G11011 by NORD-DRIVESYSTEMS

TABLE OF CONTENTS

Chapter

Contents

Page

EXPLANATORY NOTES

Engineering Data

Permissible output torques

SELECTION PROCEDURES

AGMA Gearmotor Load Classification

Selection procedures - Mass acceleration factor

Overhung loads

Conversion table for overhung loads

Load ratings on solid input shafts

HELICAL GEARED MOTORS

Nomenclature

Available designs

Mounting positions

Paint coatings

Lubrication

Gearmotor selections

Tolerances

Dimension sheets

TABLE OF CONTENTS

Chapter

Contents

Page

HELICAL GEAR UNITS

Table of capacity and ratio

Reducer weights

Dimension sheets Type W - solid input shaft

Dimension sheets NEMA C - face adapters

HELICAL GEAR UNITS - OPTIONS Flange mounted B14

Foot / Flange mounting (B3 / B14 , B3 / B5)

Metric shaft dimensions

IEC Motor Adapter

Lubricant expansion unit

Explanatory notes

Technical data

Motor dimensions

Explanatory notes / Braking torque

MOTORS

BRAKES

GENERAL PARTS LIST Helical Gear Units, double reduction

Helical Gear Units, triple reduction

C - face / IEC - Adapter

Type W - solid input shaft / Motor

EXPLANATORY NOTES

ENGINEERING DATA

AGMA GEARMOTOR LOAD CLASSIFICATIONS

Based on the proven UNICASE design NORD has developed the compact geared motor NORDBLOC. Nine sizes are available in double- and triple-reduction design as foot- or flange-mount units. These drives cover the power range of 0.16 to 50.0 HP with torque capacities of 797 to 28320 Lb-in. Consequent development of the UNICASE concept has created a new drive range which offers the user compact size combined with increased power density. The third stage has been integrated in the main housing making available higher ratios, lower speeds and higher output torques within the compact size of the basic housing. Easy interchangeability is guaranteed by coaxial inline input- and output shafts and identical mounting dimensions of the double- and triple-reduction design. NORD originally developed the UNICASE design for helical-in-line-, shaft-mount-, helical-bevel- and helical-worm-gearboxes back in 1980. UNICASE design means a single ( non-split ) housing in which all bearings are located. Complete machining of this housing is achieved in a single setup on state-of-the-art CNC machining centers. The UNICASE drives of NORD are precision machined to highest standards. Center distances of less then 10 mm are produced without problems.

The AGMA rated parallel (helical) gearmotors in the catalog are grouped by Service Classes I, II or III.

Class I:

A gearmotor can operate with steady loads not exceeding the normal rating and 8 - 10 hours of running time per day.

Class II: (Minimum 1.4 Service Factor) a) A gearmotor can operate with steady loads not exceeding the normal rating and 24 hours of running time per day. or b) A gearmotor can operate with moderate shock loads not exceeding 1.25 x rated load torque and 8 - 10 hours of running time per day.

Class III:(Minimum 2.0 Service Factor) a) A gearmotor can operate with moderate shock loads which are a maximum 1.25 x rated load torque and 24 hours of running time per day. b) A gearmotor can operate with heavy shock loads in excess 1.25 x rated load torque and 8-10 hours of running time per day.

NORDBLOC gearboxes come with reduced backlash as standard. This is achieved by following measures : 1. 2. 3. 4.

narrow tolerances increased gearing quality high rigidity of the gearset extremely high rigidity of the UNICASE housing

These features ensure NORDBLOC gearboxes are ideal for use in applications requiring minimized backlash. NORDBLOC gearboxes do not have any bearings in bolt-on flanges therefore eliminating torque- and overhung-load-stressed sealing surfaces. Drives from NORD, produced to the UNICASE concept offer decisive advantages to the user :

MAX. PERMISSIBLE OUTPUT TORQUES T2 max (see pages 57 - 65) Helical gearboxes, double and triple reduction

T2 max

T2 max [Lb-in]

AGMA GEAR REDUCER LOAD CLASSIFICATIONS This chart is a guideline for the types of loads applied to the following: Parallel (helical) reducers

1/2 hours or less 2 hours intermittently 10 hours 24 hours

SK 372

SK 472

SK 572

SK 672

SK 772

SK 872

SK 972

797 1239 1770

2832

3982

5310

7257

13806

24780

SK 373

SK 473

SK 573

SK 673

SK 773

SK 873

SK 973

1239 1947

2832

3982

5576

7655

14868

28320

[Lb-in] Gearbox type

The Nord Gear units in the catalog grouped by AGMA service classes are applied per AGMA service factor listings as shown by 6010-E88 and 6034-A87. The high-speed gearing is finish ground to reduce noise levels to a minimum. The low-speed gears are skived per the latest finishing technology. In many cases the quality levels of the gearing exceeds AGMA quality levels 11-13.

SERVICE IN HOURS / DAY

great safety in operation highest output torques low noise level high overhung- and thrust-load capacity extended maintenance intervals long service life

Gearbox SK SK 172 272 type

(Minimum 0.8 Service Factor)

LOAD CLASSIFICATION WHEN FREQUENT STOPS/ STARTS ARE APPLIED OF THE MACHINERY IN EXCESS OF 10 / HOUR DESIGN HEAVY UNIMODEUNIMODE- HEAVY SHOCK FORM RATE SHOCK FORM RATE SHOCK SHOCK 0.8 0.8 1.0 0.8 1.0 1.25 1.0

1.0

1.25

1.0

1.25

1.5

1.0

1.25

1.5

1.25

1.5

1.75

1.25

1.5

1.75

1.5

1.75

2.0

ENGINE DRIVEN APPLICATIONS For multiple cylinder engine drive applications, the service factors are greater then those shown above for electric motor drives. Service factors for multiple cylinder engine drives may be determined from the conversion table below. 8 - 10 hour service

SK 273

Uniform Moderate Heavy

Electric Motor Drive 1.00 1.25 1.75

24 hour service

Multiple Cylinder Electric Engine * Motor Drive

1.25 1.50 2.00

1.25 1.50 1.75

Multiple Cylinder Engine *

1.50 1.75 2.00

* These service factors apply essentially to driven applications without extreme variations. For application assistance refer to the factory.

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GEAR MOTOR LOAD CLASSIFICATION

CLASS OF SERVICE APPLICATION AGITATORS Pure Liquids Liquids & Solids Liquids — Variable Density Semi-Liquids — Variable Density BLOWERS Centrifugal Lobe Vane BREWING & DISTILLING Bottling Machinery Brew Kettles — Continuous Duty Cookers — Continuous Duty Mash Tubs Continuous Duty Scale Hopper Frequent starts CAN FILLING MACHINES CANE KNIVES CAR DUMPERS CAR PULLERS — Intermittent duty CLARIFIERS CLASSIFIERS CLAY WORKING MACHINERY Brick Press Briquette Machine Clay working machinery Pug Mill COMPRESSORS Centrifugal Lobe Reciprocating Multi-cylinder Single Cylinder CONVEYORS— UNIFORMLY LOADED OR FED Apron Assembly Belt Bucket Chain Flight Oven Screw CONVEYORS— HEAVY DUTY NOT UNIFORMLY FED Apron Assembly Belt

3 - 10 10 - 24 HRS/DAY HRS/DAY I II

II II

II*

I II I

II II II

—

II I II III

II II II —

I I II

— II II

III III II II

III* III* II II

I II

II II

II III

II* III*

I I I I I I I I

II II II

II II II II II II II II

II II II

APPLICATION Bucket Chain Flight Live Roll (pack age) Oven Reciprocating Screw Shaker CRANES & HOISTS Main Hoists Heavy Duty Medium Duty Reversing Skip Hoists Trolley Drive Bridge Drive CRUSHERS Ore Stone DREDGES Cable Reels Conveyors Cutter Head Drives Jig Drives Maneuvering Winches Pumps Screen Drive Stackers Utility Winches ELEVATORS Bucket-Uniform Load Bucket-Heavy Load Bucket-Continuous Centrifugal Discharge Escalators Freight Gravity Discharge Man Lifts Passengers Service-Hand Lift FANS Centrifugal Cooling Towers Induced Draft Forced Draft Induced Draft Large (Mine, etc.) Large Industrial Light (Small Diameter) FEEDERS Apron Belt Disc Reciprocating Screw FOOD INDUSTRY Beet Slicer

CLASS OF SERVICE

APPLICATION 3 - 10 10 - 24 HRS/DAY HRS/DAY II II Cereal Cooker II II Dough Mixer II II Meat Grinders I II GENERATORS — II II (Not Welding) III III* HAMMER MILLS II II LAUNDRY WASHERS III III* Reversing LAUNDRY TUMBLERS LINE SHAFTS III III* Heavy Shock Load II II Moderate Shock Load II II Uniform Load II II LUMBER INDUSTRY II II* Barkers — II II* Spindle Feed Barkers-Main Drive III III* Carriage Drive III III* Conveyors-Burner Conveyors-Main or II — Heavy Duty II II Conveyors-Main Log III III* Conveyors — III III* Merry-go-Round II — Conveyors-Slab II II Conveyors-Transfer III III* Conveyors-Waste II II Chains-Floor II — Chains-Green Cut-Off Saws-Chain I II Cut-Off Saws-Drag II II Debarking Drums I II Feeds-Edger I II Feeds-Gang I II Feed-Trimmer II II Log Deck I II Log Hauls-Well Type * * Log Turning Devices * * Planer Feed III — Planer Tilting Hoist Rolls-Live-Off II II Brg.-Roll Cases Sorting Table II II Tipple Hoist * * Transfers-Chain II II Transfers-Craneway II II* Tray Drives II II* Veneer Lathe Drives I II MACHINE TOOLS Bending Roll II II Notching Press — II II Belt Driven I II Plate Planer III III* Punch Press — II II Gear Driven Tapping Machines II II

3 - 10 10 - 24 HRS/DAY HRS/DAY I II II II II II I III

II III*

II II

III II I

III* II II

II III * II

III III* * III

II III II III II II II II II II III II III II III III III II II

III III* III III* III* III II III III III III III* III III* III III* III* III* III III

III II II II II II *

III* III III III III III *

* III

* III*

III III

III III*

* Refer to factory Applications requiring frequent stops and starts, high inertia loads or oversized brakes or clutches (exceeding motor full load torque) should be referred to NORD GEAR for review.

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GEAR MOTOR LOAD CLASSIFICATION

CLASS OF SERVICE APPLICATION Other Machine Tools Main Drives Auxillary Drives METAL MILLS Bridle Roll Drives Draw Bench-Carriage Draw Bench — Main Drive Forming Machines Pinch Dryer & Scrubber Rolls, Reversing Slitters Table Conveyors Non-Reversing Reversing Winding Reels-Strip Wire Drawing & Flattening Machine Wire Winding Machine MILLS, ROTARY TYPE Ball Cement Kilns Dryers & Coolers Kilns Pebble Rod Tumbling Barrels MIXER Concrete Mixers, Continous Concrete Mixers, Intermittent Constant Density Variable Density OIL INDUSTRY Chillers Oil Well Pumping Parafin Filter Press Rotary Kilns PAPER MILLS Aerators Agitators (Mixers) Barker Auxilliaries, Hydraulic Barker, Mechanical Barking Drum Beater & Pulper Bleacher Calenders Calenders-Super Converting Machines, except Cutters, Platters

3 - 10 10 - 24 HRS/DAY HRS/DAY II I

II II

III III

III* III*

III III

III* III*

* II

II — —

III III III

III

III * II II III III III

III* * II II III* III* III*

I I II

— II II

II * II II

* II

— — — — — — —

III III III* II* II II* II

—

CLASS OF SERVICE

APPLICATION 3 - 10 10 - 24 HRS/DAY HRS/DAY Conveyors — II Vacuum Filters Conveyors, Log — III* SCREEN Couch — II* Air Washing Cutters, Platers — III* Rotary — Cylinders — II Stone or Gravel Dryers — II* Traveling Water Felt Stretcher — II Intake Felt Whipper — III* SLAB PUSHERS Jordans — II STEERING GEAR Presses — II* STOKERS Pulp Machines, Reel — II TEXTILE INDUSTRY Stock Chests — II Batchers Suction Roll — II* Calenders Washer & Thickeners — II* Card Machines Winders — II Cloth Finishing PRINTING PRESSES I II Machines, PULLERS (Washer, pads, Barge Haul III III* tenters) PUMPS (Dryers, Calenders, Centrifugal I II etc.) Proportioning II II* Dry Cans Reciprocating Dryers Single Acting 3 or Dyeing Machinery More Cylinders II II Knitting Machines Double Acting 2 or (looms, etc.) More Cylinders II II Looms Single Acting 1 or Mangles 2 Cylinders * * Nappers Double Acting Pads Single Acting * * Range Drives Rotary — Gear Type I II Slashers — Lobe, Vane I II Soapers RUBBER INDUSTRY Spinners Mixer III III* Tenter Frames Rubber Calender II II* Washer Rubber Mill Winders (other than (2 or more) II II* (Batchers) Sheeter II II* Yarn Preparatory Tire Building Machines * * Machines (Cards, Tire & Tube Spinners, Slashers, Press Openers * * etc.) Tubers & Strainers II II WINDLASS SEWAGE DISPOSAL EQUIPMENT Aerators * * Bar Screens I II Chemical Feeders I II Collectors, Circuline or Straightline I II Dewatering Screens II II Grit Collectors I II Scum Breakers II II Slow or Rapid Mixers II II Sludge Collectors I II Thickeners II II

3 - 10 10 - 24 HRS/DAY HRS/DAY II II

APPLICATION

I II II I

II II II II

II II II

II II II*

II II II II

* II II II II * II II II II II II

II II

II II*

* Refer to factory Applications requiring frequent stops and starts, high inertia loads or oversized brakes or clutches (exceeding motor full load torque) should be referred to NORD GEAR for review.

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SPEED REDUCER LOAD CLASSIFICATION

APPLICATION

SERVICE FACTOR

APPLICATION

8 to 10 24 hour hours Service Service NORMAL INDUSTRIAL USAGE Steady load not exceeding normal rating of motor or intermittent shock Moderate shock Heavy shock

1.00 1.25 1.75

DREDGES Cable reels, Conveyors Cutter head drives Jig drive, Screen drive Stackers Utility winches

1.25 1.50 Refer to factory ELEVATORS (Conveyor type - same as conveyors) 1.25 1.50 FANS Centrifugal Cooling towers 1.25 Large (mine, etc.) 1.50 Light small diameter

AGITATORS Pure Liquid Variable density

1.00 1.25

BLOWERS Centrifugal Lobe

1.00 1.25

BREWING AND DISTILLING Bottling machinery Brew kettles, continous duty Cookers, continous duty Mash tubs, continous duty Scale hooper (frequent starting)

1.00 1.00 1.00 1.00 1.25

1.25 1.25 1.25 1.25 1.50

CAR DUMPERS

1.75

FOOD INDUSTRY Beet slicer Cereal cookers Dough mixer Meat grinder

SERVICE FACTOR 8 to 10 hours service

24 hours Service

1.25 1.75 1.75 1.25 1.25

1.50 1.75 1.75 1.50 1.50

Refer to Factory

1.00 Refer to 1.25 1.00 1.25 1.00 1.25 1.25

1.25

1.50

CLARIFIERS

1.00

1.25

CLASSIFIERS CLAY WORKING MACHINERY Brick press Briquette machine Clay working machinery Pug mill COMPRESSORS Centrifugal Lobe Reciprocating multi-cylinders (within 3% cyclic variation) Reciprocating, single cylinder

1.25

1.75 1.75 1.25 1.25 1.00 1.25 1.25 Refer to

1.50

1.75 1.75 1.50 1.50 1.25 1.50 1.50 factory

CONVEYORS (Uniformly loaded or fed) Flight, Oven, Screw

1.00

1.25

CONVEYORS (Heavy duty or dual drive not uniformly fed) Apron, Assembly, Belt Bucket, Flight Oven, Screw Reciprocating, Shaker

1.25 1.25 1.25 1.75

1.50 1.50 1.50 1.75

1.25 1.75 Refer to factory

1.50 1.75 Refer to factory

CRANES & HOISTS Main hoists - medium duty - heavy duty Skip hoists Travel motion Trolley motion

LAUNDRY WASHERS

1.25

1.50

LAUNDRY TUMBLERS

1.25

1.50

MACHINE TOOLS Punch press ( gear connected to toad) Notching press (belt driven) Plate planers Other machine tools main drives Auxiliary drives (Feed Traverse, etc.) METALL MILLS Draw bench carriage and main drives Forming machines Pinch, dryer and scrubber rolls (reversing) Slitters Small rolling mill, drives Table conveyors (non reverse) Table conveyors (reversing) Wire drawing and flattening machines

1.75 1.75 Refer to Factory 1.75 1.75 1.50 1.25 1.00

1.00 1.75 Refer to 1.25 1.75 1.25 Refer to 1.25

MILLS (ROTARY TYPE) Ball, dryer cooler Cement kilns, pebble rod Kilns Tumbling barrels

— — 1.25 1.75

MIXERS Concrete mixers - continous Concrete mixers - intermittent Constant density Variable density

1.25 1.00 1.00 1.25

LINE SHAFTS Driving processing equipment Other line shafts

PAPER MILL Bleacher presses Conveyors, suction roll Refer to Winders Factory Agitators (mixers) Dryer, felt stretcher Stock chest calenders Beater & pulper Jordans 1.25 Factory Couch, cylinders 1.50 RUBBER INDUSTRY 1.25 Mixer Rubber calender Rubber mill 1.50 Tire building machines 1.25 Tire and tube press openers 1.50 Tubers or strainers 1.50

HOISTS - See Cranes CAR PULLERS

APPLICATION

1.25

SERVICE FACTOR 8 to 10 hours Service

24 hours Service

1.25 1.00

1.50 1.25

1.00 1.00 1.00 1.25 1.25 1.25 1.25 1.25 1.25

1.25 1.25 1.25 1.50 1.50 1.50 1.50 1.75 1.50

— — 1.75 Refer to Factory —

1.75 1.75 1.75 Refer to Factory 1.50

PUMPS 1.00 Centrifugal 1.00 Gear and rotary - constant density fluid 2.00 Gear and rotary - variable density fluid 1.25 Proportioning pumps 1.00 Reciprocating with open discharge Reciprocating - multicylinder, 1.25 double acting Refer to Reciprocating - single cylinder Factory Reversing duty SEWAGE DISPOSAL EQUIPMENT Inside service

SCREENS Rotary - stone or gravel Traveling water intake 1.75 Factory OIL INDUSTRY Oil well pumping ( not over 150% 1.50 peak torque) 1.75 Refineries Chillers, rotary kiln 1.50 Factory Paraffin filter press 1.50 TEXTILE INDUSTRY Batchers, calenders Card machine, dry cans Dyeing machinery, mangles 1.50 Nappers, soapers 1.50 Spinner, tenter frames 1.50 1.75

1.25 1.25 2.00 1.50 2.00 1.50 Refer to Factory

1.00

1.25

1.25 1.00

1.50 1.25

1.75 1.25 1.25 1.25

1.75 1.50 1.50 1.50

1.25 1.25 1.25 1.25 1.25

1.50 1.50 1.50 1.50 1.50

1.25

1.50 — 1.25 1.50

The application service factors shown above are considered typical for most applications. Where loads are lighter than normal, where units are operated seasonally, or where unusual severe conditions exist, refer to factory. For application assistance refer to the factory.

