36
28
1400
La ≈ Li + 126 La ≈ Ld + 51
Ld ≈ Li + 75 Ld ≈ La – 51
E/40
1800
572.96
596.96
32.00
36
36
1800
La ≈ Li + 157 La ≈ Ld + 77
Ld ≈ Li + 80 Ld ≈ La – 77
143
Technical Manual V-Belts
Design Hints Length Measurement Conversion and Conditions Factors
Table 67: Optibelt KB Kraftbands with high performance wedge belts Measuring pulleys and force Groove angle
Groove depth
Mean distance
Tolerance
Σ Tol.
Force per rib
Inside length
da ± 0.13
Upper groove width b1 ± 0.13
α° ± 15’
tmin
e
e1)
e2)
Q (N)
Li (mm)
300
95.50
8.90
38
9.00
10.30
± 0.25
± 0.5
445
Li ≈ La – 42
5V/15J
600
191.00
15.20
38
15.00
17.50
± 0.25
± 0.5
1000
Li ≈ La – 71
8V/25J
1000
318.30
25.40
38
25.50
28.60
± 0.40
± 0.8
2225
Li ≈ La – 120
Outside circumference Ua = da · π
Outside diameter
3V/9J
Section
Table 68: Optibelt KB Kraftbands Measuring pulleys and force Section
Datum circumference Ud = dd · π
Datum Outside diameter diameter
Datum width
Groove angle
Groove depth
Mean Tolerance distance
Σ Tol.
Force per rib
Datum length
dd ± 0.13
da ± 0.13
bd
α° ± 15’
tmin
e
e1)
e2)
Q (N)
Ld (mm)
SPZ
300
95.49
100.00
8.50
36
11.00
12.00
± 0.30
± 0.5
360
Ld ≈ La – 13
SPA
450
143.24
149.00
11.00
36
14.00
15.00
± 0.30
± 0.5
560
Ld ≈ La – 18
SPB
600
190.99
198.00
14.00
36
18.00
19.00
± 0.40
± 0.8
900
Ld ≈ La – 22
SPC
1000
318.31
328.00
19.00
36
24.00
25.50
± 0.40
± 0.8
1500
Ld ≈ La – 30
Table 69: Optibelt KB Kraftbands with classical V-belts Measuring pulleys and force Groove angle
Groove depth
Mean distance
Tolerance
Σ Tol.
Force per rib
Inside length
da ± 0.13
Upper groove width b1 ± 0.13
α° ± 15’
tmin
e
e1)
e2)
Q (N)
Li (mm)
254
80.85
12.45
32
12.50
15.88
± 0.38
± 0.8
300
Li ≈ La – 36
B/HB
381
121.28
16.00
32
14.50
19.05
± 0.38
± 0.8
450
Li ≈ La – 62
C/HC
635
202.13
22.33
34
20.00
25.40
± 0.38
± 0.8
850
Li ≈ La – 75
D/HD
889
282.96
31.98
34
28.00
36.53
± 0.38
± 0.8
1000
Li ≈ La – 111
Outside circumference Ua = da · π
Outside diameter
A/HA
Section
1) Tolerance for the mean distance e between two adjacent grooves 2) The sum of all deviations from the nominal dimension e for all groove spacing on one pulley must not exceed the stated figure.
Table 70: Optibelt DK double section V-belts Measuring pulleys and force according to DIN 5289 Outside circumference Ua = d a · π
Outside diameter da
Upper groove width b1
Groove angle α° ± 20’
Groove depth tmin
Q (N)
AA/HAA
300
95.49
12.60
34
8
300
BB/HBB
400
127.32
16.20
34
10
450
CC/HCC
600
190.99
22.30
34
14
850
DD/HDD
900
286.48
32.00
34
20
1400
22 x 22
600
190.99
22.30
34
14
750
25 x 22
942
300.00
25.00
34
22
1200
Section
144
Force
Technical Manual V-Belts
Design Hints Length Tolerances
Table 71: Wedge belts DIN 7753 Part 1 Length tolerance (mm) Permissible deviation from pitch length Section
Set tolerance (mm) Permissible difference between the pitch lengths Ld of the belts in one and the same set on multiple belt drives Optibelt DIN 7753 / ISO 4184
Pitch length (mm) Optibelt wrapped
SPZ/XPZ SPA/XPA SPB/XPB SPC/XPC
> 630 > 900 > 1 250 > 2 000 > 3 150 > 5 000 > 8 000 > 10 000
≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤
900 1 250 2 000 3 150 5 000* 8 000 10 000 12 500
DIN DIN ±2 ±2 ±2 ±4 ±6 ±8
DIN 7753 ± ± ± ± ± ± ± ±
6 9 12 20 32 50 80 100
to to to to to to to to
± 9 ± 12 ± 20 ± 32 ± 50 ± 80 ± 100 ± 125
wrapped
raw edge
wrapped
raw edge
2 2 ±2 ±2 ±2 ±4 ±6 ±8
2 4 6 6 10*
2 2 2 4 6 10 16
2 4 6 6 10*
Table 72: Classical V-belts DIN 2215 Length tolerance (mm) Permissible deviation from pitch length Section
Set tolerance (mm) Permissible difference between the pitch lengths Ld of the belts in one and the same set on multiple belt drives Optibelt DIN 2215 / ISO 4184
Pitch length (mm) Optibelt
5 Y/6 8 Z/10; ZX/X10 A/13; AX/X13 B/17; BX/X17 20 C/22; CX/X22 25 D/32 E/40
≤ 250 > 250 ≤ 315 > 315 ≤ 400 > 400 ≤ 500 > 500 ≤ 630 > 630 ≤ 800 > 800 ≤ 900 > 900 ≤ 1 250 > 1 250 ≤ 1 600 > 1 600 ≤ 2 000 > 2 000 ≤ 2 500 > 2 500 ≤ 3 150 > 3 150 ≤ 4 000* > 4 000 ≤ 5 000 > 5 000 ≤ 6 300 > 6 300 ≤ 8 000 > 8 000 ≤ 10 000 >10 000 ≤ 12 500 >12 500 ≤ 15 000 >15 000 ≤ 20 000
wrapped
DIN 2215
wrapped
DIN DIN DIN DIN DIN DIN DIN DIN ±2 ±2 ±2 ±2 ±2 ±2 ±4 ±4 ±6 ±8 DIN DIN
+ 8/– 4 + 9/– 4 + 10/– 5 + 11/– 6 + 13/– 6 + 15/– 7 + 17/– 8 + 19/– 10 + 23/– 11 + 27/– 13 + 31/– 16 + 37/– 18 + 44/– 22 + 52/– 26 + 63/– 32 + 77/– 38 + 93/– 46 + 112/– 56 + 140/– 70 + 170/– 85