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EXPLANATORY NOTES

SELECTION PROCEDURES

Coilers, feed-mechanism drivers for wood- working machines, dumbwaiters, balancing machines, thread cutting machines, mediumsized agitators and mixers, heavy conveyor belts, winches, sliding doors, manure scrapers, packing machines, concrete mixers, crane traveling mechanisms, mills, bending machines, gear pumps.

Heavy mixers, shears, presses, centrifuges, rolling stands, heavy winches and lifts, grinding mills, stone crushers, bucket elevators, punching machines, hammer mills, eccentric presses, folding machines, roller tables, tumbing barrels, vibrators, shredders.

Criteria for selection of the gearboxes are: 1)

mechanical power - service factor shown in the tables in catalog

thermal power limit - depending on a) mounting position e.g. V5/V6/V (oil quantity) b) the ratio i <= 20 : 1 (increased splashing losses) c) the actual continuous operating time > 3h (thermal load)

Please contact application engineering for gearbox types marked * . Higher powers possible with short term operation. For continuous operation special features (optimal oil-level, oil-cooler etc.) may be required, please consult factory. Each application requires either the calculation or the measurement of the required motor power. Base the motor selection on the above power requirement. Intermittent shock loading should not be considered for motor power determination. On the other hand, it is important to consider the type of loading when selecting the gearbox size. The service factor f B can be determined by taking into account the factor of inertia m af as well as cycles/ hour and the operating time. Type of loading for gearboxes and geared motors: A

Light conveyor screws, fans, assembly lines, light conveyor belts, small agitators, elevators, cleaning machines, filling machines, inspection machines, belt conveyors.

Other machines should be associated to one of the three groups, depending on the type of load they represent. The service factor is the quotient of maximum output torque and nominal output torque where nominal output torque is defined as the quotient of power and output speed. Output torque

63025 × P × h [Lb - in] n2

T2 =

n2 [RPM] Service factor

fB =

max

To select the correct gearbox the service factor taken from the diagram must be less than or at maximum equal the service factor which is listed in the selection charts at the appropriate speed. The listed overhung load values are based on a service factor fB = 1.

TYPE OF LOADING:

Service factor fB

Operating time hours / day

P [HP]

MASS ACCELERATION FACTOR:

uniform

maf £ 0.25

moderate shock

maf £ 3.00

heavy shock

maf £ 10.00

maf =

ex.red.

Mot.

Iex.red. =

all external inertia moments corrected to motor input

I Mot

moment of inertia of the motor

Cycles / hour

Solid input shaft and NEMA C-face adapters The powers listed refer to W - Types. For NEMA C-face the standard powers refer to frame sizes by industry standards. C-face adapter couplings are not fail - safe. For hoist- and lift- applications please contact factory. OVERHUNG LOADS The following table lists the overhung loads for foot and flange mounted units. Loads are calculated as applied to the midpoint of the shaft. The listed values are based on service factor f B = 1. For shock loading applications the service factor has to be taken into consideration. The permissible overhung load values listed are based on the least favorable loading direction. For higher overhung load values please contact the factory with the exact loading direction and required life expectancy.

The effective overhung load at the gearbox shaft will be determined as follows: FQ

exis.

FQ exis.

2 × T2 × fz £ FQ perm do Existing overhung load at the gearbox shaft =

FQ perm perm. overhung load values from selection table T2

output torque of gearbox

coefficient from table

dia of overhung load member

[Lb] [Lb] [Lb-in]

[in]

If there are transmission elements connected to the output shaft a factor f z has to be taken into account when calculating the applied overhung load.

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EXPLANATORY NOTES

Heavy Duty Bearing Type VL and AL

Table for fz Transmission Factor Notes elements fz ---------------------------------------------------------------Gears 1.1 z £ 17 teeth Sprockets 1.4 z £ 13 teeth Sprockets 1.2 z £ 20 teeth Timing belt pulleys 1.3 Narrow V-belt pulleys 1.7 preFlat belt pulleys 2.5 tension

The NORDBLOC units are also available with heavy duty output bearings. For the sizes SK 272 to 573 there are options for heavy duty bearings, which are suitable for axial loads as well as for radial loads. For the sizes SK 672 and up there are two different options for heavy duty bearings:

}

1) heavy duty bearing-radial load VL 2) heavy duty bearing-axial load AL

If the load is not applied at the midpoint of the shaft, the permissible overhung load value can be calculated for any-point on the shaft (=x) by using the following equation I and II. FQXL = FQ ×

Equation I

z y + x

c f + x permiss. overhung load values at point x - working life

[Lb]

FQXW permiss. overhung load values at point x - shaft strength FQ x c f y z

permiss. overhung load from table, application of force at center of shaft

[Lb]

distance from shaft shoulder to the point where the load is applied

}

The heavy duty bearing options use high load type roller bearings, which require a minimum load to avoid slip of the rolling element. Therefore the load when using heavy duty bearing needs to be at least 5% of the stated maximum values FQ VL respectively FA AL.. If the load is less than this minimum, the standard bearing should be selected.

FQXW =

Equation II FQXL

The usage of heavy duty bearing for the mounting positions V3 and V6 must be checked as a special case. Please contact your local sales office.

[in] [Lb-in] [in] [in] [in]

for factors see table

Please note that after calculating equation I (life) and equation II (shaft strength) the lower of the two results is the permissible overhung load value.

CONVERSION TABLE FOR OVERHUNG LOADS AT OUTPUT SHAFT Gearbox type

SK 172 SK 272 SK 273 SK 372 SK 373 SK 472 SK 473 SK 572 SK 573 SK 672 SK 673 SK 772 SK 773 SK 872 SK 873 SK 972 SK 973

[in] 2.087 2.461 2.697 2.461 2.657 2.500 3,973 3,150 4,134 3,583 3,973 3,854 4,094 4,744 5,906 5,472 6,417

[in] 2.874 3.445 3.681 3.445 3.642 4.350 5.315 4.547 5.512 4.961 5.315 5.429 5.669 6.713 7.874 7.835 8.780

c normal [Lb-in] 619 1150 1150 1062 1062 1947 3097 3009 2832 2478 2389 3186 3097 8850 5487 13894 9381

c heavy duty [Lb-in] -3097 1593 3009 1504 4602 4602 4513 5044 5664 3894 7434 5310 18673 8230 26550 14160

f normal [in] 0.394 0.551 0.512 0.551 0.512 0.669 1.043 0.728 1.043 0.669 0.787 0.630 0.827 1.024 1.220 1.299 1.220

f heavy duty [in] -1.181 0.512 1.181 0.512 0.472 1.161 0.472 1.161 1.220 0 1.260 0.906 1.890 0 2.283 0

[in] 0.750 1.000 1.000 1.000 1.000 1.250 1.250 1.375 1.375 1.375 1.375 1.625 1.625 2.125 2.125 2.375 2.375

[in] 1.57 1.97 1.97 1.97 1.97 2.36 2.36 2.75 2.75 2.75 2.75 3.15 3.15 3.94 3.94 4.72 4.72

CONVERSION TABLE FOR OVERHUNG LOADS AT INPUT SHAFT Gearbox type SK 172 SK 272 SK 273 SK 372 SK 373 SK 472 SK 473 SK 572 SK 573 SK 672 SK 673 SK 772 SK 773 SK 872 SK 873 SK 972 SK 973 www.nord.com

y [in] 2.303 2.303 2.303 2.303 2.303 2.343 2.343 2.343 2.343 2.343 2.343 2.717 2.717 4.055 4.055 5.413 5.413

z [in] 3.091 3.091 3.091 3.091 3.091 3.130 3.130 3.130 3.130 3.130 3.130 3.701 3.701 5.236 5.236 7.008 7.008

c [Lb-in] 239 327 371 327 371 522 575 486 575 238 557 964 1088 2433 2601 4761 5068

FU [in] 0.500 0.625 0.625 0.625 0.625 0.750 0.750 0.750 0.750 0.750 0.750 0.875 0.875 1.125 1.125 1.375 1.375

FV [in] 1.13 1.57 1.57 1.57 1.57 1.57 1.57 1.57 1.57 1.57 1.57 1.97 1.97 2.36 2.36 3.15 3.15

f [in] 0 0 0 0 0 0 0 0 0 0 0 0 0 0.63 0.63 0.71 0.71

EXPLANATORY NOTES

Load Ratings on Solid Input Shafts Permissible Overhung Loads

FQ1 *

Motor Power (HP) Gearbox Size

0.16

0.25

0.33

0.5

0.75

1.5

7.5

SK 172

124

122

119

113

106

SK 272 to SK 373

191

185

176

169

162

158

136

SK 472 to SK 673

479

473

466

461

448

434

407

414

389

SK 772 & SK 773

517

495

473

466

495

450

439

428

SK 872 & SK 873

722

SK 972 & SK 973

1006

362

230

225

410

394

338

671

637

605

954

938

866

293

158

473

401

297

684

621

7.5

279

209

137

457

416

360

326

232

194

232

194

* at the midpoint of the shaft and with no axial load

Permissible Axial (Thrust) Loads FA1

Motor Power (HP) Gearbox Size

0.16

0.25

0.33

0.5

0.75

1.5

SK 172

124

122

119

113

106

SK 272 to SK 373

191

185

176

169

162

158

136

SK 472 to SK 673

479

473

466

461

448

434

407

414

389

362

230

225

SK 772 & SK 773

517

495

473

466

495

450

439

428

410

394

338

293

158

SK 872 & SK 873

722

671

637

605

473

401

297

279

209

137

SK 972 & SK 973

1006

954

938

866

684

621

457

416

360

326

** with no overhung load

www.nord.com

EXPLANATORY NOTES

GEAR TYPE

GEAR DESIGN

FOOT MOUNTED

SK 172 - SK 972 =

Helical Gearboxes double reduction, foot mounted

SK 273 - SK 973 =

Helical Gearboxes triple reduction, foot mounted

Flange mounting

B14

Foot/Flange mounting

B3 / B14

Foot/Flange mounting

B3 / B5

FLANGE MOUNTED

SK 172 F - SK 972 F =

Helical Gearboxes double reduction, flange mounted Flange B5

Reinforced bearing radial VL Reinforced bearing axial

SK 273 F - SK 973 F =

www.nord.com

Helical Gearboxes triple reduction, flange mounted Flange B5

EXPLANATORY NOTES

INPUT OPTIONS W

= solid input shaft

MOTOR

NUMBER OF POLES

Integral Motors = 63 S ...... 225 S

C - Face Motor Adapters = 56 C ..... 280 TC

C - Face Motors = 56 C ..... 286 TC

other pole combinations on request

Metric Motor Adapters = IEC 63 ..... IEC 200

IEC Motors = 63 ...... 200

= 4 - poles ( 1750)

BRE = with brake

High Efficiency Integral Motors = 80 LH........225 SH

EXAMPLE WHEN ORDERING:

INTEGRAL MOTOR OPTIONS

= Brake corrosion-protected

= Brake dust-proof

= Brake motor with hand release

= Thermistors

= Thermostat

= 2

= Soft start rotor

= high inertia fan

= Blower fan, single phase 230 V, IP 54 63 - 132 frames only

= Blower fan, 2- phase 460 V, IP 56 63, 71 and 80 frames only

= Blower fan, 3-phase 460 V, IP 56 90 - 160 frames only

= Incremental encoder

= Overrunning clutches

RLS

= Backstop

motor shaft end

SK 472 F - 90 S/ 4 BRE 20 HL hand release brake and brake size 4 poles (1750RPM) Three phase integral motor 90 S frame Flange mounted housing Helical Geared Motor, 2 reductions

www.nord.com

EXPLANATORY NOTES

SK 472 - 90 S/4 Helical Gearmotor, double reduction, foot mounting also available Foot/flange mounting (B3/B14 or B3/B5) see page 77

SK 472 F - 90 S/4 Helical Gearmotor, double reduction, bolt-on B5 flange mounting

SK 472 Z - 90 S/4 Helical Gearmotor, double reduction, integral flange mounting, B14 see page 76

SK 473 - 71 S/4 Helical Gearmotor, triple reduction, foot mounting also available Foot/flange mounting (B3/B14 or B3/B5) see page 77

SK 473 F - 71 S/4 Helical Gearmotor, triple reduction, bolt-on B5 flange mounting

SK 473 Z - 71 S/4 Helical Gearmotor, triple reduction, integral flange mounting, B14 see page 76

Helical Gearboxes are also available - with solid input shaft (suffix - W) - with NEMA C-face adapters www.nord.com

HELICAL GEAR UNITS

MOUNTING POSITION

HORIZONTAL POSITION

B5I

B5 II

B5 III

VERTICAL POSITION

Mounting positions V1 or V5 may include lubricant expansion unit (see page 79)

Gear units SK 172 - SK 373 have no vent or drain plugs.

Symbols:

Vent plug

Oil level

Drain plug

Mounting surface

www.nord.com

HELICAL GEAR UNITS

POSITION OF TERMINAL BOX AND CABLE ENTRY

Integral motor design: Unless otherwise specified the terminal box is at 1, cable entry is at I. If other positions are required, please specify when ordering. NEMA C-face motor: Unless otherwise specified the terminal box is at 3, cable entry is at I Cable entry is possible only at I or III.

3 1

III

II II

IV 3

2 I

III IV

B3 4 1

3 IV

I II

IV III

III

2 1

II 3

PAINT COATINGS Type

Finish

Recommendation

Finish 1 primed only

Pack dip - primer (red - brown)

For top - coat to be applied by customer

Finish 2 standard

Pack dip - primer Top coat of stainless steel metallic silver grey acrylic

For normal ambient conditions indoors and outdoors USDA authorized for incidental contact

Finish 3 severe duty

Pack dip - primer (2) coats of stainless steel metallic silver grey acrylic

For indoor and outdoor use and hose - down applications and food industry USDA authorized for incidental contact

Additional precautions for Finish of type 1-3: Unless otherwise noted, mounting surfaces are painted. Shaft ends are provided with anti-rust paint.

www.nord.com

HELICAL GEAR UNITS

LUBRICATION

APPROXIMATE CAPACITY [Quarts] (For mounting positons see page 12)

Helical Gearboxes. double reduction Horizontal position

Vertical position

B 5I

B 5II

B 5III

SK 172

0.37

0.53

0.37

0.53

SK 272

0.63

1.06

1.09

1.06

0.63

1.06

SK 372

0.63

1.06

0.63

1.06

SK 472

1.06

1.90

2.01

1.06

2.01

1.59

2.01

2.11

2.01

SK 572

1.06

1.90

2.01

1.06

2.01

1.59

2.01

2.11

2.01

SK 672

1.48

3.81

1.48

3.81

SK 772

2.11

2.85

3.49

3.70

1.69

3.70

3.28

3.49

4.44

3.49

SK 872

3.91

4.97

8.46

9.62

3.70

8.35

4.12

7.61

8.14

9.51

7.72

10.15

SK 972

6.87

8.98

14.80

16.59

6.87

13.74

6.87

12.68

14.27

15.86

15.54

16.91

Helical Gearboxes. triple reduction B3

B 5I

B 5II

B 5III

SK 273

0.66

1.16

0.66

1.16

SK 373

0.58

1.16

0.58

1.16

SK 473

1.37

2.22

1.32

2.22

2.64

2.54

2.64

SK 573

1.37

2.22

1.32

2.22

2.64

2.54

2.64

SK 673

1.90

2.96

1.80

3.38

3.81

3.38

SK 773

2.64

3.49

3.91

2.43

3.81

4.12

4.76

5.29

4.86

4.76

SK 873

4.76

7.93

5.29

8.03

8.46

9.30

9.62

8.88

SK 973

8.46

14.06

13.74

7.40

13.74

14.80

16.91

17.44

16.91

16.70

The standard lubrication is mineral-oil (viscosity class ISO VG 220. ambient temperature - 5o C to 40 o C). Synthetic-oil available at surcharge.

REMARK: Filling quantities are approx. figures. Oil level must be checked according to oil-level plug.

www.nord.com

LUBRICATION All Nord Gear Motors and Speed Reducer leave the factory filled with lubricant adjusted according to the mounting position shown on page 12. Gear units have mineral oil ISO 220 grade as a standard lubricant. When other lubricants are selected please specify the ISO grade and the type of lubricant. Mineral based lubricant should be changed every 10.000 service hours or after two years. For synthetic oils, the lube should be changed every 20.000 service hours or after four years. In case of extreme operating conditions (e.g. high humidity, aggressive environment or large temperature variations), shorter intervals between changes are recommended. It is advisable to combine lubricant change with a thorough cleaning of the gear unit. Bearings filled with grease must also cleaned as scheduled above and packed with fresh grease. Ensure that the bearing cavity is packed to about 1/3 full with grease. Note: Synthetic and mineral based lubricants must do not mixed !