2 2 2 2 2 2 2 4 ±2 ±2 ±2 ±2 ±2 ±2 ±4 ±4 ±6 ±8 DIN DIN
raw edge
2 2 2 4 4 4 6 8 8*
wrapped
raw edge
2 2 2 2 2 2 2 4 4 4 8 8 12 12 20 20 32 32 48 48
2 2 2 2 2 2 2 4 4 4 8 8 12*
* Maximum production length for raw edge V-belts ≤ 3550 mm Optibelt S=C plus or Optibelt M=S V-belts can be used in sets without measuring or remeasuring. 145
Technical Manual V-Belts
Design Hints Length Tolerances
Table 73: Wedge belts USA Standard RMA/MTPA
Section
Length designation
Length tolerance (mm) Set tolerance (mm) Permissible deviation from Permissible deviation between the outside lengths La of the belts in one and the same outside lengths set on multiple belt drives Replace complete belt sets Replace complete belt sets
Outside length (mm)
Optibelt wrapped
3V/9N 3VX/9NX 5V/15N 5VX/15NX 8V/25N
265 ≤ 530 560 600 ≤ 800 ≤ 1 000 ≤ 1 120 ≤ 1 500 ≤ 2 000 ≤ 2 500 ≤ 3 150 ≤ 4 000 4 250 ≤ 4 750 ≤
500
800 1 000 1 060 1 400 1 900 2 360 3 000 3 750 4 500 5 000
673 ≤ 1 270 1 346 1 422 1 524 ≤ 2 032 2 032 ≤ 2 540 2 540 ≤ 2 692 2 845 ≤ 3 556 3 810 ≤ 4 826 5 080 ≤ 5 994 6 350 ≤ 7 620 8 001 ≤ 9 525 10 160 10 795 ≤ 11 430 12 065 ≤ 12 700
RMA/MPTA ± 8 ± 10 ± 10 ± 10 ± 13 ± 15 ± 15 ± 20 ± 20 ± 20 ± 25 ± 25 ± 30 ± 30
acc. RMA/MPTA
± 2 ± 2 ± 2 ± 2 ± 2 ± 2 ± 2 ± 4 ± 4 ± 6 ± 8 ± 8 ± 12
Optibelt wrapped raw edge 4 ± 2 ± 2 ± 2 ± 2 ± 2 ± 2 ± 2 ± 4 ± 4 ± 6 ± 8 ± 8 ± 12
RMA/MPTA
4 4 6 6 6 6 10*
4 4 6 6 6 6 10 10 10 16 16 16 16 24
Table 74: Double section V-belts
Section
AA/HAA BB/HBB CC/HCC DD/HDD 22 x 22 25 x 22
Length tolerance (mm) Permissible deviation of the reference lengths
Set tolerance (mm) Permissible difference between the reference lengths of the double section V-belts in one and the same set on multiple belt drives
+ 8/– 16 + 9/– 18 + 11/– 22 + 13/– 26 + 15/– 30 + 18/– 36 + 22/– 44 + 26/– 52 + 32/– 64 + 39/– 78
4 4 5 6.3 8 10 12.5 16 20 25
Reference length (mm)
1 250 < 1 320 1 320 < 1 700 1 700 < 2 120 2 120 < 2 650 2 650 < 3 350 3 350 < 4 250 4 250 < 5 300 5 300 < 6 700 6 700 < 8 500 8 500 < 10 000
Table 75: Kraftbands with high performance wedge belts and classical V-belts Section 3V/9J; 3VX/9JX 5V/15J; 5VX/15JX 8V/25J SPZ; SPA; SPB; SPC A/HA B/HB C/HC D/HD 146
Length and set tolerances USA Standard RMA/MPTA BS/DIN/ISO BS/DIN/ASAE * Maximum production length for raw edge V-belts ≤ 3550 mm
Technical Manual V-Belts
Design Hints Conversion Factors
Optibelt SK high performance wedge belts BS 3790/DIN 7753 Part 1 Section
Cross-section bxh≈
Section base width bu ≈
Datum width bd
SPZ
9.7 x 8
4.2
8.5
SPA
12.7 x 10
5.8
11.0
SPB
16.3 x 13
7.3
14.0
SPC
22.0 x 18
9.6
19.0
Belt length Nominal Outside length Datum length length Ld La
Datum length Ld
La ≈ L d La ≈ L i La ≈ L d La ≈ L i La ≈ L d La ≈ L i La ≈ L d La ≈ L i
+ 13 + 51 + 18 + 63 + 22 + 82 + 30 + 113
Inside length Li Li ≈ Ld Li ≈ La Li ≈ L d Li ≈ La Li ≈ Ld Li ≈ La Li ≈ L d Li ≈ La
— — — —
– 38 – 51 – 45 – 63 – 60 – 82 – 83 – 113
Recommended minimum pulley diameter (mm)
Datum diameter dd
Belt weight (≈ kg/m)
63
0.074
90
0.123
140
0.195
224
0.377
63
0.074
140
0.195
335
0.575
Optibelt SK high performance wedge belts USA Standard RMA/MTPA 3V/9N
9.0 x 8
4.2
—
5V/15N
15.0 x 13
7.3
—
8V/25N
25.0 x 23
9.6
—
Outside length La
—
Ld ≈ La –
4∗
Li ≈ La – 42
—
Ld ≈ La – 11∗
Li ≈ La – 71
—
—
Li ≈ La – 120
Outside diameter da
∗ The conversion factors Ld to La is used when a section according to DIN 7753 Part 1 is to be replaced by the corresponding section according to RMA/MPTA. Optibelt Super X-POWER M=S wedge belts – raw edge, moulded cogged – BS 3790/DIN 7753 Part 1 XPZ
9.7 x 8
4.2
8.5
XPA
12.7 x 10
5.8
11.0
XPB
16.3 x 13
7.3
14.0
XPC
22.0 x 18
9.6
19.0
Datum length Ld
La ≈ Ld La ≈ L i La ≈ L d La ≈ L i La ≈ L d La ≈ L i La ≈ L d La ≈ L i
+ 13 + 51 + 18 + 63 + 22 + 82 + 30 + 113
Li ≈ Ld Li ≈ La Li ≈ L d Li ≈ La Li ≈ Ld Li ≈ La Li ≈ L d L i ≈ La
— — — —
– 38 – 51 – 45 – 63 – 60 – 82 – 83 – 113
Datum diameter dd
56
0.065
71
0.111
112
0.183
180
0.340
Optibelt Super X-POWER M=S wedge belts – raw edge, moulded cogged – USA Standard RMA/MTPA 3VX/9NX
9.0 x 8
4.2
—
Outside length La
—
Ld ≈ La –
4∗
Li ≈ La – 42
Outside diameter da
56
0.065
112
0.183
40
0.062
63
0.099
90
0.165
140
0.276
—
20
0.018
—
28
0.026
—
40
0.042
—
50
0.064
71
0.109
112
0.196
—
160
0.266
—
180
0.324
—
250
0.420
—
355
0.668
—
500
0.958
— Ld ≈ La – 11∗ Li ≈ La – 71 5VX/15NX 15.0 x 13 7.3 — ∗ The conversion factors Ld to La is used when a section to BS 3790 or DIN 7753 Part 1 is to be replaced by the corresponding section to RMA/MPTA.
Optibelt SUPER TX M=S V-belts – raw edge, moulded cogged ZX/X10
10.0 x 6
5.9
8.5
AX/X13
13.0 x 8
7.5
11.0
BX/X17
17.0 x 11
9.4
14.0
CX/X22
22.0 x 14
12.3
19.0
Datum length Ld
La ≈ L i La ≈ L d La ≈ L i La ≈ L d La ≈ L i La ≈ L d La ≈ L i La ≈ L d
+ + + + + + + +
38 16 50 20 69 29 88 30
La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld La ≈ L i La ≈ Ld
+ 19 + 8 + 25 + 10 + 31 + 12 + 38 + 16 + 50 + 20 + 69 + 29 + 79 + 31 + 88 + 30 + 100 + 39 + 126 + 51 + 157 + 77
Li ≈ L d Li ≈ La Li ≈ L d Li ≈ La Li ≈ L d Li ≈ La Li ≈ L d Li ≈ La
— — — —
– – – – – – – –
22 38 30 50 40 69 58 88
Datum diameter dd
Optibelt VB classical V-belts BS 3790/DIN 2215 5
5.0 x 3
2.8
4.2
Y/6
6.0 x 4
3.3
5.3
8
8.0 x 5
4.5
6.7
Z/10
10.0 x 6
5.9
8.5
A/13
13.0 x 8
7.5
11.0
B/17
17.0 x 11
9.4
14.0
20
20.0 x 12.5
11.4
17.0
C/22
22.0 x 14
12.3
19.0
25
25.0 x 16
14.0
21.0
D/32
32.0 x 20
18.2
27.0
E/40
40.0 x 25
22.8
32.0
Datum length Ld
Ld ≈ Li Ld ≈ L a Ld ≈ Li Ld ≈ La Ld ≈ Li Ld ≈ La Ld ≈ Li Ld ≈ La Ld ≈ Li Ld ≈ La Ld ≈ Li Ld ≈ La Ld ≈ Li Ld ≈ La Ld ≈ Li Ld ≈ La L d ≈ Li Ld ≈ La L d ≈ Li Ld ≈ La L d ≈ Li Ld ≈ La
+ – + – + – + – + – + – + – + – + – + – + –
11 8 15 10 19 12 22 16 30 20 40 29 48 31 58 30 61 39 75 51 80 77
— —
Datum diameter dd
147
Technical Manual V-Belts
Design Hints Conversion Factors
Optibelt KB Kraftbands with high performance wedge belts to ISO 5290/USA Standard RMA/MTPA Section
Height h≈
Bottom width bu ≈ of the single belts
3V/9J
9.9
4.2
5V/15J
15.1
7.3
8V/25J
25.5
9.6
Belt length Nominal length
Outside length La
Outside length La
Datum length Ld
Inside length Li
—
—
Li ≈ La – 42
—
—
Li ≈ La – 71
—
—
Li ≈ La – 120
—
—
Recommended minimum pulley diameter (mm) Outside diameter da
Rib weight (≈ kg/m)
67
0.122
180
0.252
315
0.693
80
0.120
Optibelt KB Kraftbands with high performance wedge belts SPZ
10.5
5.4
SPA
12.5
7.0
SPB
15.6
8.8
SPC
22.6
9.3
La ≈ Ld + 13 Datum length Ld
La ≈ Ld + 18
—
—
La ≈ Ld + 22
—
—
La ≈ Ld + 24
—
—
Datum diameter dd
112
0.166
160
0.261
250
0.555
Optibelt KB Kraftbands USA Standard RMA/MTPA A
9.9
7.5
B
13.0
9.4
C
16.2
12.3
D
22.4
18.2
Datum length Ld
La ≈ Li + 36
Ld ≈ Li + 30
—
La ≈ Li + 62
Ld ≈ Li + 40
—
80
0.163
125
La ≈ Li + 75
Ld ≈ Li + 58
—
0.266
200
0.447
La ≈ Li + 111
Ld ≈ Li + 75
—
355
0.798
80
0.163
125
0.266
200
0.447
355
0.798
Datum diameter dd
Optibelt KB Kraftbands USA Standard ASAE S 211. … HA
9.9
7.5
HB
13.0
9.4
HC
16.2
12.3
HD
22.4
18.2
Outside length La
—
—
Li ≈ La – 36
—
—
Li ≈ La – 62
—
—
Li ≈ La – 75
—
—
Li ≈ La – 111
Outside diameter da
∗ The width of the kraftband is a function of the number of ribs. Optibelt DK double section V-belt DIN 7722/ISO 5289 Section
AA/HAA
Cross-section bxh≈
Section bottom width bu ≈
13 x 10
Datum length
—
BB/HBB
17 x 13
CC/HCC
22 x 17
—
DD/HDD
32 x 25
—
—
Recommended minimum pulley diameter (mm)
Belt length
Reference length ≈ mean length – 4 Reference length
Reference length ≈ mean length – 8 Reference length ≈ mean length + 3
Outside diameter da
Reference length = mean length
Belt weight (≈ kg/m)
80
0.150
125
0.250
224
0.440
355
0.935
280
0.511
280
0.625
Optibelt DK double section V-belt DIN 7722/ISO 5289s 22 x 22
22 x 22
—
25 x 22
25 x 22
—
Reference length
Reference length = mean length Reference length = mean length
Outside diameter da
Optibelt FB automotive fan belts Section
Cross-section bxh≈
Section bottom width bu ≈
9.5
10 x 8
4.9
8.5
12.5
13 x 10
5.8
11.0
Datum width bd
Belt length Nominal Outside length Datum length Ld length La Outside length La
Inside length Li
—
Ld ≈ La – 13
Li ≈ La – 51
—
Ld ≈ La – 18
Li ≈ La – 63
Recommended minimum pulley diameter (mm) Agreed between vehicle and belt manufacturers
Belt weight (≈ kg/m) 0.070 0.118
Optibelt Marathon 1/Marathon 2 M=S automotive V-belts – raw edge, moulded cogged, maintenance free AVX 10
10 x 8
4.9
8.5
AVX 13
13 x 10
5.8
11.0
148
Outside length La
—
Ld ≈ La – 13
Li ≈ La – 51
—
Ld ≈ La – 18
Li ≈ La – 63
Agreed between vehicle and belt manufacturers
0.076 0.118
Technical Manual V-Belts
Special Purpose Conveyor Belts Product Description
Optibelt have developed a series of special purpose conveyor belts for the economical transportation of goods in a varied range of applications.
Applications