Type of lubricant

Ambient temperature 0

TRIBOL

- 5... 40 (normal) Mineral oil

TEXACO Degol BG 220

Energol GR-XP 220

Alpha SP 220 Alpha MW 220 Alpha MAX 220

Meropa 220

Spartan EP 220

Klüberoil GEM 1-220

Mobilgear 630

Optigear BM 220

Shell Omala 220

Tribol 1100 / 220

Degol BG 100

Energol GR-XP 100

Alpha SP 100 Alpha MW 100 Alpha MAX 100

Meropa 150

Spartan EP 100

Klüberoil GEM 1-100

Mobilgear 629

Optigear BM 100

Shell Omala 100

Tribol 1100 / 100

Vitamol 1010

Bartran HV15

Hyspin AWS 15 Hyspin SP 15 Hyspin ZZ 15

Rando HGZ 15

Univis J 13

Isoflex MT 30 rot

Mobil DTE 11 M

Optimol Ultra 10

Shell Tellus T15

Tribol 943 AW 22

Degol GS 220

Enersyn SG-XP 220

Alphasyn PG 220

Pinnacle EP 220

Glycolube 220

Klübersynth GH 6-220

SHC 630

Optiflex A 220

Shell Tivela WB

Tribol 800 / 220

Degol BAB 220

Biogear SE 220

Carelube GES 220

ISO VG 220 - 15 … 25 ISO VG 100

* - 50 … - 15 ISO VG 15 - 25... 80 Synthetic Oil ISO VG 220 - 25... 80

Klüber-Bio GM2 - 220

Biodegradable oil

Optisynt BS 220

Tribol Bio Top 1418 / 220

ISO VG 220 - 25 … 80

Eural Gear 220

Vitalube GS 220

Cygnus 220

GEAR OIL FM 220

Fließfett S 420

Food grade oil 1) ISO VG 220 - 35... 60

Aralub BAB EP0

Enersyn GSF

Alpha Gel 00

Starfak 220

- 30 ... 60 (normal)

Aralub HL 2

Energrease LS 2

Spheerol AP - 2 LZV - EP

Premium RB

Mehrzweckfett Beacon 2

* - 50 ... 110 * - 50 ... 110

Aralub SEL 2

Spheerol EPL - 2

Aralub SKL 2

Product 783/46

Starfak Lowtemp EP

Beacon 325

- 20 … 120

Aralub BAB EP 2

BP Biogrease EP 2

Biotec

- 20 … 120

Eural Grease EP 2

BP Energrease FM 2

Vitalube HT Grease 2

Synthetic fluid grease

Klüberoil 4UH1 - Mobil DTE FM 220 220 Klübersynth UH1 -6- 220

Optileb GT 220

Shell Cassida Fluid GL 220

Tribol Food Proof 1810 / 220 oder 1800 / 220

Klübersynth GE 46-1200

Glygoyle Grease 00

Obeen UF 00

Shell Tivela compound A Tivela GL 00

Tribol 800 / 1000

Centoplex 2

Mobilux 3

Longtime PD 2

Shell Alvania R 2 oder RL 2

Tribol 4020 / 220 - 2

Optitemp LG 2

Aero Shell Grease 16 oder 7

Tribol 3499

Shell Alvania RLB 2

Molub - Alloy Bio Top 9488

Shell Cassida RLS 2

Molub - Alloy Food Proof 823 - 2 FM

ANTI FRICTION BEARINGS Grease (mineral oil base)

Synthetic grease

Biodegradable grease

Food grade grease 1)

Food grade lubricants with USDA-H1 approval:

H1 / FDA 178.3570

Cygnus 2

* With ambient temperatures below - 30o C and above approx. 60o C, special oil seals must be used.

Carum 330

Centoplex 1DL

Mobilux 2

Isoflex Topas NB 52

Mobiltemp SHC 32

Klüberbio M 32 - 82

Schmierfett UE 100 B

Klübersynth UH1 14 - 151

Mobilgrease FM 102

Tribol 3785

Obeen UF 2

HELICAL GEAR MOTORS

www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

AGMA II

0.16

Service factor

Red. Ratio

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

itotal

[LBS]

4.8

2097

2.7

340.54

1413

1721

1886

4500

SK 673 - 63S/4

52 / 53

5.3 6.7

1903 1505

2.1 2.6

309.58 244.95

1501 1517

1721 1721

2475 2475

3263 3263

SK 573 - 63S/4

52 / 53

1.5 1.9 2.1 2.4 2.7 3.1 3.2

309.58 244.95 218.59 192.51 172.96 152.33 134.32

1656 1674 1679 1685 1690 1692 1694

1721 1721 1721 1721 1721 1721 1721

1940 1949 1951 1955 1955 1958 1960

3263 3263 3263 3263 3263 3263 3263

SK 473 - 63S/4

50 / 51

7.4 8.5 9.5 11 12

1903 1505 1363 1186 1062 920 841

1.3 1.6 1.9 2.5 3.3 3.7

238.68 188.86 161.01 127.40 98.94 85.47

747 785 806 826 837 839

844 844 844 844 844 844

1541 1584 1607 1627 1640 1643

2363 2363 2363 2363 2363 2363

SK 373 - 63S/4

50 / 51

13 17 19

1505 1204 1009 779 593 531

* 0.8 * 0.8 1.0 1.2 1.5 1.7 2.5 2.8 3.2

330.90 245.21 188.81 165.97 127.79 107.65 82.89 71.41 61.73

740 740 788 801 821 828 839 844 844

844 844 844 844 844 844 844 844 844

1535 1535 1586 1602 1622 1631 1645 1647 1649

2363 2363 2363 2363 2363 2363 2363 2311 2241

SK 273 - 63S/4

50 / 51

20 23 26

* 1549 * 1549 1186 1053 841 717 504 443 389

407

2.9

64.75

824

1193

1400

2363

SK 272 - 63S/4

50 / 51

504 363 301 283 230 195 177 168 142 133 106 106 89 79 73 69 61 57 50 47 42 39 35 32 28

1.2 2.1 2.5 2.7 3.4 4.0 4.3 4.5 5.5 5.9 6.9 7.2 8.4 9.5 10.2 10.4 11.2 11.7 12.8 11.7 12.8 13.3 14.5 15.7 17.0

79.56 58.96 48.32 45.40 37.21 30.58 29.10 27.61 23.91 21.59 17.87 17.17 14.84 12.98 12.16 11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71

587 599 603 605 608 608 610 610 610 610 612 612 612 612 612 612 612 612 594 581 560 547 529 511 495

736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736

743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743

1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1820 1787 1719 1683 1636 1595 1548 1503 1460

SK 172 - 63S/4

50 / 51

28 34 36 44 53 56 60 70 77 92 96 113 128 137 146 166 178 202 216 240 262 289 319 353

III

5.3 6.7

6.7 8.4 10

4.8 6.5 8.5 9.6 12 14

* service factor < 1.0

I II III www.nord.com

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

AGMA II

0.16

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

25 24 20 19 16 13 12

19.0 18.7 20.8 20.9 21.7 20.9 21.7

4.07 3.90 3.37 3.03 2.62 2.23 1.93

473 466 443 428 407 387 369

736 725 686 653 614 574 540

743 743 743 743 743 743 743

1400 1382 1325 1283 1229 1170 1121

SK 172 - 63S/4

50 / 51

4.8 5.5

3283 2867

2.3 2.2

343.08 293.34

1681 1701

2025 2025

2381 2394

5625 5625

SK 773 - 63L/4

52 / 53

3283 2584 2018 1770

1.7 2.2 2.8 3.1

340.54 267.99 211.34 185.29

1339 1386 1418 1427

1721 1721 1721 1721

1836 1868 1890 1897

4500 4500 4500 4500

SK 673 - 63L/4

52 / 53

6.1 7.8 8.9

1.3 1.7 1.9 2.1 2.4

309.58 244.95 218.59 192.51 172.96

1438 1478 1490 1503 1512

1721 1721 1721 1721 1721

2462 2475 2475 2475 2475

3263 3263 3263 3263 3263

SK 573 - 63L/4

52 / 53

8.5 9.5

2974 2354 2133 1859 1655

1.0 1.2 1.3 1.5 1.7 2.0 2.0 2.4 2.7 2.9 3.4 3.9 4.4 4.9 5.2

309.58 244.95 218.59 192.51 172.96 152.33 134.32 118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42

1586 1631 1645 1658 1667 1676 1681 1688 1692 1692 1694 1697 1699 1699 1701

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

1901 1926 1933 1940 1944 1951 1953 1955 1958 1958 1960 1960 1962 1962 1962

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 473 - 63L/4

50 / 51

11 12 14 16 17 20 23 26 29 31

2974 2354 2133 1859 1655 1434 1310 1124 982 929 788 681 611 540 504

628

4.2

65.56

1202

1832

2475

3263

SK 472 - 63L/4

50 / 51

* 0.8 1.0 1.2 1.6 2.1 2.3 2.8 3.1 3.2

238.68 188.86 161.01 127.40 98.94 85.47 73.94 66.38 63.29

560 682 736 785 812 821 830 835 835

844 844 844 844 844 844 844 844 844

1357 1474 1530 1584 1613 1622 1634 1638 1638

2363 2363 2363 2363 2306 2259 2169 2131 2111

SK 373 - 63L/4

50 / 51

17 19 23 25 26

* 2354 1876 1575 1212 929 832 681 628 611

32 37

496 425

3.1 3.2

51.23 45.40

819 821

1193 1193

988 988

2363 2363

SK 372 - 63L/4

50 / 51

III 408 426 493 548 635 745 862

0.25

itotal

Radial HD bearing

4.8

5.3 6.7 7.4

5.3 6.7 7.4 8.5 9.5

6.7 8.4 10 13

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Standard bearing 1)

n2 [RPM] [HP] I

0.25

AGMA II

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

itotal

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

* 0.8 * 0.9 1.1 1.6 1.8 2.0 2.4 2.8 3.1

165.97 127.79 107.65 82.89 71.41 61.73 53.98 47.44 41.78

725 774 794 824 830 835 839 842 844

844 844 844 844 844 844 844 844 844

1517 1571 1593 1627 1634 1638 1645 1647 1649

2363 2363 2363 2273 2210 2153 2088 2009 1942

SK 273 - 63L/4

50 / 51

26 30 35 40

* 1646 * 1310 1124 788 681 611 522 451 398 628 540 496 425 372

1.8 2.1 2.5 2.9 3.3

64.75 57.38 51.23 45.40 39.78

812 817 819 821 824

1193 1193 1193 1193 1193

1397 1400 1400 1400 1400

2363 2363 2363 2363 2363

SK 272 - 63L/4

50 / 51

29 32 37 42

1.3 1.6 1.7 2.2 2.6 2.8 2.9 3.5 3.8 4.4 4.6 5.4 6.1 6.5 6.6 7.2 7.5 8.2 7.5 8.2 8.5 9.2 10.0 10.9 12.1 12.0 13.3 13.4 13.9 13.4 13.9

58.96 48.32 45.40 37.21 30.58 29.10 27.61 23.91 21.59 17.87 17.17 14.84 12.98 12.16 11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

581 592 594 601 603 605 605 608 608 610 610 610 610 610 612 612 612 590 576 556 542 524 509 493 470 464 441 425 405 385 367

736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 722 709 668 639 603 563 531

743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743

1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1798 1762 1701 1667 1618 1582 1532 1492 1449 1391 1373 1316 1278 1222 1166 1116

SK 172 - 63L/4

50 / 51

44 53 56 60 70 77 92 96 113 128 137 146 166 178 202 216 240 262 289 319 353 408 426 493 548 635 745 862

566 460 434 354 301 283 266 221 204 168 168 142 124 115 106 97 89 78 73 65 60 55 50 44 39 37 32 29 25 21 19

4337 3779 3407 2894 2664 2283 1735

1.7 1.7 2.2 2.6 2.9 3.3 4.4

343.08 293.34 269.99 230.85 212.92 182.05 140.89

1620 1654 1674 1699 1708 1721 1739

2025 2025 2025 2025 2025 2025 2025

2340 2363 2376 2392 2399 2408 2419

5625 5625 5625 5625 5625 5625 5297

SK 773 - 71S/4

52 / 53

III

9.6 12 14 20 23

28 34 36

0.33

Radial HD bearing

4.8 5.5 6.1 7.2 7.8 9.1 12

* service factor < 1.0

I II III www.nord.com

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

AGMA II

0.33

Radial HD bearing

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

itotal

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

1221

4.9

98.15

1748

2025

2426

4858

SK 773 - 71S/4

52 / 53

4337 3407 2664 2336

1.3 1.6 2.1 2.4

340.54 267.99 211.34 185.29

1238 1328 1382 1402

1721 1721 1721 1721

1771 1829 1865 1879

4500 4500 4500 4500

SK 673 - 71S/4

52 / 53

1.0 1.3 1.4 1.6 1.8 2.1 2.3 2.7 3.1 3.3 3.8

309.58 244.95 218.59 192.51 172.96 152.33 134.32 118.30 106.70 95.90 82.08

1352 1429 1449 1474 1487 1501 1510 1519 1523 1526 1532

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

2408 2455 2468 2475 2475 2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 573 - 71S/4

52 / 53

11 12 14 16 17 20

3929 3106 2814 2451 2186 1894 1735 1487 1301 1221 1044

* 0.9 1.0 1.2 1.3 1.5 1.5 1.8 2.0 2.2 2.6 2.9 3.3 3.7 4.0

244.95 218.59 192.51 172.96 152.33 134.32 118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42

1575 1600 1625 1640 1656 1665 1674 1681 1683 1690 1692 1694 1697 1688

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

1897 1908 1922 1931 1940 1944 1949 1953 1953 1955 1958 1960 1960 1960

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 473 - 71S/4

50 / 51

16 17 20 23 26 29 31

* 3106 2814 2451 2186 1894 1735 1487 1301 1221 1044 903 797 717 673

832

3.2

65.56

1195

1832

2475

3263

SK 472 - 71S/4

50 / 51

* 0.8 * 0.9 1.2 1.6 1.8 2.2 2.3 2.4 2.8 3.2

188.86 161.01 127.40 98.94 85.47 73.94 66.38 63.29 55.65 49.42

520 637 731 783 797 815 821 824 830 835

844 844 844 844 844 844 844 844 844 844

1319 1427 1526 1582 1598 1616 1622 1625 1634 1638

2313 2306 2259 2192 2149 2081 2052 2041 1980 1931

SK 373 - 71S/4

50 / 51

23 25 26 30 34

* 2478 * 2080 1602 1221 1097 903 832 797 690 611

646

2.4

51.23

812

1193

983

2363

SK 372 - 71S/4

50 / 51

* 0.8 1.2 1.4 1.5 1.8 2.1 2.4 2.7 3.1

107.65 82.89 71.41 61.73 53.98 47.44 41.78 36.54 32.11

749 803 815 824 830 837 839 842 824

844 844 844 844 844 844 844 844 844

1544 1602 1616 1625 1634 1640 1645 1631 1584

2288 2174 2122 2075 2016 1953 1895 1836 1784

SK 273 - 71S/4

50 / 51

35 40 46 52

* 1487 1044 903 797 690 593 522 451 398

III 17

4.8 6.1 7.8 8.9 5.3 6.7 7.4 8.5 9.5

6.7 7.4 8.5 9.5 11 12 14

8.4 10 13 17 19

14 20 23 26 30

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

0.33

AGMA II

Red. Ratio

itotal

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

1.4 1.6 1.9 2.2 2.5 2.8 3.2

64.75 57.38 51.23 45.40 39.78 35.26 31.17

799 808 812 817 819 821 824

1193 1193 1193 1193 1193 1193 1193

1393 1395 1397 1397 1400 1400 1400

2363 2363 2363 2363 2356 2293 2225

SK 272 - 71S/4

50 / 51

37 42 47 53

832 717 646 566 496 443 389

1.0 1.2 1.3 1.6 1.9 2.1 2.2 2.7 2.8 3.3 3.5 4.1 4.6 5.0 5.0 5.4 5.7 6.2 5.7 6.2 6.5 7.0 7.6 8.3 9.2 9.1 10.1 10.1 10.5 10.1 10.5

58.96 48.32 45.40 37.21 30.58 29.10 27.61 23.91 21.59 17.87 17.17 14.84 12.98 12.16 11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

556 574 578 590 596 599 601 603 605 608 608 610 610 610 610 610 610 585 572 554 538 520 506 488 468 461 439 425 405 383 365

736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 707 693 655 626 592 554 522

743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743

1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1782 1748 1683 1652 1604 1568 1521 1483 1442 1382 1364 1307 1269 1215 1159 1112

SK 172 - 71S/4

50 / 51

56 60 70 77 92 96 113 128 137 146 166 178 202 216 240 262 289 319 353 408 426 493 548 635 745 862

743 611 575 469 389 372 345 301 274 230 212 186 159 150 142 124 115 106 97 87 80 72 65 59 51 49 42 38 33 28 24

6567 5735 5168 4381 4044 3460 2628 1859 1372

1.1 1.1 1.5 1.7 1.9 2.2 2.9 3.2 5.6

343.08 293.34 269.99 230.85 212.92 182.05 140.89 98.15 75.95

1418 1505 1557 1618 1638 1672 1710 1735 1746

2025 2025 2025 2025 2025 2025 2025 2025 2025

2214 2268 2300 2338 2354 2376 2401 2417 2426

5625 5625 5625 5567 5497 5348 5065 4689 4370

SK 773 - 71L/4

52 / 53

* 6567 5168 4044 3540 2867 1974

* 0.8 1.1 1.4 1.6 1.9 2.8

340.54 267.99 211.34 185.29 146.13 103.46

869 1132 1269 1316 1368 1418

1721 1721 1721 1721 1721 1721

1557 1706 1791 1823 1856 1890

4500 4500 4453 4367 4237 3942

SK 673 - 71L/4

52 / 53

III

25 29 32

28 34 36 44 53

0.50

Service factor

4.8 5.5 6.1 7.2 7.8 9.1 12 17 23 4.8 6.1 7.8 8.9 11 16

* service factor < 1.0

I II III www.nord.com

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

AGMA II

0.50

Radial HD bearing

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

itotal

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

22 24

1434 1310

3.9 4.2

75.38 67.98

1440 1442

1721 1721

1904 1908

3686 3609

SK 673 - 71L/4

52 / 53

* 0.8 * 0.9 1.1 1.2 1.4 1.5 1.8 2.0 2.1 2.5 2.9

244.95 218.59 192.51 172.96 152.33 134.32 118.30 106.70 95.90 82.08 72.18

1260 1316 1375 1411 1445 1463 1485 1499 1503 1514 1521

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

2354 2387 2421 2444 2466 2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 573 - 71L/4

52 / 53

16 17 20 23

* 4708 * 4257 3708 3319 2867 2628 2248 1974 1859 1575 1372

* 0.8 * 0.9 1.0 1.0 1.2 1.3 1.4 1.7 1.9 2.2 2.4 2.6 2.7 3.1 3.5

192.51 172.96 152.33 134.32 118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42 50.97 45.26 41.03