● Optibelt PKR endless V-belts according to DIN 2215 with patterned top surfaces ● Optibelt PKR endless V-belts according to DIN 2215 with light coloured fabric cover and patterned top surfaces within the standard belt height ● Optibelt KB Kraftbands with patterned top surfaces ● Optibelt PKR open-ended V-belts to DIN 2216 with patterned top surfaces ● Optibelt FK open-ended conveyor belting, punched ● Optimax HF high performance flat belts
For transporting:
Construction/Quality
● sheet glass
Optibelt special purpose conveyor belts consist of the base belt and the top surface. These parts are specially vulcanised to each other to provide the maximum resistance to separation during service. The multiplicity of applications necessitate constructions with numerous patterns which can be supplied in two different qualities. Both the pattern and the surface quality should be chosen to suit the specific application. Table 76 Design/ Colour
Temperature resistance (°C)
SBR-NR/ light coloured
– 40 to + 70
CR/black
– 25 to + 100
Hardness Oil (Shore A) resistance Marking ≈ 55* ≈ 65** ≈ 65
no
no
Here are just a few examples from the wide range of applications in which Optibelt conveyor belts are used successfully. ● doors, cupboard components, veneer and plastic panels in the woodworking industry ● body parts and sharp-edged sheet metal panels in the automobile industry ● cardboard and boxes in the packaging industry ● roof tiles, concrete slabs and paviors in cement works ● tiles ● parcels ● bowling alley balls In addition to conveyor applications, these belts are also used for: ● labelling and closing tins, bottles and jars in the preserves industry ● lifting, topping and sorting beet, potatoes, lettuce, cauliflower and sprouts and many other vegetables Because of their single belt characteristics and high permissible surface loading, Optibelt KB Kraftbands are especially suitable in conveyor systems and lifting platforms for: ● transporting cargo container ● loading and unloading aeroplanes and railway wagons
limited
yes
● stowing and discharging ships cargoes
CR/black is supplied as standard. We would be pleased to supply details of other designs. SBR = styrene butadiene rubber NR = natural rubber CR = chloroprene rubber * ≈ 55 for surface over the standard height ** ≈ 65 for surface within the standard height
Optibelt KB with top surface
Properties Special surfaced belts are used in place of expensive conventional type conveyor belts. They run individually, or in sets arranged adjacent to each other, transporting goods horizontally, or up or down inclines. Vertical conveying is also possible if the belts are arranged top surface to top surface gripping the articles between them.
149
Technical Manual V-Belts
Special Purpose Conveyor Belts Design Guidelines
The diameter and the number of support rollers required depends upon the length of the conveying span and the weight and size of the goods to be transported.
Drive and Guide Pulleys The drive and guide pulleys should be V-grooved pulleys. The minimum diameters should be selected in accordance with the standard recommendations for V-belts and kraftbands. See the chapter on V-pulleys.
Support tracks, generally made of plastic, are either flat or with a key seat to improve guidance of the conveyor belt. As is the case with the support rollers, the grooves must be of an adequate width.
Due to the relatively low transporting speed (experience shows that it is usually less than 1 m/s) and the resulting low flex rate, pulley diameters can be reduced to approx. 10 % below the recommended minimum. With greater reduction, there is the danger that the top surface separates from the base V-belt.
Adjustment of the Drive Centre Distance Allowances The tables on pages 76 to 78 show the drive centre distance allow-ances applicable to special purpose conveyor belts and kraftbands.
The driver pulley should be arranged at the discharge end of the conveyor so that the goods are pulled along. Support Rollers/Tracks
Options for Tensioning
In most cases, support rollers or tracks are required to prevent the belt from sagging under load.
An adequate belt tension is essential to the reliable operation of the conveyor system. Tension is applied by adjusting the drive centre distance or, when the centres are fixed, by the use of tension idlers.
Support rollers may be flat faced or V-pulleys. The dimensions of the pulley grooves should be such that the conveyor belt is supported on its base in the groove bottom, and can only run with one edge in contact with the groove flank, and as a consequence does not become trapped in the groove.
When idlers are employed, they should be arranged inside the belt if possible, as otherwise the alternating flexing of the belt will reduce its service life.
optibelt KB Kraftbands with Patterned Top Surface
PKR 2 Height of surface
Groove width (mm)
Design/Colour
Pattern
Standard (mm)
Maximum (mm)
(mm)
PKR 0
3
5
—
—
SBR-NR/light
PKR 1
3
5
10
—
CR/black
PKR 2
3
5
—
—
PKR 3
5
—
—
3.7
Table 77 Section 3V/9J 5V/15J 8V/25J SPB
Cross-sectional dimensions of the base belt (mm)
Kraftband height without top surface (mm)
9x 8 15 x 13 25 x 23 16.3 x 13
9.9 15.1 25.5 15.6
A/HA
13 x 8
9.9
B/HB C/HC
17 x 11 22 x 14
13.0 16.2
La = outside length; Li = inside length; Ld = datum length
150
Pitch
PKR 3
— —
Hardness (Shore A)
Oil resistance
Marking
– 40 to + 70
≈ 55
no
no
– 25 to + 100
≈ 65
limited
yes
SBR = styrene butadiene rubber NR = natural rubber CR = chloroprene rubber
Length designation
500 ≤ 1 400 500 ≤ 3 550 1 000 ≤ 4 750 — —
Temperature resistance (°C)
Length (mm)
1 400 1 400 2 540 2 400 1 400 2 850 1 400 2 286
≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤
3 556 La 9 017 La 12 065 La 6 000 Ld 5 000 Li 8 000 Li 7 100 Li 7 100 Li
Max. production length (mm)
PKR 0
PKR 1
PKR 2
PKR 3
4 250 10 000 15 000 6 000 8 000 on request 10 000 12 000
● ● ● ● ● — ● ●
● ● ● ● ● — ● ●
● ● ● ● ● — ● ●
— — — — — ● — —
Pattern type
Range: see page 30, 31 and 33. Minimum order quantity on request.
Technical Manual V-Belts
Special Purpose Conveyor Belts optibelt PKR Endless V-Belts and optibelt KB Kraftband with Patterned Top Surface
PKR 0
PKR 1
PKR 2
Table 78
PKR 5
Table 79 Heigth of top surface
Pattern
PKR 0
Standard (mm)
maximum (mm)
Pitch (mm)
Groove width (mm)
3
5
—
—
PKR 1
3
5
10
—
PKR 2
3
5
—
—
PKR 5
5
—
13
—
Temperature resistance (°C)
Design/Colour
SBR-NR/light CR/black
Hardness (Shore A)
– 40 to + 70 ≈ 55*/65** – 25 to + 100 ≈ 65
Oil resistance
Marking
no limited
no yes
SBR = styrene butadiene rubber NR = natural rubber * ≈ 55 for top surface above the standard height CR = chloroprene rubber ** ≈ 65 for top surface within the standard height
Table 80
Table 81 Top surfaces 3 or 5 mm above the standard height
Top surfaces above the standard height
StandSection ard height (mm)
Minimum order quantities for V-belts patterned top surfaces PKR 0; PKR 1; PKR 2; PKR 5
Pattern type
Standard inside length (mm) PKR 0
PKR 1
PKR 2 PKR 5
for standard range (as listed on pages 24 to 27)
for intermediate length (sizes not listed in this technical manual)
Top surface within the standard height
Standard inside length (mm)
Pattern type
PKR 0
PKR 2
Minimum quantitiy
8.0
1 200 ≤ 5 0001)
●
●
●
—
18 pcs
31 pcs
3 550 ≤ 10 0001)
●
●
10
B/17 11.0
1 200 ≤ 2 0001) 2 001 ≤ 7 1001)
● ●
● ●
● ●
— —
15 pcs 15 pcs
50 pcs 42 pcs
2 850 ≤ 21 0001)
●
●
10
20
12.5
1 850 ≤ 2 0002) 2 001 ≤ 8 0002)
● ●
● ●
● ●
— —
13 pcs 13 pcs
21 pcs 36 pcs
3 550 ≤ 21 0001)
●
●
8
C/22 14.0
1 850 ≤ 2 0002) 2 001 ≤10 0002)
● ●
● ●
● ●
— —
12 pcs 12 pcs
57 pcs 48 pcs
3 550 ≤ 21 0001)
●
●
8
25
16.0
1 850 ≤ 2 0002) 2 001 ≤10 0002)
● ●
● ●
● ●
— —
11 pcs 11 pcs
51 pcs 42 pcs
2 850 ≤ 21 0001)
●
●
8
D/32 20.0
2 850 ≤12 5002) 2 850 ≤12 5002)
● —
● —
● —
— ●3)
9 pcs 8 pcs
22 pcs 8 pcs
2 850 ≤ 21 0001)
●
●
6
—
—
—
—
on request
on request
4 000 ≤ 21 0001)
●
●
5
A/13
E/40 25.0
—
1) Maximum production length on request 3) Only available in CR/black
2) Maximum production length 21000 mm Section Z/10 on request
When ordering, please state the overall height of the V-belt including top surface. This is indicated by the section designation as follows.