1517 1557 1595 1613 1638 1654 1658 1672 1679 1685 1672 1643 1627 1564 1519

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

1868 1886 1906 1915 1928 1937 1940 1946 1951 1953 1955 1958 1958 1960 1960

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 473 - 71L/4

50 / 51

26 29 31 32 37 41

* 3708 * 3319 2867 2628 2248 1974 1859 1575 1372 1212 1089 1018 982 850 770

25 32 35

1257 982 903

2.1 2.7 3.1

65.56 51.70 46.75

1179 1190 1193

1832 1832 1832

2475 2475 2475

3263 3263 3263

SK 472 - 71L/4

50 / 51

* 0.8 1.0 1.2 1.4 1.5 1.6 1.9 2.1 2.3 2.7 3.1

127.40 98.94 85.47 73.94 66.38 63.29 55.65 49.42 42.69 37.54 33.34

538 684 722 765 781 785 801 797 776 749 727

844 844 844 844 844 844 844 844 844 844 844

1334 1476 1517 1562 1577 1584 1602 1613 1609 1568 1528

1926 1931 1924 1892 1881 1870 1834 1802 1771 1726 1683

SK 373 - 71L/4

50 / 51

34 38 44 50

* 2425 1859 1655 1372 1257 1212 1053 929 832 717 628

1.6 1.6 2.4 2.6

51.23 45.40 39.78 35.26

788 799 806 810

1193 1193 1193 1193

970 977 979 981

2327 2257 2221 2165

SK 372 - 71L/4

50 / 51

42 47

982 850 752 673 * 1575 * 1372 1212

* 0.8 * 0.9 1.0

82.89 71.41 61.73

736 765 785

844 844 844

1530 1562 1584

1964 1937 1908

SK 273 - 71L/4

50 / 51

III

6.7 7.4 8.5 9.5 11 12 14

8.5 9.5 11 12 14 16 17 20 23

13 17 19 23 25 26 30

32 37

20 23 26

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Standard bearing 1)

n2 [RPM] [HP] I

0.50

AGMA II

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

1.2 1.4 1.6 1.8 2.0 2.3 2.4 2.8

53.98 47.44 41.78 36.54 32.11 28.34 27.10 23.70

801 815 824 826 799 774 767 734

844 844 844 844 844 844 844 844

1602 1616 1598 1557 1517 1478 1467 1418

1872 1827 1787 1744 1703 1658 1647 1593

SK 273 - 71L/4

50 / 51

52 59 61 71

1053 903 788 681 611 531 513 443

* 0.9 1.1 1.3 1.5 1.7 1.8 2.1 3.3

64.75 57.38 51.23 45.40 39.78 35.26 31.17 20.06

761 779 788 799 806 810 815 824

1193 1193 1193 1193 1193 1193 1193 1193

1384 1388 1391 1393 1395 1397 1397 1400

2363 2331 2327 2257 2221 2165 2111 1933

SK 272 - 71L/4

50 / 51

53 84

* 1257 1089 982 850 752 673 593 372

* 0.8 * 0.9 1.1 1.3 1.4 1.4 1.8 1.9 2.2 2.3 2.7 3.1 3.3 3.3 3.6 3.7 4.1 3.8 4.1 4.3 4.6 5.0 5.5 6.1 6.0 6.6 6.7 7.0 6.7 7.0

48.32 45.40 37.21 30.58 29.10 27.61 23.91 21.59 17.87 17.17 14.84 12.98 12.16 11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

522 533 560 576 581 585 592 596 601 601 605 605 608 608 610 599 576 563 545 531 515 500 484 461 457 434 421 401 380 362

736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 736 709 675 662 628 601 572 531 506

743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743

1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1845 1823 1802 1744 1708 1652 1622 1573 1541 1496 1460 1420 1366 1346 1294 1253 1204 1148 1103

SK 172 - 71L/4

50 / 51

92 96 113 128 137 146 166 178 202 216 240 262 289 319 353 408 426 493 548 635 745 862

* 929 * 876 717 593 566 522 451 407 345 327 283 248 230 212 186 177 159 142 133 124 106 97 89 77 74 64 58 50 42 36

7753 6567 6062 5195 4974 4301 3938

1.0 1.2 1.3 1.5 1.5 1.8 1.9

269.99 230.85 212.92 182.05 173.85 148.64 140.89

1258 1418 1474 1555 1573 1622 1645

2025 2025 2025 2025 2025 2025 2025

2122 2214 2248 2300 2311 2342 2358

5049 5009 4977 4905 4883 4788 4734

SK 773 - 80S/4

52 / 53

III

30 35 40 46

25 29 32 37 42 47

34 36 44 53 56 60 70 77

0.75

itotal

Radial HD bearing

6.1 7.2 7.8 9.1 9.5 11 12

* service factor < 1.0

I II III www.nord.com

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

AGMA II

0.75

Radial HD bearing

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

itotal

[LBS]

14 17 20 23

3381 2779 2363 2053

2.3 2.1 3.2 3.7

115.04 98.15 80.14 75.95

1676 1703 1719 1730

2025 2025 2025 2025

2378 2396 2408 2414

4615 4455 4322 4192

SK 773 - 80S/4

52 / 53

* 0.9 1.0 1.3 1.7 1.9 2.2 2.6 2.8 3.4

211.34 185.29 146.13 119.31 103.46 84.47 75.38 67.98 57.30

979 1109 1242 1330 1364 1393 1411 1418 1433

1721 1721 1721 1721 1721 1721 1721 1721 1721

1618 1692 1773 1832 1852 1872 1886 1890 1899

3886 3879 3830 3733 3674 3575 3490 3429 3305

SK 673 - 80S/4

52 / 53

19 22 24 29

* 6062 5310 4301 3381 2956 2487 2151 1974 1628

25 29

1894 1628

2.1 2.3

64.18 56.90

1546 1557

2138 2138

2324 2329

4500 4500

SK 672 - 80S/4

52 / 53

* 0.8 * 0.9 1.0 1.2 1.3 1.4 1.7 1.9 2.2 2.4 2.6 2.7

172.96 152.33 134.32 118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42 50.97

970 1105 1163 1247 1301 1316 1348 1364 1361 1357 1352 1346

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

2331 2383 2408 2441 2462 2471 2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 573 - 80S/4

52 / 53

26 29 31 32

* 4974 * 4301 3938 3381 2956 2779 2363 2053 1823 1628 1522 1478

1478

2.2

51.70

1379

1721

2475

3375

SK 572 - 80S/4

52 / 53

* 0.8 * 0.9 1.0 1.1 1.3 1.5 1.6 1.7 1.8 2.1 2.3 2.6 2.7

118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42 50.97 45.26 41.03 37.72 32.94

1550 1589 1602 1616 1607 1595 1575 1562 1555 1505 1465 1424 1375

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

1883 1904 1910 1926 1935 1942 1946 1949 1949 1953 1955 1958 1958

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3249 3168 3078

SK 473 - 80S/4

50 / 51

37 41 46 52

* 3381 * 2956 2779 2363 2053 1823 1628 1522 1478 1274 1151 1027 912

1.4 1.8 2.1 2.2 2.6 3.0

65.56 51.70 46.75 42.21 38.17 33.11

1139 1166 1172 1181 1186 1190

1832 1832 1832 1832 1832 1832

2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263

SK 472 - 80S/4

50 / 51

35 40 43 50

1894 1478 1354 1186 1097 947 * 2487 * 2053

* 0.8 * 0.9

85.47 73.94

518 644

844 844

1316 1433

1589 1620

SK 373 - 80S/4

50 / 51

III

7.8 8.9 11 14 16

9.5 11 12 14 16 17 20 23

14 16 17 20 23 26 29 31 32

25 32

19 23

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

0.75

AGMA II

Service factor

Red. Ratio

itotal

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

1.0 1.1 1.2 1.4 1.6 1.8 2.1 2.5 2.8 2.9

66.38 63.29 55.65 49.42 42.69 37.54 33.34 27.78 24.26 22.37

677 693 736 727 716 698 682 657 637 628

844 844 844 844 844 844 844 844 844 844

1469 1483 1501 1485 1472 1449 1420 1384 1352 1332

1622 1622 1622 1616 1600 1582 1555 1519 1483 1465

SK 373 - 80S/4

50 / 51

50 60 68 74

1894 1823 1575 1389 1248 1071 947 788 699 637

1.0 1.1 1.6 1.8 2.0 2.2 2.5

51.23 45.40 39.78 35.26 31.17 28.59 25.28

731 758 774 785 794 801 808

1193 1193 1193 1193 1193 1193 1193

941 954 963 968 974 977 981

2059 2023 2023 1978 1942 1926 1879

SK 372 - 80S/4

50 / 51

53 59 67

1478 1274 1124 1009 894 805 708

* 0.8 * 0.9 1.0 1.2 1.4 1.5 1.6 1.9 2.1

53.98 47.44 41.78 36.54 32.11 28.34 27.10 23.70 20.83

666 709 734 756 761 738 731 704 684

844 844 844 844 844 844 844 844 844

1508 1487 1469 1442 1418 1388 1384 1346 1314

1667 1652 1629 1604 1580 1550 1541 1508 1469

SK 273 - 80S/4

50 / 51

* 1575 * 1354 1186 1027 912 805 779 664 593

* 0.8 1.0 1.1 1.2 1.4 1.5 1.8 2.1 2.2 2.4 2.6 2.9 3.3

51.23 45.40 39.78 35.26 31.17 28.59 25.28 20.96 20.06 18.59 17.17 15.10 13.41

731 758 774 785 794 801 808 815 817 819 819 817 792

1193 1193 1193 1193 1193 1193 1193 1193 1193 1193 1193 1193 1193

1377 1384 1386 1391 1393 1395 1395 1397 1397 1400 1400 1400 1400

2059 2023 2023 1978 1942 1926 1879 1823 1827 1769 1775 1726 1683

SK 272 - 80S/4

50 / 51

80 84 91 98 112 127

* 1478 1274 1124 1009 894 805 708 593 566 522 487 425 372

* 0.9 * 0.9 1.0 1.2 1.3 1.5 1.5 1.8 2.0 2.2 2.2 2.4 2.5 2.7

30.58 29.10 27.61 23.91 21.59 17.87 17.17 14.84 12.98 12.16 11.41 10.07 9.35 8.25

335 437 396 497 520 547 587 594 599 601 601 596 583 563

659 736 686 736 736 736 736 736 736 736 736 736 736 736

743 743 743 743 743 743 743 743 743 743 743 743 743 743

1845 1845 1845 1845 1845 1845 1845 1832 1787 1753 1733 1685 1654 1607

SK 172 - 80S/4

50 / 51

128 137 146 166 178 202

* 894 * 841 788 673 611 513 496 416 372 345 327 283 266 230

III

25 26 30 34 38 44

32 37 42 47

30 35 40 46 52 59 61 71

32 37 42 47 53 59 67

53 56 60 70 77 92 96 113

* service factor < 1.0

I II III www.nord.com

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 続 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

AGMA II

0.75

1.00

T2 itotal

Radial HD bearing

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

216 240 262 289 319 353 408 426 493 548 635 745 862

221 195 177 159 150 133 115 115 97 87 74 64 55

2.5 2.7 2.8 3.1 3.3 3.6 4.0 4.0 4.4 4.5 4.6 4.5 4.6

7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

549 533 522 504 491 475 455 448 428 414 396 376 358

736 722 725 686 673 655 628 610 590 560 538 502 479

743 743 743 743 743 743 743 743 743 743 743 743 743

1571 1532 1510 1460 1429 1391 1341 1319 1271 1233 1184 1130 1087

SK 172 - 80S/4

50 / 51

* 0.9 1.1 1.2 1.3 1.5 1.7 1.6 2.4 2.8 3.0 3.2

212.92 182.05 173.85 148.64 140.89 115.04 98.15 80.14 75.95 68.49 64.94

1206 1375 1411 1505 1550 1609 1658 1688 1706 1703 1688

2025 2025 2025 2025 2025 2025 2025 2025 2025 2025 2025

2093 2189 2210 2268 2295 2333 2367 2385 2396 2403 2405

4462 4462 4455 4419 4392 4322 4219 4118 4021 3956 3931

SK 773 - 80L/4 SK 773 - 80LH/4

52 / 53

20 23 25 26

* 8080 6930 6638 5735 5257 4505 3708 3151 2744 2522 2425 2425 2248

1.7 1.7

62.32 59.53

1870 1877

2813 2813

2797 2801

5002 4946

SK 772 - 80L/4 SK 772 - 80LH/4

52 / 53

1.0 1.2 1.4 1.7 1.9 2.1 2.6 2.8 3.2

146.13 119.31 103.46 84.47 75.38 67.98 57.30 52.12 47.00

1040 1220 1280 1337 1368 1384 1409 1418 1429

1721 1721 1721 1721 1721 1721 1721 1721 1721

1652 1760 1798 1834 1856 1868 1883 1890 1897

3429 3422 3395 3341 3283 3251 3155 3098 3031

SK 673 - 80L/4 SK 673 - 80LH/4

52 / 53

24 29 32 36

5735 4505 3938 3319 2867 2628 2177 1974 1752

1.6 1.7 2.1 2.6

64.18 56.90 52.03 46.13

1510 1530 1541 1553

2138 2138 2138 2138

2306 2318 2322 2327

4500 4435 4385 4273

SK 672 - 80L/4 SK 672 - 80LH/4

52 / 53

32 36

2522 2177 1974 1752

* 0.8 * 0.9 1.0 1.1 1.3 1.5 1.6 1.8 2.0 2.0 2.3 2.6 2.9

134.32 118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42 50.97 45.26 41.03 37.72

623 799 914 956 1051 1105 1136 1157 1172 1175 1175 1177 1172

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

2309 2369 2408 2421 2453 2471 2475 2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3220 3152 3087

SK 573 - 80L/4 SK 573 - 80LH/4

52 / 53

31 32 37 41 46

* 5257 * 4505 3938 3708 3151 2744 2425 2177 2036 1974 1708 1540 1372

III

7.8 9.1 9.5 11 12 14 17

26 28 11 14 16 19 22

25 29

12 14 16 17 20 23 26 29

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

1.00

AGMA II

Service factor

Red. Ratio

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

itotal

[LBS]

Dimensions page

[LB-IN]

[LBS]

1.7 1.8 2.1 2.2

51.70 46.75 42.21 38.17

1316 1283 1253 1226

1721 1721 1721 1721

2475 2475 2475 2475

3375 3375 3375 3375

SK 572 - 80L/4 SK 572 - 80LH/4

52 / 53

40 43

1974 1805 1575 1469

* 0.8 1.0 1.1 1.2 1.3 1.3 1.6 1.7 1.9 2.0 2.2 2.3 2.5

82.08 72.18 64.10 57.96 53.42 50.97 45.26 41.03 37.72 32.94 29.01 25.60 23.10

1350 1377 1397 1395 1395 1395 1388 1375 1359 1334 1292 1253 1220

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

1895 1910 1924 1931 1935 1937 1944 1949 1951 1953 1955 1958 1960

3263 3263 3263 3263 3256 3240 3168 3112 3042 2975 2896 2826 2763

SK 473 - 80L/4 SK 473 - 80LH/4

50 / 51

52 59 66 73

* 3151 2744 2425 2177 2036 1974 1708 1540 1372 1212 1071 956 867

1.3 1.6 1.7 1.9 2.2 2.4

51.70 46.75 42.21 38.17 33.11 28.83

1132 1145 1161 1166 1179 1186

1832 1832 1832 1832 1832 1832

2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263

SK 472 - 80L/4 SK 472 - 80LH/4

50 / 51

50 58

1974 1805 1575 1469 1257 1089

* 0.8 * 0.8 * 0.9 1.0 1.2 1.4 1.5 1.9 2.1 2.2 2.9

66.38 63.29 55.65 49.42 42.69 37.54 33.34 27.78 24.26 22.37 16.28

504 538 632 653 653 644 635 617 603 594 554

844 844 844 844 844 844 844 844 844 844 844

1292 1298 1325 1328 1332 1325 1319 1294 1276 1260 1190

1373 1386 1415 1429 1436 1433 1429 1409 1391 1379 1310

SK 373 - 80L/4 SK 373 - 80LH/4

50 / 51

68 74 104

* 2522 * 2425 * 2097 1859 1655 1434 1257 1053 929 850 611

1.2 1.3 1.5 1.7 1.9 2.2 2.4 2.6 2.8

39.78 35.26 31.17 28.59 25.28 20.96 20.06 18.59 17.17

632 664 716 779 792 803 806 810 812

1193 1193 1193 1193 1193 1193 1193 1193 1193

938 950 959 965 972 979 979 981 983

1823 1793 1775 1778 1748 1708 1733 1665 1688

SK 372 - 80L/4 SK 372 - 80LH/4

50 / 51

80 84 91 98

1505 1345 1186 1071 938 788 752 690 646 * 1575 * 1372 1212 1071 1035 885 788

* 0.8 * 0.9 1.0 1.2 1.2 1.4 1.6

41.78 36.54 32.11 28.34 27.10 23.70 20.83

527 572 610 630 637 655 659

844 844 844 844 844 844 844

1341 1330 1319 1301 1296 1271 1251

1476 1469 1463 1445 1440 1418 1393

SK 273 - 80L/4 SK 273 - 80LH/4

50 / 51

III

32 35

20 23 26 29 31 32 37 41 46

32 35 40 43

25 26 30 34 38 44 50 60

42 47 53 59 67

40 46 52 59 61 71 80

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Type

Weight approx. Mounting position B3

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

1.00

AGMA II

80 84 91 98 112 127 143 152 172 196 222 70 77 92 96 113 128 137 146 166 178 202 216 240 262 289 319 353 408 426 493 548 635 745 862

4.4 5.2 6.4 7.3 8.2 10 12 14 17 18 20 26 31

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

* 1505 * 1345 1186 1071 938 788 752 690 646 566 496 443 416 363 319 283

* 0.8 * 0.9 1.0 1.2 1.3 1.6 1.7 1.8 1.9 2.2 2.5 2.8 3.0 3.4 3.6 3.6

39.78 35.26 31.17 28.59 25.28 20.96 20.06 18.59 17.17 15.10 13.41 11.88 11.17 9.90 8.65 7.64

565 605 666 749 785 803 806 810 812 792 767 743 731 707 682 657

1145 1157 1179 1193 1193 1193 1193 1193 1193 1193 1193 1193 1193 1168 1134 1087

1375 1382 1386 1388 1391 1395 1395 1397 1397 1397 1400 1400 1400 1400 1402 1402

1823 1793 1775 1778 1748 1708 1733 1665 1688 1652 1618 1571 1562 1519 1476 1431

SK 272 - 80L/4 SK 272 - 80LH/4

50 / 51

* 903 * 823 681 655 558 496 460 434 381 354 310 292 266 239 221 195 177 150 150 124 115 97 85 73