Section B/17 – top surface within the standard height = 17 x 11 Section B/17 – with additional 3 mm top surface = 17 x 14 Section B/17 – with additional 5 mm top surface = 17 x 16
151
Technical Manual V-Belts
Special Purpose Conveyor Belts optimat PKR Open-Ended V-Belting according to DIN 2216 with Patterned Top Surface
PKR 0
PKR 1
PKR 2
Table 82 Section
PKR 0 CR/red brown
PKR 0 SBR-NR/light coloured
PKR 1
PKR 2
S
P
S
P
S
P
S
P
Z/10
●
●
—
—
—
—
—
—
A/13
●
●
●
●
●
●
●
●
B/17
●
●
●
●
●
●
●
●
C/22
●
●
●
●
●
●
●
●
25
●
●
●
●
●
●
●
●
D/32
●
●
●
●
●
●
—
—
S = Standard; P = Polyester
Table 83 Pattern types
PKR 0 PKR 1 A/13; B/17; C/22
Table 84 Top surface height
Pitch
Standard (mm)
Max. (mm)
(mm)
2
3
—
3
3
10
Temperature resistance (°C)
Hardness Oil (Shore A) resistance Marking
PKR 0 CR/red brown
– 25 to + 100
≈ 50
limited
no
SBR-NR/light coloured
– 40 to + 70
≈ 45
no
no
NR/red brown – 40 to + 70
≈ 48
no
no
SBR-NR/light coloured
– 40 to + 70
≈ 45
no
no
CR/red brown
– 25 to + 100
≈ 50
limited
no
CR/black
– 25 to + 100
≈ 68
limited
yes
PKR 1 and PKR 2
PKR 1 25; D/32
5
5
10
PKR 2
3
—
—
152
Design/ Colour
Technical Manual V-Belts
Special Purpose Conveyor Belts optibelt RR Plastic Round Section Belting, optibelt KK Plastic V-Belting
Section
8 Z/10 A/13 B/17 C/22
Width x Height (mm)
8x 5 10 x 6 13 x 8 17 x 11 22 x 14
Length of roll (m)
Diameter (mm)
Length of roll (m)
Weight (≈ kg/m)
50 50 50 50 25
2 3 4 5 6 7 8 10 12 15
200 200 200 200 100 100 100 100 50 50
0.004 0.009 0.016 0.024 0.035 0.048 0.064 0.096 0.132 0.211
Optibelt RR round section belting and Optibelt KK plastic V-belting are especially suited as transporting elements in the food industry, in ceramic industry plants, and for applications where oils and chemicals might be present. They can also be used as drive elements for specific ranges of capacity. Optibelt supplies different qualities that can be easily distinguished due to their different colours.
Minimum lengths for endless connection: Round section belting: 200 V-belting: Section Z/10 to A/13: 300 Section B/17: 500 Section C/22: 700
mm mm mm mm
optibelt KK Plastic V-Belting with Special Top Surface (base belt white, 92 Shore A) Plastic V-Belting with Pointed Top Profile
Supergrip
Linatex
HV 2-Laminate
Section
Width x Height (mm)
Length of roll (m)
8 Z/10 A/13 B/17 C/22
8x 5 10 x 6 13 x 8 17 x 11 22 x 14
50 50 50 50 25
Form 1
Form
1 2 1 2 1 2
Form 2
Section
A/13 A/13 B/17 B/17 C/22 C/22
Length of roll (m)
25 25 25 25 25 25 153
Technical Manual V-Belts
Annex Table of Standards
Federal Republic of Germany DIN DIN DIN DIN DIN DIN DIN DIN
109 Sheet 1 – 109 Sheet 2 – 111 – 111 Sheet 2 – 2211 Sheet 1 – 2211 Sheet 2 – 2211 Sheet 3 – 2215 –
Drive elements, circumferential speeds Drive elements, drive centre distances for V-belt drives Flat belts; dimensions, nominal torque Flat belts – specification for electrical machines V-belts; dimensions; material V-belts; testing the grooves Wedge belts; specification for electrical machines Endless V-belts, classical sections; minimum pulley datum diameters, inside and datum belt lengths DIN 2216 – Open-ended V-belting; dimensions DIN 2217 Sheet 1 – V-belt pulleys for classical sections; dimensions, material DIN 2217 Sheet 2 – V-belt pulleys for classical sections; groove checking DIN 2218 – Endless V-belts, classical sections for industrial engineering applications; drive design, power ratings DIN 7716 – Natural and synthetic rubber products; storage, cleaning and maintenance requirements DIN 7719 Part 1 – Endless variable speed belts for industrial speed changers; belts and groove sections of the corresponding pulleys DIN 7719 Part 2 – Endless variable speed belts for industrial speed changers; measuring the shaft centre distance fluctuation DIN 7721 Part 1 – Synchronous belt drives, metric pitch; timing belts DIN 7721 Part 2 – Synchronous belt drives, metric pitch; tooth profile for synchronous pulleys DIN 7722 – Endless hexagonal belts for agricultural machinery and groove sections of the corresponding pulleys DIN 7753 Part 1 – Endless wedge belts for industrial engineering applications; dimensions DIN 7753 Part 2 – Endless wedge belts for industrial engineering applications; drive design and power ratings DIN 7753 Part 3 – Endless wedge belts for automotive engineering applications; dimensions DIN 7753 Part 4 – Endless wedge belts for automotive engineering applications; fatigue testing DIN 7867 – Ribbed belts and pulleys DIN/ISO 5290 – Joined wedge belts section 9J; 15J; 20J; 25J DIN/ISO 5294 – Timing belt drives; pulleys DIN/ISO 5296 – Timing belt drives; belts DIN 22100-7 – Working conditions for plastics for use in the mining industry, part 5.4 V-belts DIN EN 60695-11-10 – Testing for the evaluation of flammability
ISO International Organisation for Standardisation ISO ISO ISO ISO ISO ISO ISO
22 63 99 100 155 254 255
– – – – – – –
ISO 1081 ISO 1604
– –
ISO ISO ISO ISO
1813 2230 2790 3410
– – – –
ISO 4183 ISO 4184 ISO 5256
– – –
ISO 5287 ISO 5288
– –
154
The widths of flat belts and corresponding pulleys Flat belt drives; lengths Diameter of pulleys for flat belts Crown height of pulleys for flat belts Drive pulleys; limits for setting drive centre distances Type, quality and balancing of pulleys Pulleys for classical V-belts and wedge belts; geometrical groove checking Drives with V-belts and grooved pulleys; terminology Endless variable speed belts and pulleys for industrial engineering applications Endless V-belts; electrical conductivity See DIN 7716 Wedge belt drives for the automotive industry; dimensions Endless variable speed belts and pulleys for agricultural applications Grooved pulleys for classical V-belts and wedge belts Classical V-belts and wedge belts; lengths Synchronous belt drive; belt tooth pitch coding Part 1 MXL; XL; L; H; XH; XXH Part 2 MXL; XXL metric sizes Wedge belt drives for the automotive industry; fatigue testing Timing belt drives; definitions
ISO 5289 ISO 5290 ISO 5291 ISO 5292 ISO ISO ISO ISO ISO
5294 5295 5296 8370-1 8370-2
ISO/DIS 8419 ISO/CD 9010 ISO/CD 9011 ISO 9563 ISO 9980 ISO 9981 ISO 9982 ISO 9982 ISO 11749 ISO 12046 ISO/CD 13050 ISO/CD 17396
– Endless double section belts and pulleys for agricultural applications – Joined wedge belt pulleys; groove sections 9J; 15J; 20J; 25J; – Joined classical V-belt pulleys; groove sections AJ; BJ; CJ; DJ – Industrial V-belt drives; calculating ratings and drive centre distances – Synchronous belt drives; pulleys – Timing belts; calculating ratings and drive centre distances – Synchronous belt drives; belts – Dynamic testing for determining the effective area with V-belts – Dynamic testing for determining the effective area with ribbed belts – Joined wedge belt drives, lengths in the datum system – Synchronous belt drives – belts for the automotive industry – Synchronous belt drives – pulleys for the automotive industry – Anti-static endless timing belts; electrical conductivity; characteristics and test methods – Belt drives; V-belt pulleys; checking the geometry of the pulley grooves – Belt drives – pulleys and ribbed belts for the automotive industry; section PK – Belt drives – pulleys and ribbed belts for industrial applications; geometric data PH, PJ, PK, PL and PM – See DIN 7867 – Belt drives, V-ribbed for automotive applications, life testing – Synchronous automotive belt drives, physical properties – Synchronous curvilinear belt drives – Synchronous metric belt drives, sctions T and AT
United Kingdom BS 3733 BS 3790 BS AU 150
USA
RMA/MPTA IP-20 RMA/MPTA IP-21 RMA/MPTA IP-22 RMA/MPTA IP-23 RMA/MPTA IP-24 RMA/MPTA IP-25 RMA/MPTA IP-26 RMA/MPTA IP-27 ASAE S 211. ... SAE J636b SAE J637
– Endless classical section V-belts for agricultural applications – Drives with endless wedge belts and V-belts – Endless wedge belts for the automotive industry
– – – – – – – – – – –
Classical V-Belts and Sheaves (A; B; C; D; Cross Sections) Double (Hexagonal) Belts (AA; BB; CC; DD Cross Sections) Narrow Multiple V-Belts (3V; 5V; and 8V Cross Sections) Single V-Belts (2L; 3L; 4L; and 5L Cross Sections) Synchronous Belts (MXL; XL; L; H; XH; and XXH Belt Sections) Variable Speed V-Belts (12 Cross Sections) V-Ribbed Belts (PH; PJ; PK, PL and PM Cross Sections) Curvilinear Toothed Synchronous Belts (8M – 14M Pitches) V-Belt Drives for Agricultural Machines V-Belts and Pulleys Automotive V-Belt Drives
Technical Manual V-Belts
Notes
155
Technical Manual V-Belts
Notes
156
Technical Manual V-Belts
Data Sheet for Calculation/Check of Drive
.
.
Optibelt GmbH
Company
Corveyer Allee 15 37671 Höxter/Germany Tel. +49 (0 )5271/ 62 -1 Fax +49 (0 )52 71/ 9762 00 info@optibelt.com www.optibelt.com (stamp) Fitted with:
For test
New drive
For initial production
Existing drive
For series production
Usage ____________ belts/year
Number
Prime Mover Type
(e.g. electric motor, diesel engine 3 cyl.)
______________________________
Type
___________________________
Start:
loaded
unloaded
Nature of load:
constant
pulsating
(e.g. MA = 1.8 MN)
(e.g. star delta)
(e.g. lathe, compressor)
________________________________________
_________________________________
Operational hours per day _______________________________ hours Number of starts _____________
per hour
per day
Rational reverses _____________
per minute
per hour
Power:
Manufacturer
Driven Machine
Size of starting torque Method of starting
Size
P normal ________________________________________kW
shock Rating:
P normal __________________________________kW
P maximum ______________________________________kW
P maximum ________________________________kW
or maximum torque _______________ Nm at n1 _____________r.p.m.
or maximum torque _______________ Nm at n2 _____________r.p.m.
Speed n1 ______________________________________________r.p.m.
Speed
Position of shafts:
horizontal
n2 _____________________________________r.p.m.
vertical
angled
n2 min __________________________________r.p.m.
<) _____________________ °
n2 max __________________________________r.p.m.
Maximum allowable shaft loading Sa max ______________________ N
Maximum allowable shaft loading Sa max ________________ Newton
Datum or outside diameter of pulley:
Datum or outside diameter of pulley:
dd1
________________ mm
da1
__________________mm
dd1 min ________________ mm
da1 min __________________mm
dd1 max ________________ mm
da1 max __________________mm
Pulley face width b2 max ____________________________________mm Speed ratio
i
Centre distance
a _______________ mm
Tension/guide pulleys:
__________________
dd2
________________ mm
da2
__________________mm
dd2 min ________________ mm
da2 min __________________mm
dd2 max ________________ mm
da2 max __________________mm
Pulley face width b2 max ____________________________________mm imin
___________
imax _________________
amin
________ mm
amax _____________ mm
inside
in drive slack side
outside
in drive tight side
dd __________________mm V-pulley
movable
da __________________mm Flat pulley
fixed
Operating Conditions: Ambient temperature
________________________________ °C minimum
(e.g. spring loaded)
______
________________________________ °C maximum Exposure to oil
(e.g. oil mist, droplets)
___________________________
water
(e.g. spray)
__________________________________
acid
(type, concentration, temperature)
dust
(type)
____________________
______________________________________
Special conditions: Where the drive is subjected to unusual conditions, e.g. inside or outside idler pulleys, three or multi-pulley drives, as well as drives with reverse rotational direction, sketches are required. Please use the back of this data sheet for sketches.