* 0.9 * 0.9 1.1 1.1 1.3 1.5 1.6 1.7 1.8 1.9 2.0 1.9 2.1 2.1 2.3 2.5 2.7 3.0 3.0 3.3 3.3 3.5 3.3 3.5

23.91 21.59 17.87 17.17 14.84 12.98 12.16 11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

180 223 304 450 504 531 531 556 574 567 549 536 520 511 491 482 468 450 441 423 407 392 371 353

470 491 531 653 680 686 680 693 693 680 675 650 635 653 608 619 601 590 565 554 527 506 470 452

743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743

1818 1791 1748 1793 1748 1708 1681 1667 1629 1600 1557 1523 1487 1474 1418 1400 1361 1316 1294 1253 1213 1168 1112 1071

SK 172 - 80L/4 SK 172 - 80LH/4

50 / 51

21497 18187 14780 12956 11532 9461 7885 6753 5567 5257 4726

1.3 1.6 1.9 2.2 2.2 3.0 3.6 4.2 4.2 4.1 4.0

370.96 323.96 267.31 233.44 203.02 169.33 146.30 124.17 105.37 95.04 83.00

3296 3524 3708 3789 3843 3908 3951 3976 3996 4001 4010

5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850

6703 6955 7162 7254 7315 7394 7441 7470 7495 7502 7511

9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000

SK 973 - 90S/4 SK 973 - 90SH/4

276

54 / 55

3637 3053

5.6 6.1

67.05 56.59

4579 4583

5015 4811

6239 6244

9000 9000

SK 972 - 90S/4 SK 972 - 90SH/4

277

54 / 55

[LBS]

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III

III

42 47 53 59 67

1.50

itotal

Radial HD bearing

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

1.50

AGMA II

Service factor

Red. Ratio

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

[LBS]

Dimensions page

[LB-IN]

itotal

[LBS]

1.2 1.5 1.9 1.7 2.2 2.7 3.0 3.6 3.7 4.0 4.0 4.2

208.67 168.45 145.57 125.39 117.51 97.74 88.16 76.27 70.89 63.95 55.32 49.43

1982 2194 2291 2320 2342 2387 2405 2428 2432 2446 2450 2457

4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275

4457 4700 4815 4851 4878 4930 4955 4982 4986 5002 5009 5015

7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875

SK 873 - 90S/4 SK 873 - 90SH/4

178

54 / 55

14 17 19 23 24 28 31 35

12443 9647 7885 7275 6753 5567 4974 4115 3938 3381 3053 2699

32 38 42

2956 2487 2248

4.2 4.4 4.3

52.79 45.81 40.78

3386 3393 3395

2849 2743 2682

5067 5072 5072

6750 6723 6552

SK 872 - 90S/4 SK 872 - 90SH/4

175

54 / 55

* 0.8 * 0.9 1.1 1.6 1.9 2.0 2.1 2.4 2.8 3.3

173.85 148.64 115.04 80.14 75.95 68.49 64.94 57.73 49.36 42.60

774 1112 1395 1593 1609 1589 1575 1530 1483 1429

2025 2025 2025 2025 2025 2025 2025 2025 2025 2025

1892 2043 2201 2322 2349 2363 2369 2385 2399 2408

3605 3688 3746 3710 3670 3634 3616 3560 3470 3375

SK 773 - 90S/4 SK 773 - 90SH/4

104

52 / 53

25 26 30 35 41

* 9956 * 8593 6753 4726 4115 3779 3637 3151 2699 2310

1.7 1.7 1.7 2.0

51.09 48.81 43.45 38.29

1847 1856 1868 1879

2813 2813 2813 2813

2786 2790 2797 2801

4478 4442 4336 4205

SK 772 - 90S/4 SK 772 - 90SH/4

100

52 / 53

2956 2779 2487 2204

* 0.8 1.1 1.3 1.4 1.7 1.9 2.1 2.5

119.31 84.47 75.38 67.98 57.30 52.12 47.00 39.62

821 1159 1242 1280 1341 1364 1370 1316

1721 1721 1721 1721 1721 1721 1721 1721

1535 1721 1773 1798 1838 1852 1868 1883

2792 2878 2882 2878 2851 2824 2792 2723

SK 673 - 90S/4 SK 673 - 90SH/4

52 / 53

36 43

* 6753 4974 4301 3938 3257 2956 2628 2204

1.4 1.8 1.8 2.5 2.6

52.03 46.13 40.13 37.02 32.82

1481 1503 1528 1537 1548

2014 2009 2021 2063 2023

2293 2304 2315 2320 2327

4007 3926 3845 3825 3724

SK 672 - 90S/4 SK 672 - 90SH/4

52 / 53

46 52

2956 2628 2248 2053 1823 * 4726 4115 3637 3257 3053 2956 2558

* 0.8 1.0 1.1 1.2 1.3 1.3 1.6

82.08 72.18 64.10 57.96 53.42 50.97 45.26

394 551 659 738 779 792 857

1721 1721 1721 1721 1721 1721 1721

2351 2396 2426 2448 2457 2462 2475

2995 3008 3004 2995 2979 2975 2939

SK 573 - 90S/4 SK 573 - 90SH/4

52 / 53

III

7.6 9.8 12 13

9.5 11 14 20 23

32 34 38

14 19 22 24 29 32

32 36 42

20 23 26 29 31 32 37

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Type

Weight approx. Mounting position B3

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

1.50

AGMA II

T2 itotal

Radial HD bearing

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

1.7 1.9 2.2 2.5 2.8

41.03 37.72 32.94 29.01 25.60

891 923 943 959 963

1721 1721 1721 1721 1721

2475 2475 2432 2390 2336

2905 2858 2808 2750 2698

SK 573 - 90S/4 SK 573 - 90SH/4

52 / 53

52 59 66

2310 2053 1823 1602 1434

1.4 1.5 1.9 2.0 2.7

42.21 38.17 33.11 28.83 26.70

1152 1130 1100 1062 1049

1721 1721 1721 1721 1721

2475 2475 2475 2475 2475

3375 3375 3375 3375 3375

SK 572 - 90S/4 SK 572 - 90SH/4

52 / 53

58 64

2363 2204 1894 1628 1478 * 3257 * 3053 * 2956 2558 2310 2053 1823 1602 1434 1292 1142

* 0.8 * 0.9 * 0.9 1.0 1.2 1.3 1.4 1.5 1.5 1.6 1.8

57.96 53.42 50.97 45.26 41.03 37.72 32.94 29.01 25.60 23.10 20.90

1019 1042 1058 1100 1116 1132 1141 1141 1134 1125 1114

1721 1721 1721 1721 1721 1721 1721 1721 1721 1721 1721

1890 1899 1904 1919 1926 1935 1942 1946 1951 1953 1955

2909 2905 2905 2867 2840 2804 2763 2711 2660 2617 2552

SK 473 - 90S/4 SK 473 - 90SH/4

50 / 51

2363 2204 1894 1628 1478 1292 1097 1027 929

1.1 1.3 1.5 1.6 1.9 2.2 2.6 2.6 2.8

42.21 38.17 33.11 28.83 26.70 23.16 20.17 18.44 16.63

1096 1112 1139 1157 1166 1177 1186 1177 1145

1832 1832 1832 1832 1832 1832 1832 1832 1832

2475 2475 2475 2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 472 - 90S/4 SK 472 - 90SH/4

50 / 51

* 2487 * 2151 1894 1575 1389 1274 912

* 0.8 * 0.9 1.0 1.2 1.4 1.5 1.9

42.69 37.54 33.34 27.78 24.26 22.37 16.28

502 527 531 533 531 529 509

844 844 844 844 844 844 844

1046 1085 1100 1116 1118 1118 1091

1103 1148 1175 1202 1206 1208 1190

SK 373 - 90S/4 SK 373 - 90SH/4

50 / 51

1602 1407 1186 1124 1035 965 841 743 664 620 549 487

1.1 1.3 1.5 1.6 1.7 1.8 2.0 2.3 2.5 2.4 2.7 3.1

28.59 25.28 20.96 20.06 18.59 17.17 15.10 13.41 11.88 11.17 9.90 8.65

236 324 434 572 482 644 695 729 711 707 682 659

718 770 826 945 835 983 1004 1013 992 1013 988 974

929 945 959 963 968 970 977 979 983 983 986 988

1487 1487 1478 1532 1456 1519 1503 1487 1449 1451 1415 1386

SK 372 - 90S/4 SK 372 - 90SH/4

50 / 51

III

41 46

40 43 50

29 31 32 37 41 46 52 59 66 73 83 40 43 50 58 64 73 86 92 102 38 44 50 60 68 74 104 59 67 80 84 91 98 112 127 143 152 172 196

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

AGMA II

1.50

Red. Ratio

itotal

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

[LBS]

Dimensions page

[LB-IN]

222 251

425 381

3.3 3.4

7.64 6.75

637 619

954 927

988 990

1350 1319

SK 372 - 90S/4 SK 372 - 90SH/4

50 / 51

* 0.8 * 0.9 1.0 1.1 1.2 1.3 1.5 1.7 1.9 2.0 2.3 2.6 2.9 3.3 3.4 3.4 3.5 3.7

28.59 25.28 20.96 20.06 18.59 17.17 15.10 13.41 11.88 11.17 9.90 8.65 7.64 6.75 6.34 5.62 4.96 4.57

164 263 380 520 430 601 659 700 695 691 668 650 628 610 601 576 560 549

668 718 785 905 801 954 977 992 965 992 974 954 936 916 905 862 853 844

1373 1379 1386 1386 1388 1391 1393 1395 1397 1397 1397 1400 1400 1400 1400 1402 1402 1402

1487 1487 1478 1532 1456 1519 1503 1487 1449 1451 1415 1386 1350 1319 1305 1260 1233 1215

SK 272 - 90S/4 SK 272 - 90SH/4

50 / 51

152 172 196 222 251 266 301 341 371

* 1602 * 1407 1186 1124 1035 965 841 743 664 620 549 487 425 381 354 319 274 257

1.1 1.2 1.2 1.4 1.3 1.4 1.4 1.5 1.7 1.8 2.0 2.0 2.2 2.4 2.8 3.2 3.3

11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

297 349 347 385 380 383 437 405 450 448 434 425 410 394 380 360 347

457 486 479 495 486 475 515 475 506 495 491 479 468 443 439 416 407

743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743

1541 1519 1487 1458 1433 1400 1393 1343 1337 1305 1265 1244 1204 1166 1130 1080 1044

SK 172 - 90S/4 SK 172 - 90SH/4

50 / 51

408 426 493 548 635 745 862

646 566 531 469 434 398 363 327 292 266 230 221 195 177 150 124 106

1.0 1.2 1.4 1.6 1.7 2.2 2.7 3.1 3.2 3.1 3.0

370.96 323.96 267.31 233.44 203.02 169.33 146.30 124.17 105.37 95.04 83.00

2570 3060 3427 3578 3679 3803 3877 3922 3960 3969 3983

5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850

5965 6455 6847 7016 7128 7270 7355 7407 7454 7463 7479

9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000

SK 973 - 90L/4 SK 973 - 90LH/4

284

54 / 55

10 12 14 17 18 20

28656 24249 19700 17275 15381 12611 10505 9009 7416 7009 6301

26 31

4850 4071

4.2 4.6

67.05 56.59

4568 4574

4835 4653

6235 6239

9000 9000

SK 972 - 90L/4 SK 972 - 90LH/4

286

54 / 55

* 16594

* 0.9

208.67

1485

4275

3944

7875

SK 873 - 90L/4 SK 873 - 90LH/4

186

54 / 55

112 127 143

146 166 178 202 216 240 262 289 319 353

4.4 5.2 6.4 7.3 8.2

7.6

[LBS]

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Type

Weight approx. Mounting position B3

III

59 67 80 84 91 98

2.00

Service factor

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

2.00

AGMA II

Radial HD bearing

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

itotal

[LBS]

1.2 1.4 1.3 1.7 2.0 2.2 2.7 2.8 3.0 3.0 3.1 3.1

168.45 145.57 125.39 117.51 97.74 88.16 76.27 70.89 63.95 55.32 49.43 39.91

1942 2135 2189 2232 2313 2347 2390 2396 2419 2430 2441 2453

4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275

4415 4633 4696 4745 4842 4883 4934 4943 4970 4984 4995 5011

7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875

SK 873 - 90L/4 SK 873 - 90LH/4

186

54 / 55

17 19 23 24 28 31 35 43

12868 10505 9700 9009 7416 6638 5487 5257 4505 4071 3602 2929

32 38 42

3938 3319 3000

3.2 3.3 3.2

52.79 45.81 40.78

3371 3382 3386

2669 2588 2534

5060 5065 5067

6746 6491 6347

SK 872 - 90L/4 SK 872 - 90LH/4

183

54 / 55

* 0.8 1.2 1.4 1.5 1.6 1.8 2.1 2.5 2.7

115.04 80.14 75.95 68.49 64.94 57.73 49.36 42.60 36.79

1026 1449 1472 1463 1460 1431 1395 1357 1321

2025 2025 2025 2025 2025 2025 2025 2025 2025

2000 2232 2284 2306 2318 2347 2369 2387 2399

3170 3317 3317 3317 3317 3285 3238 3186 3121

SK 773 - 90L/4 SK 773 - 90LH/4

112

52 / 53

35 41 47

* 9009 6301 5487 5045 4850 4204 3602 3080 2682

1.3 1.3 1.3 1.5 2.8 2.7

51.09 48.81 43.45 38.29 35.64 34.05

1793 1807 1829 1850 1865 1868

2727 2759 2727 2653 2759 2759

2759 2765 2777 2788 2795 2797

4165 4158 4066 3958 3958 3944

SK 772 - 90L/4 SK 772 - 90LH/4

109

52 / 53

49 50

3938 3708 3319 2929 2575 2522

* 0.8 1.0 1.1 1.3 1.4 1.6 1.9 2.6 2.7

84.47 75.38 67.98 57.30 52.12 47.00 39.62 29.53 28.05

673 902 1010 1190 1269 1280 1244 1170 1157

1721 1721 1721 1721 1721 1721 1721 1721 1721

1550 1652 1697 1771 1798 1825 1854 1886 1888

2421 2484 2511 2549 2549 2549 2525 2437 2421

SK 673 - 90L/4 SK 673 - 90LH/4

52 / 53

59 62

* 6638 5735 5257 4345 3938 3505 2929 2142 2036

1.0 1.3 1.4 1.8 2.0 2.3

52.03 46.13 40.13 37.02 32.82 28.55

1391 1436 1478 1496 1503 1460

1537 1559 1643 1726 1726 1735

2250 2270 2291 2300 2311 2318

3634 3578 3548 3560 3485 3431

SK 672 - 90L/4 SK 672 - 90LH/4

52 / 53

52 59

3938 3505 3000 2744 2425 2142 * 4850 * 4345 4071 3938 3407

* 0.8 * 0.9 1.0 1.0 1.2

64.10 57.96 53.42 50.97 45.26

126 275 349 383 513

1721 1721 1721 1721 1721

2320 2336 2336 2340 2336

2612 2642 2651 2655 2660

SK 573 - 90L/4 SK 573 - 90LH/4

52 / 53

III

9.8 12 13 14

14 20 23 25 26 30

32 34 38 43

19 22 24 29 32 36 43

32 36 42 46

26 29 31 32 37

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP]

Red. Ratio

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

[LBS]

Dimensions page

[LBS]

1.3 1.5 1.6 1.9 2.1 2.3 2.6 2.9

41.03 37.72 32.94 29.01 25.60 23.10 20.90 18.86

585 653 709 754 783 806 819 828

1721 1721 1721 1721 1721 1721 1721 1721

2322 2304 2279 2243 2214 2178 2138 2095

2651 2637 2612 2576 2547 2511 2459 2419

SK 573 - 90L/4 SK 573 - 90LH/4

52 / 53

66 73 83 92

3080 2744 2425 2142 1912 1726 1522 1372

1.0 1.1 1.4 1.5 2.0 2.3 2.7 2.5

42.21 38.17 33.11 28.83 26.70 23.16 20.17 18.44

783 806 954 986 981 961 927 927

1539 1539 1618 1640 1721 1721 1721 1721

2475 2475 2475 2475 2475 2475 2475 2475

3375 3375 3375 3375 3375 3375 3375 3375

SK 572 - 90L/4 SK 572 - 90LH/4

52 / 53

64 73 86 92

3151 2929 2522 2177 1974 1726 1469 1372

37 41 46 52 59 66 73 83

* 3407 * 3080 2744 2425 2142 1912 1726 1522

* 0.8 * 0.9 1.0 1.0 1.1 1.2 1.2 1.3

45.26 41.03 37.72 32.94 29.01 25.60 23.10 20.90

792 842 891 932 961 977 983 988

1721 1721 1721 1721 1721 1721 1721 1721

1881 1897 1910 1924 1933 1940 1944 1924

2572 2572 2572 2547 2522 2495 2471 2419

SK 473 - 90L/4 SK 473 - 90LH/4

50 / 51

40 43 50 58

* 3151 2929 2522 2177 1974 1726 1469 1372 1239 1115 1018 920 761

* 0.8 1.0 1.1 1.2 1.4 1.6 1.9 1.9 2.1 2.3 2.4 2.6 2.9

42.21 38.17 33.11 28.83 26.70 23.16 20.17 18.44 16.63 15.04 14.02 12.68 10.45

754 783 977 1080 1132 1150 1121 1123 1098 1071 1053 1024 979

1467 1451 1544 1573 1679 1708 1692 1764 1760 1710 1724 1672 1640

2475 2475 2475 2475 2475 2475 2475 2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 472 - 90L/4 SK 472 - 90LH/4

50 / 51

* 0.8 * 0.9 1.0 1.1 1.5

33.34 27.78 24.26 22.37 16.28

320 446 452 459 461

702 770 792 803 826

882 938 959 974 988

925 992 1017 1035 1067

SK 373 - 90L/4 SK 373 - 90LH/4

50 / 51

104

* 2522 * 2097 1859 1708 1212

* 0.8 * 0.9 1.1 1.2 1.3 1.4 1.5 1.7

28.59 25.28 20.96 20.06 18.59 17.17 15.10 13.41

77 104 137 173 188 322 412 484

290 382 437 574 459 668 731 770

878 905 932 938 945 952 963 970

1190 1215 1253 1330 1244 1348 1357 1350

SK 372 - 90L/4 SK 372 - 90LH/4

50 / 51

98 112 127

* 2142 * 1885 1575 1505 1389 1283 1124 991

III

41 46 52 59

40 43 50 58

64 73 86 92 102 113 124 137 166 50 60 68 74

59 67 80 84 91

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Type

Weight approx. Mounting position B3

AGMA II

itotal

Standard bearing

[LB-IN]