157
Technical Manual V-Belts
Drive description:
158
Technical Manual V-Belts
Data Sheet for Calculating/Checking Conveyor Systems
.
.
Optibelt GmbH
Company
Corveyer Allee 15 37671 Höxter/Germany Tel. +49 (0 )5271/ 62 -1 Fax +49 (0 )52 71/ 9762 00 info@optibelt.com www.optibelt.com (stamp) For one off use
New drive
For series production
Existing drive
Fitted with: Number
Section length
Top surface Manufacturer
Usage __________ belts/year Prime Mover Type
(e.g. geared motor)
__________________________________________
Size of starting torque Method of starting
(e.g. MA = 1.8 MN)
(e.g. star delta)
___________________________
_________________________________
Start
under load unloaded
Operational hours per day
_________
Number of starts _____________ Power:
_______________________ hours per hour
per day
Supporting pulleys
V-pulleys
Flat pulleys
Bearings
plain
ball
Number ______________________________________________ pieces dd ____________________ mm Support rails Material
flat
(e.g. steel, plastic)
V-grooved
________________________________________
P normal ________________________________________kW P maximum ______________________________________kW
or maximum torque _______________ Nm at n1 _____________r.p.m. Rotational speed n1 _____________________________________r.p.m. Rotational speed n2 _____________________________________r.p.m. Conveying speed
min. __________________________ m/min max. _________________________ m/min
Continuously variable
yes no
Material to be conveyed Type
(e.g. concrete slabs)
__________________________________________
Condition of the corners
________________ mm
da1
__________________mm
dd1 min ________________ mm
da1 min __________________mm
dd1 max ________________ mm
da1 max __________________mm
round sharp
Conditions of the contact surface
rough smooth
Conveyed
horizontally
vertically
inclined
Maximum allowable shaft loading Sa max _________________ Newton Datum or outside diameter of the driver pulley: dd1
da ______________________mm
Spacing t _____________________________________________ pieces
<) ____________________ °
downwards
upwards
Dimensions l x w x h (mm) ___________x ___________x ___________ Motion
continuous
cycled
collected
Datum or outside diameter of the guide pulleys: dd2
________________ mm
da2
__________________mm
dd2 min ________________ mm
da2 min __________________mm
dd2 max ________________ mm
da2 max __________________mm
Speed ratio i ______________ imin ____________ imax ____________ Position of shafts:
horizontal angled
vertical <) _____________________ °
Overall width of the system _________________________________mm Drive centre distance a ______ mm amin ______ mm amax _____ mm Allowance for tensioning
–
mm __________ + mm
Tension/guide pulleys:
inside
Operating Conditions Ambient temperature
____________________________ °C minimum ____________________________°C maximum
Exposure to oil
(e.g. oil mist, droplets)
_______________________
water
(e.g. spray)
acid
(type, concentration, temperature)
dust
(type)
In the open air
_____________________________ ________________
_________________________________ yes no
outside dd ______________________ mm
da ______________________mm
The space overleaf is provided for sketches of the drive arrangement. Please include the dimensions of all the pulleys and idlers used in the proposed design.
159
Technical Manual V-Belts
Reproduction forbidden. Any infringements will be prosecuted under the copyright act law. Subject to correction. The Optibelt offer is intended for specialised trade only. Optibelt recommends that its products be used exclusively according to the recommendations in Optibelt documentation. Due to safety recommendations, the application of Optibelt drive belts in planes or in systems similar to planes is not permissible. Optibelt does not assume any liability if its products are used in applications for which they have not been designed or manufactured. For the rest, Optibelt refers to its General Terms and Conditions. The valid terms and conditions are available at www.optibelt.com
160
Š Arntz Optibelt Group 416431/1106
Notes on the proposed conveyor arrangement:
optibelt VB Klassische Keilriemen
Classical V-belts
optibelt SK Schmalkeilriemen Wedge belts
optibelt RED POWER II Hochleistungs-Schmalkeilriemen, wartungsfrei High performance wedge belts, maintenance free
optibelt Super X-POWER M=S Keilriemen, flankenoffen, formgezahnt V-belts, raw edge, moulded cogged
optibelt KB Kraftbänder Kraftbands
optibelt KB RED POWER II Hochleistungs-Kraftbänder High performance kraftbands
optibelt KBX Kraftbänder, flankenoffen Kraftbands, raw edge
optibelt PKR Endlose Keilriemen mit Auflage Endless V-belts with special top surfaces
optibelt SUPER VX Breitkeilriemen, flankenoffen, formgezahnt Variable speed belts, raw edge, moulded cogged
optibelt DK Doppelkeilriemen Double section V-belts
optibelt SUPER DVX Doppel-Breitkeilriemen, flankenoffen, formgezahnt Double section variable speed belts, raw edge, moulded cogged
optibelt ZR Zahnflachriemen Timing belts
optimat OE Endliche Keilriemen DIN 2216, gelocht Open-ended V-belting, punched
optibelt RR Kunststoffrundriemen Plastic round section belting
optibelt OMEGA Zahnflachriemen, wartungsfrei Timing belts, service-free
optibelt RB Rippenbänder Ribbed belts
optibelt OMEGA HL optibelt OMEGA HP Hochleistungs-Zahnflachriemen, wartungsfrei High performance timing belts, maintenance free
optibelt KK Kunststoffkeilriemen Plastic V-belting
optibelt HTD ® D Doppel-Zahnflachriemen Double section timing belts
optibelt ALPHA optibelt ALPHA linear/ V optibelt ALPHAflex Zahnflachriemen aus Polyurethan Polyurethane timing belts
optibelt ALPHA Spezial Zahnflachriemen mit Nocken und Beschichtungen Timing belts with cleats and back coverings
www.optibelt.com
optibelt KS Keilrillenscheiben V-grooved pulleys
optibelt ZRS Zahnriemenscheiben Timing belt pulleys
optibelt RBS Rippenbandscheiben Ribbed belt pulleys