2.00

Service factor

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

2.00

AGMA II

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

1.9 1.8 2.1 2.3

11.88 11.17 9.90 8.65

504 556 576 605

770 806 801 810

974 977 981 983

1330 1339 1316 1296

SK 372 - 90L/4 SK 372 - 90LH/4

50 / 51

172 196

885 832 735 646

* 0.8 * 0.8 * 0.9 1.0 1.1 1.2 1.4 1.5 1.7 1.9 2.2 2.5 2.5 2.6 2.7 2.8 2.8 2.9 2.8 2.9

20.96 20.06 18.59 17.17 15.10 13.41 11.88 11.17 9.90 8.65 7.64 6.75 6.34 5.62 4.96 4.57 4.05 3.52 3.19 2.77

87 106 172 266 365 441 464 522 542 581 596 583 576 556 540 533 513 495 482 464

447 529 555 628 695 740 740 779 779 794 785 785 772 756 747 763 731 709 689 675

1373 1375 1379 1382 1386 1391 1393 1393 1395 1397 1397 1400 1400 1400 1400 1400 1402 1402 1402 1364

1253 1330 1244 1348 1357 1350 1330 1339 1316 1296 1271 1251 1231 1202 1177 1170 1134 1103 1073 1044

SK 272 - 90L/4 SK 272 - 90LH/4

50 / 51

222 251 266 301 341 371 418 481 530 611

* 1575 * 1505 * 1389 1283 1124 991 885 832 735 646 566 504 478 416 372 336 301 266 239 204

* 0.8 * 0.9 * 0.9 1.0 * 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.5 1.7 1.8 2.1 2.4 2.5

11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

77 99 115 180 176 214 293 252 311 333 351 349 360 351 369 349 335

227 284 288 322 313 333 387 347 385 396 401 392 392 376 385 356 347

743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743 743

1406 1400 1379 1359 1334 1316 1323 1271 1265 1244 1213 1195 1159 1127 1096 1044 1010

SK 172 - 90L/4 SK 172 - 90LH/4

50 / 51

635 745 862

* 867 * 761 * 708 628 * 584 522 478 434 398 354 310 292 257 230 195 168 150

1.0 1.1 1.5 1.8 2.1 2.5 2.7 3.0 3.4 3.5 3.8

267.31 233.44 169.33 146.30 124.17 105.37 95.04 83.00 77.24 67.45 59.18

2446 2896 3479 3661 3764 3857 3877 3908 3942 3958 3983

5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850

5850 6284 6903 7108 7227 7333 7355 7394 7432 7450 7479

9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000

SK 973 - 100L/4 SK 973 - 100LH/4

298

54 / 55

14 17 18 20 23 25 30

29559 25913 18912 15762 13514 11124 10505 9461 8222 7567 6301

80 84 91 98 112 127 143 152 172 196

146 166 178 202 216 240 262 289 319 353 408 426 493 548

6.4 7.3 10 12

* service factor < 1.0

I II III

[LBS]

III

143 152

3.00

itotal

Radial HD bearing

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

AGMA II

3.00

Service factor

Red. Ratio

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

itotal

[LBS]

Dimensions page

[LB-IN]

[LBS]

26 31

7275 6098

2.8 3.0

67.05 56.59

4532 4550

4469 4343

6215 6226

9000 8960

SK 972 - 100L/4 SK 972 - 100LH/4

299

54 / 55

* 0.9 1.1 1.3 1.5 1.7 1.8 1.9 2.2 2.4 2.8 3.1 3.0 3.1 3.3 3.5

145.57 117.51 97.74 88.16 81.51 76.27 70.89 63.95 55.32 49.43 43.75 39.91 35.32 31.42 26.49

1609 1879 2090 2174 2255 2275 2291 2342 2369 2392 2412 2421 2435 2444 2455

4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275

4064 4345 4581 4676 4772 4797 4815 4878 4907 4937 4961 4973 4988 5000 5013

7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875

SK 873 - 100L/4 SK 873 - 100LH/4

200

54 / 55

28 31 35 40 43 49 55 66

* 15762 13514 11124 9956 8593 8222 7885 6753 6098 5407 4726 4398 3859 3443 2867

32 38 42 47 54 61

5912 4974 4505 4027 3505 3098

2.1 2.2 2.2 3.3 3.9 4.4

52.79 45.81 40.78 36.68 31.83 28.34

3326 3350 3359 3371 3260 3155

2309 2277 2241 2284 2232 2187

5036 5049 5054 5058 5063 5067

6215 6030 5886 5866 5690 5537

SK 872 - 100L/4 SK 872 - 100LH/4

197

54 / 55

* 0.9 1.0 1.1 1.2 1.4 1.6 1.8 2.0 2.3 2.7 3.0 3.3

75.95 68.49 64.94 57.73 49.36 42.60 36.79 32.97 28.47 25.13 22.37 19.61

1004 1127 1188 1213 1217 1204 1190 1172 1150 1127 1100 1073

2025 2025 2025 2025 2025 2025 2025 2025 2025 2025 1985 1926

2079 2138 2162 2232 2288 2329 2354 2372 2387 2399 2405 2340

2612 2662 2684 2745 2777 2790 2777 2763 2727 2689 2655 2599

SK 773 - 100L/4 SK 773 - 100LH/4

126

52 / 53

53 61 70 78 89

* 8222 7567 7275 6301 5407 4611 4027 3567 3098 2699 2425 2124

1.8 1.8 1.9 1.8 2.7 2.8 3.2 3.4

35.64 34.05 30.31 26.71 24.72 23.62 21.02 18.53

1798 1802 1834 1850 1859 1863 1841 1773

2162 2183 2183 2138 2252 2261 2228 2169

2761 2765 2779 2788 2792 2795 2801 2806

3537 3542 3470 3382 3431 3409 3328 3233

SK 772 - 100L/4 SK 772 - 100LH/4

122

52 / 53

70 73 83 94

3859 3779 3257 2912 2699 2593 2283 2009 * 6522 * 5912 5257 4398 3779 3204 3053 2867

* 0.9 * 0.9 1.1 1.3 1.5 1.7 1.8 1.9

57.30 52.12 47.00 39.62 33.55 29.53 28.05 26.06

236 416 590 803 929 1033 1053 1044

1721 1721 1721 1721 1721 1721 1721 1721

1564 1634 1697 1766 1809 1841 1847 1856

1937 1998 2059 2113 2142 2142 2142 2135

SK 673 - 100L/4 SK 673 - 100LH/4

111

52 / 53

III

12 14 17 19 22 23 24

23 25 26 30 35 41 47

49 50 58 65

29 32 36 43 50 59 62 66

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Type

Weight approx. Mounting position B3

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM]

FQ N OHL

Radial HD bearing

Axial HD bearing 2)

FA N Thrust

FQ VL OHL

FA AL Thrust

Type

Weight approx. DimenMounting position sions B3 page

[LBS] [HP]

itotal

[LBS]

2.2 2.4 2.7 3.0

23.20 20.90 18.45 16.42

1026 1006 983 961

1721 1721 1721 1688

1870 1881 1890 1897

2122 2102 2079 2045

SK 673 - 100L/4 SK 673 - 100LH/4

111

52 / 53

1.2 1.3 1.5 1.8 2.1 2.5 1.8 2.5 2.5 2.6

37.02 32.82 28.55 25.32 21.51 19.45 18.86 17.42 15.44 13.87

810 968 1181 1283 1247 1242 1204 1224 1186 1161

774 938 1150 1235 1287 1382 1276 1440 1429 1438

2241 2264 2282 2297 2311 2318 2320 2324 2329 2331

3038 3008 3008 2957 2918 2945 2840 2927 2858 2817

SK 672 - 100L/4 SK 672 - 100LH/4

111

52 / 53

100 113 125

4115 3637 3204 2779 2363 2124 2053 1894 1673 1513

1.0 1.1 1.2 1.4 1.5 1.7 1.9 2.2

37.72 32.94 29.01 25.60 23.10 20.90 18.86 16.37

235 273 315 398 459 527 569 610

1721 1721 1721 1721 1721 1721 1721 1721

1942 1960 1967 1960 1951 1933 1919 1886

2189 2219 2232 2232 2232 2212 2198 2167

SK 573 - 100L/4 SK 573 - 100LH/4

52 / 53

106

4115 3637 3204 2867 2593 2283 2053 1788 2956 2593 2204 2053 1974 1859 1690 1673 1522 1381 1142

1.3 1.5 1.8 1.6 2.0 1.7 2.4 1.7 2.5 2.5 2.8

26.70 23.16 20.17 18.44 17.98 16.63 15.59 15.04 14.02 12.68 10.45

376 545 668 835 826 824 808 808 801 783 761

983 1078 1145 1296 1256 1323 1296 1312 1377 1348 1377

2475 2475 2475 2475 2475 2475 2475 2475 2475 2475 2475

3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375

SK 572 - 100L/4 SK 572 - 100LH/4

52 / 53

66 73 83

* 2867 * 2593 * 2283

* 0.8 * 0.8 * 0.9

25.60 23.10 20.90

626 675 720

1721 1721 1721

1782 1778 1764

2167 2167 2151

SK 473 - 100L/4 SK 473 - 100LH/4

50 / 51

64 73 86 92 96

2956 2593 2204 2053 1974 1859 1690 1673 1522 1381 1142

1.0 1.1 1.3 1.3 1.3 1.4 1.5 1.5 1.6 1.7 1.9

26.70 23.16 20.17 18.44 17.98 16.63 15.59 15.04 14.02 12.68 10.45

304 500 655 873 851 961 970 977 972 947 918

900 1017 1080 1235 1211 1274 1260 1271 1339 1310 1352

2475 2475 2475 2475 2475 2475 2475 2475 2475 2475 2475

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 472 - 100L/4 SK 472 - 100LH/4

50 / 51

AGMA I II

3.00

[LB-IN]

74 83 94 106

2558 2283 2009 1788

80 89

III

46 52 59 68

46 52 59 66 73 83 92

64 73 86 92 96 102 112 113 124 137 166

102 112 113 124 137 166

* service factor < 1.0

I II III

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Standard bearing 1)

n2 [RPM] [HP]

AGMA II

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LBS]

1009 912 788 681

2.1 2.3 2.6 3.0

9.22 8.34 7.23 6.30

896 871 842 810

1339 1310 1285 1247

2475 2475 2475 2475

3263 3263 3263 3263

SK 472 - 100L/4 SK 472 - 100LH/4

50 / 51

104

1823

1.0

16.28

335

556

783

821

SK 373 - 100L/4 SK 373 - 100LH/4

50 / 51

127 143 152

1487 1319 1248 1097 965 850 752 708

1.1 1.2 1.2 1.4 1.6 1.7 1.7 1.8

13.41 11.88 11.17 9.90 8.65 7.64 6.75 6.34

66 89 128 191 277 324 376 389

277 351 419 455 506 524 556 556

938 950 954 963 970 977 979 981

1087 1089 1121 1112 1121 1112 1107 1098

SK 372 - 100L/4 SK 372 - 100LH/4

50 / 51

* 0.8 * 0.9 1.0 1.1 1.3 1.5 1.6 1.7 2.0 2.2 2.4 2.6 2.8 2.6 2.8 2.6 2.8

13.41 11.88 11.17 9.90 8.65 7.64 6.75 6.34 5.62 4.96 4.57 4.05 3.52 3.19 2.77 2.17 1.88

32 45 71 140 232 284 342 356 367 405 450 459 468 455 439 410 394

251 321 385 419 477 497 533 533 529 545 581 569 581 563 556 518 502

1377 1382 1384 1388 1391 1393 1395 1395 1397 1397 1400 1375 1350 1319 1285 1206 1170

1087 1089 1121 1112 1121 1112 1107 1098 1073 1064 1067 1044 1026 1001 981 923 893

SK 272 - 100L/4 SK 272 - 100LH/4

50 / 51

301 341 371 418 481 530 611 780 900

* 1487 * 1319 1248 1097 965 850 752 708 628 558 513 451 389 354 310 239 212

* 0.9 1.1 1.3 1.5 1.6 1.8 2.1 2.1 2.3 2.0 2.0 2.1

169.33 146.30 124.17 105.37 95.04 83.00 77.24 67.45 59.18 52.01 44.15 42.27

2135 2858 3215 3501 3564 3661 3758 3803 3877 3915 3951 3956

5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850

5576 6246 6617 6930 7000 7108 7218 7270 7355 7398 7441 7445

9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000

SK 973 - 100L/40 SK 973 - 112MH/4

302

54 / 55

23 25 30 34 40 41

* 31524 26267 22514 18541 17514 15762 13709 12611 10505 9275 7885 7691

1.7 1.8 2.4 2.8 2.3 2.3 2.5

67.05 56.59 46.91 39.59 22.62 20.37 17.77

4417 4295 4140 3978 3427 3344 3204

3746 3710 3724 3659 3402 3348 3254

6156 6183 6203 6215 6237 6239 6242

8231 8035 7920 7718 6966 6822 6617

SK 972 - 100L/40 SK 972 - 112MH/4

303

54 / 55

37 43 77 85 98

12125 10169 8523 7328 4098 3708 3213

III 188 208 241 276

172 196 222 251 266 127 143 152 172 196 222 251 266

10 12 14 17 18 20

26 31

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Axial HD bearing

3.00

5.00

[LB-IN]

itotal

Radial HD bearing

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

5.00

AGMA II

Radial HD bearing

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

itotal

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LB-IN]

[LBS]

* 18541 * 16594 14328 13709 13133 11257 10169 9009 7885 7328 6434 5735 4779 4257 3540

* 0.8 * 0.9 1.0 1.1 1.1 1.3 1.5 1.7 1.9 1.8 1.9 2.0 2.1 2.0 2.1

97.74 88.16 81.51 76.27 70.89 63.95 55.32 49.43 43.75 39.91 35.32 31.42 26.49 23.38 19.72

1107 1485 1791 1859 1917 2081 2160 2232 2291 2318 2356 2381 2412 2426 2441

4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275

3620 3944 4250 4322 4388 4570 4660 4745 4815 4847 4894 4923 4961 4977 4997

7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7875

SK 873 - 100L/40 SK 873 - 112MH/4

204

54 / 55

9850 8292 7505 6708 5841 5168 3425 3036 2761

1.3 1.3 1.3 2.0 2.4 2.7 1.9 2.1 2.1

52.79 45.81 40.78 36.68 31.83 28.34 18.77 16.78 15.25

3177 3247 3157 3143 3038 2939 2696 2610 2552

1600 1663 1663 1805 1793 1784 1843 1823 1807

4959 4995 5011 5024 5038 5047 5065 5067 5069

5128 5078 5022 5128 5022 4925 4754 4658 4583

SK 872 - 100L/40 SK 872 - 112MH/4

201

54 / 55

* 9009 7691 6708 5947 5168 4505 4044 3540 3151 2814 2478

* 0.8 1.0 1.1 1.2 1.4 1.6 1.8 2.0 1.8 1.9 2.0

49.36 42.60 36.79 32.97 28.47 25.13 22.37 19.61 17.50 15.58 13.66

144 477 702 857 938 941 938 934 923 911 896

1148 1296 1391 1447 1492 1523 1526 1526 1523 1499 1478

1886 2014 2097 2147 2178 2198 2201 2196 2160 2106 2050

1859 1996 2090 2149 2196 2232 2237 2237 2232 2214 2189

SK 773 - 100L/40 SK 773 - 112MH/4

130

52 / 53

6434 6301 5434 4850 4505 4319 3797 3354 3151 2894 2867 2460 2186 1859

1.1 1.1 1.1 1.1 1.6 1.7 1.9 2.1 1.5 2.1 1.6 1.7 1.8 1.9

35.64 34.05 30.31 26.71 24.72 23.62 21.02 18.53 17.36 15.89 15.66 13.54 12.10 10.23

311 425 756 855 1402 1517 1645 1602 1618 1562 1591 1541 1503 1449

286 398 713 806 1328 1438 1514 1501 1658 1575 1694 1726 1746 1748

2653 2660 2702 2727 2741 2747 2763 2777 2781 2788 2788 2797 2801 2808

2716 2745 2750 2716 2844 2858 2831 2772 2844 2750 2831 2799 2754 2693

SK 772 - 100L/40 SK 772 - 112MH/4

127

52 / 53

III

17 19 22 23 24 28 31 35 40 43 49 55 66 74 89 32 38 42 47 54 61 92 104 114 35 41 47 53 61 70 78 89 100 112 127 49 50 58 65 70 73 83 94 100 109 110 128 144 170

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP]

Service factor

Red. Ratio

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

[LBS]

Dimensions page

1646 1460 1283 1230 1089

1.9 2.0 2.0 2.1 2.1

9.11 8.10 7.14 6.83 6.02

1400 1361 1310 1303 1253

1719 1710 1661 1685 1631

2810 2813 2815 2815 2817

2633 2583 2507 2507 2430

SK 772 - 100L/40 SK 772 - 112MH/4

127

52 / 53

* 7328 * 6301 5345 5089 4779 4257 3797 3354 2974

* 0.8 * 0.9 1.0 1.1 1.2 1.3 1.5 1.6 1.8

39.62 33.55 29.53 28.05 26.06 23.20 20.90 18.45 16.42

22 63 95 171 266 412 529 635 711

1003 1119 1217 1233 1258 1296 1323 1325 1325

1420 1559 1658 1685 1712 1760 1782 1800 1807

1294 1433 1550 1571 1600 1647 1679 1703 1715

SK 673 - 100L/40 SK 673 - 112MH/4

116

52 / 53

* 6062 * 5345 4637 3938 3540 3425 3151 2788 2522 2186 1903 1699 1505 1434 1336 1133 991 867

* 0.8 * 0.9 1.1 1.3 1.5 1.1 1.5 1.5 1.6 1.7 1.7 1.7 1.8 1.7 1.9 1.9 2.0 2.1

32.82 28.55 25.32 21.51 19.45 18.86 17.42 15.44 13.87 12.09 10.52 9.33 8.31 7.93 7.37 6.26 5.49 4.80

71 115 165 212 284 405 644 763 909 1010 983 956 941 925 916 882 857 833

43 87 127 181 268 302 626 736 882 997 1031 1031 1060 1049 1073 1076 1082 1076

2111 2165 2212 2250 2268 2273 2284 2297 2306 2318 2324 2329 2331 2333 2336 2338 2340 2340

2050 2156 2194 2261 2381 2239 2446 2419 2419 2410 2381 2331 2309 2286 2273 2212 2165 2117

SK 672 - 100L/40 SK 672 - 112MH/4

116

52 / 53

66 73 83 92 106

* 4779 * 4319 3797 3425 2974

* 0.8 * 0.9 1.0 1.2 1.3

25.60 23.10 20.90 18.86 16.37

30 35 72 88 108

44 170 385 698 1391

1458 1494 1535 1562 1575

1616 1667 1721 1753 1784

SK 573 - 100L/40 SK 573 - 112MH/4

52 / 53

64 73 86 92 96 102

* 4929 * 4319 3664 3425 3283 3089 2814 2788 2540 2301 1903 1673 1513 1310 1142 1018 876

* 0.8 * 0.9 1.1 1.0 1.2 1.0 1.4 1.0 1.5 1.5 1.7 1.8 1.8 1.8 1.8 1.9 1.9

26.70 23.16 20.17 18.44 17.98 16.63 15.59 15.04 14.02 12.68 10.45 9.22 8.34 7.23 6.30 5.61 4.82

0 35 98 134 144 172 194 205 227 290 529 626 637 623 608 596 576

0 100 279 383 411 492 554 587 648 675 837 898 889 918 918 929 927

203 524 986 1553 1510 1805 1852 1910 2192 2243 2475 2475 2475 2475 2475 2475 2475

3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375

SK 572 - 100L/40 SK 572 - 112MH/4

52 / 53

5.00

AGMA II

[LBS]

III

192 216 245 256 290 43 50 59 62 66 74 83 94 106 52 59 68 80 89 92 100 113 125 144 166 186 209 220 236 278 317 362

112 113 124 137 166 188 208 241 276 310 361

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Type

Weight approx. Mounting position B3

[LB-IN]

itotal

Standard bearing

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

5.00

AGMA II

T2 [LB-IN]

itotal

Axial HD bearing 2)

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

[LBS]

0.8 0.8 0.8 0.8 0.9 0.9 1.0 1.0 1.2 1.3 1.4 1.6 1.8 1.9 1.9 2.0 2.1 2.0 2.1

20.17 18.44 17.98 16.63 15.59 15.04 14.02 12.68 10.45 9.22 8.34 7.23 6.30 5.61 4.82 4.23 3.63 3.17 2.73

112 133 153 173 190 213 235 250 520 639 666 745 736 722 698 680 659 630 610

355 360 370 401 456 473 594 619 790 855 855 882 891 902 900 909 900 846 835

864 1523 1483 1827 1892 1951 2284 2347 2475 2475 2475 2475 2475 2475 2475 2475 2414 2320 2232

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 472 - 100L/40 SK 472 - 112MH/4

50 / 51

* 0.8 * 0.9 1.0 1.0 1.1 1.2 1.3 1.4 1.6 1.7 1.6 1.7 1.6 1.7

9.90 8.65 7.64 6.75 6.34 5.62 4.96 4.57 4.05 3.52 3.19 2.77 2.17 1.88

87 110 129 145 153 166 178 186 195 205 214 268 263 295

63 100 130 156 168 190 209 275 290 331 329 360 335 349

909 929 945 954 959 968 972 977 979 983 986 988 990 990

709 767 792 826 826 826 846 873 864 869 853 851 803 794

SK 372 - 100L/40 SK 372 - 112MH/4

50 / 51

371 418 481 530 611 780 900

* 1832 * 1611 1416 1257 1186 1044 920 850 752 655 593 513 407 354

* 0.8 * 0.9 1.0 1.0 1.2 1.3 1.4 1.6 1.7 1.6 1.7 1.6 1.7

8.65 7.64 6.75 6.34 5.62 4.96 4.57 4.05 3.52 3.19 2.77 2.17 1.88

15 67 101 115 122 137 151 160 171 185 241 241 275

63 100 139 164 199 227 252 268 311 308 342 317 338

1055 1085 1123 1121 1116 1139 1175 1157 1159 1134 1130 1064 1049

767 792 826 826 826 846 873 864 869 853 851 803 794

SK 272 - 100L/40 SK 272 - 112MH/4

50 / 51

371 418 481 530 611 780 900

* 1611 * 1416 1257 1186 1044 920 850 752 655 593 513 407 354

1.0 1.1 1.2 1.4

105.37 95.04 83.00 77.24

2678 2858 3116 3366

5850 5850 5850 5850

6068 6246 6512 6779

9000 9000 9000 9000

SK 973 - 132S/4 SK 973 - 132SH/4

342

54 / 55

27816 26267 23647 20559

86 92 96 102 112 113 124 137 166 188

* * * * * *

412 479 548 637 172 196 222 251 266 301 341

196 222 251 266 301 341

17 18 20

3664 3425 3283 3089 2814 2788 2540 2301 1903 1673 1513 1310 1142 1018 876 761 655 575 496

* * * * * *

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III

III

208 241 276 310 361

7.50

Radial HD bearing

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

7.50

Service factor

Red. Ratio

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

itotal

[LBS]

Dimensions page

[LB-IN]

fB 1.5 1.8 2.0 2.4 2.5 2.8 2.9 3.4 3.6

67.45 59.18 52.01 44.15 42.27 37.09 35.88 30.80 27.50

3479 3661 3749 3832 3843 3890 3866 3746 3616

5850 5850 5850 5850 5850 5850 5850 5850 5850

6903 7108 7207 7304 7315 7371 7387 7425 7454

9000 9000 9000 9000 9000 9000 9000 9000 9000

SK 973 - 132S/4 SK 973 - 132SH/4

342

54 / 55

34 40 41 47 49 56 64

18912 15762 13912 11824 11532 10062 9647 8443 7390

1.6 1.9 2.1 2.7 3.2

46.91 39.59 36.41 30.73 26.57

3818 3706 3641 3512 3380

3092 3092 3150 3121 3067

6147 6174 6188 6203 6217

6966 6867 6876 6734 6586

SK 972 - 132S/4 SK 972 - 132SH/4

343

54 / 55

48 56 66

12779 11001 9850 8443 7169

* 0.8 * 0.9 1.0 1.1 1.3 1.4 1.5 1.7 2.1 2.3 2.7 2.9

70.89 63.95 55.32 49.43 43.75 39.91 35.32 31.42 26.49 23.38 19.72 16.69

770 1436 1676 1879 2034 2099 2194 2255 2324 2358 2394 2329

4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4275 4120

3393 3899 4133 4345 4518 4592 4700 4772 4856 4896 4941 4968

7875 7875 7875 7875 7875 7875 7875 7875 7875 7875 7749 7445

SK 873 - 132S/4 SK 873 - 132SH/4

244

54 / 55

66 74 89 104

* 19700 * 16886 15257 13514 11824 11001 9647 8593 7169 6390 5310 4549

1.3 1.6 1.8 2.0 2.3 2.5 2.5 2.7 2.9 2.9 3.0 3.2 3.2

36.68 31.83 28.34 24.90 22.16 18.77 18.32 16.78 15.25 14.56 13.23 11.61 10.34

2808 2745 2669 2642 2567 2531 2477 2468 2419 2376 2324 2255 2180

1199 1251 1289 1413 1418 1532 1465 1548 1557 1535 1537 1535 1508

4955 4986 5006 5022 5036 5047 5049 5054 5058 5060 5063 5067 5069

4196 4190 4169 4271 4203 4284 4169 4237 4203 4142 4104 4019 3935

SK 872 - 132S/4 SK 872 - 132SH/4

241

54 / 55

70 79 92 95 104 114 120 132 151 169

10062 8753 7753 6753 5983 5142 4974 4549 4151 3938 3584 3133 2797

* 0.8 * 0.9 1.1 1.2 1.3 1.5 1.6 1.8

32.97 28.47 25.13 22.37 19.61 17.50 15.58 13.66

150 160 277 443 608 729 767 770

145 788 898 974 1046 1089 1123 1139

1438 1564 1674 1728 1782 1820 1838 1854

1386 1535 1649 1717 1787 1823 1859 1877

SK 773 - 132S/4 SK 773 - 132SH/4

170

52 / 53

100 112 127

* 8921 * 7753 6753 6062 5310 4726 4221 3726

1.1 1.1 1.3 1.4

24.72 23.62 21.02 18.53

270 279 282 300

210 237 256 290

2637 2651 2691 2720

2129 2171 2201 2194

SK 772 - 132S/4 SK 772 - 132SH/4

166

52 / 53

6753 6478 5699 5027

AGMA II

[LBS]

III

25 30

37 43

24 28 31 35 40 43 49 55

47 54 61

53 61 70 78 89

70 73 83

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III www.nord.com

Type

Weight approx. Mounting position B3

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP]

FA N Thrust

F Q VL OHL

FA AL Thrust

itotal

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

4726 4337 4301 3690 3283 2779 2460

1.0 1.4 1.1 1.7 1.9 2.1 2.3

17.36 15.89 15.66 13.54 12.10 10.23 9.11

578 448 817 1134 1337 1343 1301

527 412 758 1082 1238 1330 1341

2732 2745 2747 2768 2779 2790 2797

2338 2250 2365 2403 2403 2403 2360

SK 772 - 132S/4 SK 772 - 132SH/4

166

52 / 53

66 74 83 94 106

* 7169 * 6390 5699 5027 4460

* 0.8 * 0.9 1.0 1.1 1.2

26.06 23.20 20.90 18.45 16.42

150 162 179 189 215

327 433 605 712 889

1037 1166 1258 1337 1400

941 1053 1154 1238 1303

SK 673 - 132S/4 SK 673 - 132SH/4

155

52 / 53

100 113 125

4726 4186 3779 3283 2850 2540 2266 2151 2000 1699 1496 1310 1142 1071 938 788

1.0 1.0 1.1 1.4 1.7 1.8 2.0 2.2 2.2 2.7 2.8 3.0 3.0 3.2 3.2 3.2

17.42 15.44 13.87 12.09 10.52 9.33 8.31 7.93 7.37 6.26 5.49 4.80 4.20 3.93 3.45 2.91

230 235 241 232 254 360 531 560 691 803 785 770 743 743 716 689

201 212 217 207 245 342 509 542 671 774 808 839 830 866 851 848

2205 2237 2257 2279 2295 2306 2315 2318 2322 2329 2331 2336 2338 2338 2340 2333

1847 1868 1924 1982 2005 1985 1991 1982 2003 1973 1953 1933 1883 1886 1832 1778

SK 672 - 132S/4 SK 672 - 132SH/4

155

52 / 53

92 106

* 5142 * 4460

* 0.8 * 0.9

18.86 16.37

100 111

132 132

1094 1177

1199 1303

SK 573 - 132S/4 SK 573 - 132SH/4

138

52 / 53

124 137 166 188

1.0 1.0 1.2 1.3 1.5 1.6 1.8 2.0 2.1 2.4 2.8

14.02 12.68 10.45 9.22 8.34 7.23 6.30 5.61 4.82 4.23 3.63

49 66 133 165 170 195 263 362 441 506 497

300 300 345 377 371 464 509 569 610 641 675

473 646 1323 1584 1656 1843 1926 2050 2120 2187 2237

3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375

SK 572 - 132S/4 SK 572 - 132SH/4

136

52 / 53

310 361 412 479

3814 3452 2850 2513 2274 1965 1717 1522 1310 1151 991

* 0.8 * 0.8 * 0.9 1.0 1.2 1.3 1.5 1.7 1.8 2.1 2.3

10.45 9.22 8.34 7.23 6.30 5.61 4.82 4.23 3.63 3.17 2.73

142 171 185 200 221 344 439 520 596 574 563

330 347 392 421 464 531 576 614 650 612 637

1312 1618 1692 1922 2027 2183 2257 2342 2322 2230 2158

3263 3263 3263 3263 3263 3263 3263 3263 3263 3263 3263

SK 472 - 132S/4 SK 472 - 132SH/4

136

50 / 51

548 637

* 2850 * 2513 * 2274 1965 1717 1522 1310 1151 991 867 743 * 37090

* 0.8

105.37

198

5850

4597

9000

SK 973 - 132M/4 SK 973 - 132MH/4

366

54 / 55

AGMA II

[LBS]

III

100 110 128 144 170 192

144 166 186 209 220 236 278 317 362 414 443 504 598

208 241 276

166 188 208 241 276 310 361 412 479

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0

I II III

Axial HD bearing

FQ N OHL

109

10.0

[LB-IN]

7.50

Radial HD bearing

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

10.0

AGMA II

Service factor

Red. Ratio

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

itotal

[LBS]

Dimensions page

[LB-IN]

[LBS]

* 0.8 * 0.9 1.0 1.1 1.3 1.5 1.8 1.8 2.1 2.2 2.5 2.7 2.7 2.8 2.7 2.8

95.04 83.00 77.24 67.45 59.18 52.01 44.15 42.27 37.09 35.88 30.80 27.50 24.20 21.37 20.54 18.14

1341 2135 2725 2966 3332 3501 3661 3679 3697 3679 3573 3472 3380 3278 3247 3152

5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5850 5675

5000 5576 6116 6356 6743 6930 7108 7128 7232 7259 7326 7380 7416 7445 7394 7250

9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000 9000

SK 973 - 132M/4 SK 973 - 132MH/4

366

54 / 55

47 49 56 64 72 82 85 96

* 35028 * 31524 27417 25223 21019 18541 15762 15381 13417 12868 11257 9850 8753 7691 7416 6567

1.2 1.4 1.5 2.0 2.4 2.4 2.7 2.5 2.6

46.91 39.59 36.41 30.73 26.57 22.62 22.53 20.37 17.77

3479 3407 3389 3292 3182 3132 3074 3067 2972

2446 2522 2655 2684 2689 2790 2680 2790 2768

6066 6113 6140 6170 6192 6208 6208 6215 6224

6010 6021 6147 6089 6010 6068 5886 6010 5895

SK 972 - 132M/4 SK 972 - 132MH/4

367

54 / 55

56 66 77 78 85 98

17036 14664 13133 11257 9549 8186 8080 7416 6434

* 0.8 * 0.9 1.0 1.2 1.3 1.6 1.7 2.0 2.2

49.43 43.75 39.91 35.32 31.42 26.49 23.38 19.72 16.69

1224 1609 1751 1942 2066 2198 2259 2295 2230

4192 4239 4275 4246 4232 4147 4073 3944 3827

3713 4064 4210 4415 4552 4707 4777 4860 4910

7875 7875 7875 7875 7875 7875 7700 7409 7153

SK 873 - 132M/4 SK 873 - 132MH/4

268

54 / 55

89 104

* 18019 * 15762 14664 12868 11461 9549 8523 7080 6062

1.0 1.2 1.3 1.5 1.7 1.9 1.9 2.0 2.1 2.2 2.3 2.4 2.4 2.6 2.6 2.8

36.68 31.83 28.34 24.90 22.16 18.77 18.32 16.78 15.25 14.56 13.23 11.61 10.34 9.64 8.58 7.58

1769 2320 2399 2410 2356 2367 2304 2322 2293 2250 2214 2156 2086 2068 2003 1953

594 709 783 990 1031 1226 1143 1276 1307 1289 1316 1343 1330 1357 1343 1357

2538 3080 3434 4331 4527 5022 4993 5033 5040 5045 5051 5056 5060 5063 5067 5069

3278 3357 3418 3614 3614 3818 3674 3823 3818 3762 3751 3722 3650 3668 3580 3546

SK 872 - 132M/4 SK 872 - 132MH/4

265

54 / 55

104 114 120 132 151 169 181 204 232

13417 11673 10337 9009 7983 6850 6638 6062 5531 5257 4779 4177 3735 3487 3089 2717 * 9009 * 8080 7080 6301 5629

* 0.8 * 0.9 1.0 1.1 1.2

25.13 22.37 19.61 17.50 15.58

20 43 101 122 293

104 209 431 668 740

1121 1247 1366 1442 1503

1073 1202 1330 1427 1490

SK 773 - 132M/4 SK 773 - 132MH/4

194

52 / 53

III

18 20 23 25 30 34 40 41

37 43 48

35 40 43 49 55 66 74

47 54 61 70 79 92 95

70 78 89 100 112

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0 I II III www.nord.com

Type

Weight approx. Mounting position B3

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP]

Weight approx. Mounting position B3

Dimensions page

FA N Thrust

F Q VL OHL

FA AL Thrust

itotal

[LBS]

1571 1908 2358 2558 2687 2689 2725 2745 2765 2779 2788 2795 2797

1404 1481 1586 1607 1746 1904 2003 2050 2106 2086 2097 2054 2097

SK 772 - 132M/4 SK 772 - 132MH/4

191

52 / 53

Type

* 9009 * 8638 7593 6708 5788 5735 4929 4381 3708 3283 2921 2575 2460

* 0.8 * 0.8 1.0 1.0 1.1 0.8 1.3 1.4 1.6 1.7 1.9 2.1 2.1

24.72 23.62 21.02 18.53 15.89 15.66 13.54 12.10 10.23 9.11 8.10 7.14 6.83

160 191 240 260 271 280 287 320 740 855 1049 1078 1154

94 106

* 6708 * 5947

* 0.8 * 0.9

18.45 16.42

86 103

81 98

864 981

770 884

SK 673 - 132M/4 SK 673 - 132MH/4

179

52 / 53

100 113 125 144 166

* 6301 * 5576 * 5045 4381 3797 3390 3018 2867 2673 2266 1991 1743 1522 1425 1248 1053

* 0.8 * 0.8 * 0.8 1.1 1.3 1.4 1.5 1.7 1.7 2.0 2.1 2.2 2.3 2.4 2.4 2.4

17.42 15.44 13.87 12.09 10.52 9.33 8.31 7.93 7.37 6.26 5.49 4.80 4.20 3.93 3.45 2.91

35 70 122 223 227 231 234 240 242 242 403 556 601 691 671 648

20 78 131 160 169 169 172 172 185 209 387 542 587 677 677 693

1208 1537 1935 2225 2257 2275 2291 2295 2302 2315 2322 2327 2331 2333 2336 2248

1242 1321 1431 1544 1636 1636 1685 1685 1721 1737 1746 1755 1719 1737 1703 1658

SK 672 - 132M/4 SK 672 - 132MH/4

179

52 / 53

* 3797 3354 3036 2620 2283 2036 1743 1531 1319 1151 991

* 0.9 1.0 1.1 1.2 1.3 1.5 1.6 1.8 2.1 1.9 2.2

10.45 9.22 8.34 7.23 6.30 5.61 4.82 4.23 3.63 3.17 2.73

39 44 74 101 130 142 183 190 290 286 367

340 342 343 351 356 360 378 378 446 423 468

– 437 590 941 1127 1330 1508 1656 1782 1730 1811

3375 3375 3375 3375 3375 3375 3375 3375 3375 3375 3375

SK 572 - 132M/4 SK 572 - 132MH/4

161

52 / 53

* 0.8 * 0.9 1.0 1.1 1.2 1.4 1.5 1.7

7.23 6.30 5.61 4.82 4.23 3.63 3.17 2.73

92 98 113 118 133 272 266 367

330 332 337 339 342 412 392 441

887 1116 1359 1562 1746 1899 1832 1940

3263 3263 3263 3263 3263 3263 3263 3263

SK 472 - 132M/4 SK 472 - 132MH/4

161

50 / 51

479 548 637

* 2620 * 2283 2036 1743 1531 1319 1151 991

* 0.9 1.2 1.4 1.5

59.18 42.27 37.09 35.88

2135 3168 3278 3269

5450 5618 5618 5618

5576 6568 6813 6876

9000 9000 9000 9000

SK 973 - 160M/4 SK 973 - 160MH/4

441

54 / 55

47 49

* 31524 23063 20125 19302

AGMA II

[LBS]

III

70 73 83 94 109 110 128

245 256

186 209 220 236 278 317 362 414 443 504 598 166 188 208 241 276 310 361 412 479 548 637 241 276 310 361 412

30 41

131 137 142154 164 177 202 304 691 815 997 1028 1107

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0 I II III

Axial HD bearing

FQ N OHL

144 170 192 216

15.0

[LB-IN]

10.0

Radial HD bearing

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP] I

15.0

AGMA II

Red. Ratio

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

itotal

[LBS]

Dimensions page

[LB-IN]

16886 14780 13133 11532 11124

1.7 1.9 2.1 2.2 2.2

30.80 27.50 24.20 21.37 20.54

3229 3175 3119 3049 3026

5564 5468 5398 5254 5236

6905 6881 6838 6773 6768

9000 9000 9000 9000 9000

SK 973 - 160M/4 SK 973 - 160MH/4

441

54 / 55

19700 16886 14328 12284 12125 11124 9647 8372 7505 6664 6345 5629

1.0 1.3 1.6 2.0 1.8 2.1 2.3 2.5 2.7 2.9 2.9 3.3

36.41 30.73 26.57 22.62 22.53 20.37 17.77 15.46 13.96 12.41 11.79 10.47

2853 2828 2788 2813 2723 2788 2727 2666 2617 2554 2516 2455

1667 1820 1935 2169 2018 2232 2286 2324 2333 2342 2315 2309

5594 6068 6120 6154 6156 6172 6190 6206 6215 6221 6224 6228

4667 4811 4871 5128 4903 5162 5171 5162 5121 5072 5015 4959

SK 972 - 160M/4 SK 972 - 160MH/4

442

54 / 55

* 19302 * 17196 14328 12779 10629 9098

* 0.8 * 0.9 1.0 1.2 1.3 1.5

35.32 31.42 26.49 23.38 19.72 16.69

902 1384 1791 1951 2043 2012

2909 3029 3152 3193 3218 3186

3474 3850 4250 4424 4624 4739

7106 7083 7004 6928 6761 6602

SK 873 - 160M/4 SK 873 - 160MH/4

343

54 / 55

1.0 1.1 1.2 1.3 1.4 1.6 1.7 1.9 2.1 2.2 2.4 2.7 2.9 2.9 3.0 3.1

24.90 22.16 18.32 16.78 15.25 14.56 13.23 11.61 10.34 9.64 8.58 7.58 6.75 6.34 5.57 4.92

296 410 1481 2014 2009 1973 1962 1937 1892 1895 1845 1816 1769 1748 1699 1654

243 251 495 729 808 799 869 952 970 1031 1042 1098 1096 1098 1114 1118

464 1037 2113 3218 3573 3510 3814 4156 4246 4516 4545 4813 4770 4772 4662 4545

2345 2444 2682 2993 3056 3026 3069 3123 3103 3164 3123 3155 3103 3085 3056 3006

SK 872 - 160M/4 SK 872 - 160MH/4

340

54 / 55

169 181 204 232 259 276 314 356

13514 11974 9956 9098 8292 7885 7169 6266 5593 5222 4637 4080 3655 3425 3009 2655

1.0 1.1 1.3 1.4 1.4 1.6 1.8 2.1 2.3 2.5 2.3 2.5

10.23 9.11 8.10 7.14 6.83 6.02 5.16 4.37 3.81 3.22 2.81 2.38

270 278 285 291 290 303 484 736 704 884 851 828

147 153 167 168 172 191 452 707 671 815 790 833

2696 2725 2745 2761 2768 2779 2781 2732 2621 2563 2468 2405

1510 1553 1618 1618 1692 1672 1703 1721 1656 1658 1604 1591

SK 772 - 160M/4 SK 772 - 160MH/4

266

52 / 53

400 458 542 622 733

5567 4929 4381 3859 3690 3257 2797 2363 2062 1743 1522 1292

* 30754 26833 25736

* 0.9 1.1 1.1

42.27 37.09 35.88

2266 2795 2840

4271 4446 4460

5351 5643 5697

9000 9000 9000

SK 973 - 160L/4 SK 973 - 160LH/4

474

54 / 55

56 64

48 56 66 77 78 85 98 113 126 142 149 168 49 55 66 74 89 104 70 79 95 104 114 120 132 151

170 192 216 245 256 290 338

41 47 49

[LBS]

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0 I II III www.nord.com

Type

Weight approx. Mounting position B3

III

72 82 85

20.0

Service factor

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP]

FA N Thrust

F Q VL OHL

FA AL Thrust

itotal

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

22514 19700 17514 15381 14833 13133

1.3 1.4 1.6 1.7 1.7 1.8

30.80 27.50 24.20 21.37 20.54 18.14

2860 2858 2842 2810 2799 2761

4583 4599 4606 4583 4583 4511

5875 6003 6059 6082 6089 6073

9000 9000 9000 9000 9000 9000

SK 973 - 160L/4 SK 973 - 160LH/4

474

54 / 55

16373 14833 12868 11160 10009 8877 8461 7505 6496 6177

1.5 1.6 1.7 1.9 2.0 2.2 2.2 2.4 2.4 2.3

22.62 20.37 17.77 15.46 13.96 12.41 11.79 10.47 9.05 8.64

2477 2480 2471 2444 2417 2381 2356 2309 2237 2201

1564 1670 1802 1901 1960 2007 1996 2021 2018 1982

5288 5758 6145 6172 6185 6199 6203 6215 6221 6226

4210 4340 4446 4525 4570 4570 4525 4525 4439 4390

SK 972 - 160L/4 SK 972 - 160LH/4

475

54 / 55

66 74 89 104

* 19107 * 17036 14169 12125

* 0.8 * 0.9 1.0 1.1

26.49 23.38 19.72 16.69

959 1411 1773 1782

2187 2324 2498 2574

3512 3875 4271 4417

6143 6152 6131 6073

SK 873 - 160L/4 SK 873 - 160LH/4

376

54 / 55

104 114 120 132

12125 11063 10505 9549 8354 7461 6965 6177 5434 4868 4567 4018 3540 3044 2726 2398 2115

1.0 1.1 1.2 1.3 1.4 1.6 1.6 1.8 2.0 2.2 2.2 2.3 2.4 2.1 2.2 2.3 2.4

16.78 15.25 14.56 13.23 11.61 10.34 9.64 8.58 7.58 6.75 6.34 5.57 4.92 4.23 3.78 3.33 2.94

227 700 707 1242 1717 1694 1712 1681 1679 1640 1622 1593 1562 1472 1445 1409 1377

222 239 245 425 560 608 709 745 851 862 875 916 947 887 907 923 932

675 1289 1280 1818 2455 2673 3119 3258 3717 3778 3841 4010 4136 3863 3940 3956 3857

2147 2300 2275 2394 2529 2552 2666 2678 2765 2743 2738 2747 2743 2601 2599 2570 2545

SK 872 - 160L/4 SK 872 - 160LH/4

373

54 / 55

* 7416 * 6567 5841 5151 4929 4345 3735 3151 2752 2328 2027 1717

* 0.8 * 0.8 1.0 1.0 1.1 1.2 1.4 1.6 1.7 1.8 1.7 1.9

10.23 9.11 8.10 7.14 6.83 6.02 5.16 4.37 3.81 3.22 2.81 2.38

80 101 143 198 216 223 227 235 241 250 277 495

76 103 122 163 198 201 209 219 225 230 261 479

659 1060 1598 1773 2225 2336 2500 2495 2396 2374 2291 2255

925 1015 1134 1170 1283 1296 1375 1447 1395 1436 1397 1418

SK 772 - 160L/4 SK 772 - 160LH/4

299

52 / 53

* 33542 28143 24630 21895 19222

* 0.8 1.0 1.1 1.3 1.3

37.09 30.80 27.50 24.20 21.37

1735 2482 2525 2558 2558

3278 3593 3746 3861 3935

4381 4831 5094 5261 5393

9000 9000 9000 9000 8917

SK 973 - 180M/4 SK 973 - 180MH/4

536

54 / 55

AGMA II

[LBS]

III

77 85 98 113 126 142 149 168 194 204

151 169 181 204 232 259 276 314 356 414 463 526 596 170 192 216 245 256 290 338 400 458 542 622 733

47 56 64 72 82

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0 I II III

Axial HD bearing

FQ N OHL

64 72 82 85 96

25.0

[LB-IN]

20.0

Radial HD bearing

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

n2 [RPM]

[HP]

Standard bearing

Radial HD bearing

Axial HD bearing

FQ N 1) OHL

FA N 2) Thrust

F Q VL1) OHL

FA AL2) Thrust

itotal

[LBS]

Dimensions page

[LBS]

18541 16417

1.3 1.4

20.54 18.14

2558 2547

3935 3949

5432 5486

8874 8732

SK 973 - 180M/4 SK 973 - 180MH/4

536

54 / 55

1.4 1.5 1.6 1.7 1.8 2.0 2.2 2.4 2.6 2.9

17.77 15.46 13.96 12.41 11.79 10.47 9.05 8.64 7.68 6.75

2203 2216 2214 2207 2178 2160 2108 2072 2039 2000

1316 1487 1584 1681 1661 1733 1753 1733 1766 1791

4444 5103 5506 5882 5841 6134 6118 6035 5918 5774

3728 3899 4007 4084 4046 4084 4057 4007 4007 4007

SK 972 - 180M/4 SK 972 - 180MH/4

537

54 / 55

168 194 204 229 262

16080 13948 12514 11098 10576 9381 8124 7726 6885 6018

1.1 1.3 1.3 1.5 1.6 1.8 2.0 2.2 2.4 2.2 2.4 2.5 2.6

11.61 10.34 9.64 8.58 7.58 6.75 6.34 5.57 4.92 4.23 3.78 3.33 2.94

430 500 1112 1422 1541 1508 1499 1487 1465 1382 1361 1337 1310

200 273 380 443 594 626 653 722 776 718 754 788 812

955 1019 1634 1928 2599 2745 2885 3166 3402 3143 3305 3449 3539

1935 2000 2167 2212 2378 2394 2401 2453 2480 2345 2360 2372 2360

SK 872 - 180M/4 SK 872 - 180MH/4

435

54 / 55

276 314 356 414 463 526 596

10443 9328 8708 7726 6797 6089 5708 5018 4425 3806 3407 3000 2646

56 64 72 82 85 96

* 33780 29559 26267 23063 22249 19700

* 0.8 1.0 1.0 1.1 1.1 1.2

30.80 27.50 24.20 21.37 20.54 18.14

1679 2174 2246 2300 2315 2331

2624 2903 3119 3278 3317 3386

3663 4183 4466 4698 4750 4896

8296 8350 8363 8350 8309 8255

SK 973 - 180L/4 SK 973 - 180LH/4

558

54 / 55

98 113

19302 16735 15010 13319 12691 11257 9753 9275 8257 7222 6301 5823 5168 4522

1.1 1.3 1.4 1.5 1.5 1.6 1.8 2.0 2.2 2.4 2.7 2.8 2.9 3.0

17.77 15.46 13.96 12.41 11.79 10.47 9.05 8.64 7.68 6.75 5.89 5.42 4.82 4.23

1928 1985 2005 2025 1998 1998 1969 1935 1924 1895 1861 1782 1757 1715

842 1064 1213 1343 1343 1442 1492 1474 1539 1595 1636 1537 1564 1584

2462 3443 4032 4583 4583 5009 5229 5159 5441 5582 5465 5270 5166 5047

3011 3274 3440 3580 3553 3656 3674 3627 3674 3697 3710 3546 3546 3519

SK 972 - 180L/4 SK 972 - 180LH/4

559

54 / 55

* 12523 11195 10452 9275 8151 7301 6850 6027

* 0.9 1.0 1.1 1.2 1.3 1.5 1.7 1.8

11.61 10.34 9.64 8.58 7.58 6.75 6.34 5.57

403 557 682 68 981 1226 1370 1373

140 177 220 23 340 392 434 527

1229 1247 1301 538 1463 1710 1877 2306

1341 1456 1676 1764 1994 2036 2061 2149

SK 872 - 180L/4 SK 872 - 180LH/4

457

54 / 55

III

98 113 126 142 149

151 169 181 204 232 259

126 142 149 168 194 204 229 262 300 325 366 418

151 169 181 204 232 259 276 314

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

* service factor < 1.0 I II III www.nord.com

Type

Weight approx. Mounting position B3

AGMA II

30.0

Red. Ratio

[LB-IN]

25.0

Service factor

= = =

fB fB fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

1) with FA = 0 Lb

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio.

HELICAL GEAR MOTORS THREE PHASE

Power

Output speed **

Output torque

Service factor

Red. Ratio

Normal bearing 1)

n2 [RPM] [HP] I

AGMA II

30.0

FQ N OHL

FA N Thrust

F Q VL OHL

FA AL Thrust

[LBS]

Type

Weight approx. Mounting position B3

Dimensions page

2.0 1.8 2.0 2.1 2.2

4.92 4.23 3.78 3.33 2.94

1368 1287 1278 1265 1247

601 549 601 655 695

2639 2408 2642 2869 3051

2216 2088 2129 2165 2185

SK 872 - 180L/4 SK 872 - 180LH/4

457

54 / 55

463 526 596

5310 4567 4089 3593 3177

1.0 1.1 1.1 1.2 1.4 1.5 1.6 1.8 2.0 2.1 2.4 2.6 2.7 2.9

13.96 12.41 11.79 10.47 9.05 8.64 7.68 6.75 5.89 5.42 4.82 4.23 3.70 3.02

790 1636 1620 1672 1676 1656 1679 1683 1685 1595 1586 1575 1555 1512

302 666 686 869 981 970 1087 1202 1289 1179 1251 1305 1348 1391

934 1901 1946 2714 3209 3184 3677 4140 4502 4100 4363 4606 4691 4518

2315 2585 2585 2788 2903 2871 3011 3114 3202 3011 3076 3110 3125 3119

SK 972 - 200L/4 SK 972 - 200LH/4

757

54 / 55

300 325 366 418 476 584

20019 17762 16930 15010 13001 12363 11009 9629 8408 7761 6894 6036 5301 4319

* 0.8 * 0.9 * 0.9 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.9 2.1 2.2 2.3

13.96 12.41 11.79 10.47 9.05 8.64 7.68 6.75 5.89 5.42 4.82 4.23 3.70 3.02

121 136 163 185 959 968 1413 1463 1490 1400 1418 1427 1427 1406

125 173 198 244 374 374 639 808 950 824 932 1033 1107 1193

1107 1230 1277 1354 1485 2176 2371 2574 3161 2693 3143 3555 3863 4205

1195 1589 1607 1928 2133 2133 2338 2536 2682 2484 2603 2700 2765 2833

SK 972 - 225S/4

779

54 / 55

418 476 584

* 25019 * 22205 * 21160 18762 16249 15452 13771 12036 10505 9700 8611 7540 6620 5399

356

126 142 149 168

126 142 149 168 194 204 229 262 300 325 366

* service factor < 1.0

I II III

Axial HD bearing

[LB-IN]

194 204 229 262

50.0

[LBS]

III

414

40.0

itotal

Radial HD bearing

= fB = fB = fB

0.8 - 1.39 1.4 - 1.99 ³ 2.0

higher speeds on request

1) with FA = 0 Lb

Gearmotors in Italics include an Energy Efficient Motor and have a “H” in the type

2) with FQ = 0 Lb

** Output speeds may be slightly different than shown. For precise speed calculate with the motor speed and the ratio. www.nord.com

EXPLANATORY NOTES

SHAFT / FLANGE TOLERANCES GEARED MOTORS AND GEARBOXES All tolerances and dimensions are subject to change.

OUTPUT AND INPUT SHAFT ENDS

Diameter tolerance : Diameter to 1.750 inch + .0000 - .0005 Diameter over 1.750 inch + .0000 - .0010

FLANGES Diameter tolerance of flange pilot (AK): Diameter to 9.0551 inch + .0010 - .0010 Diameter over 9.0551 inch + .0000 - .0020

www.nord.com

HELICAL GEAR MOTORS

DOUBLE AND TRIPLE REDUCTION

Mounting dimensions (foot)

Type

5.31

4.33

0.47

0.35

Outline dimensions

SK 172 - 63 S/L - 71 S/L - 80 S/L - 90 S/L SK 272 - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L SK 273 - 63 S/L - 71 S/L - 80 S/L SK 372 - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L SK 373 - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L SK 472 - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L - 112 M - 132 S/M SK 473 - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L

5.45

4.33

0.39

0.98

5.71

4.33

0.79

0.35

6.30

5.12

0.59

1.77

5.71 5.98

4.33 5.12

0.71 0.59

0.35 1.77

5.71

4.33

0.79

0.35

6.30

5.12

0.59

1.77

5.83

4.33

0.79

0.35

6.30

5.12

0.59

1.77

7.48

5.31

0.98

0.53

7.87

6.50

0.79

2.36

7.48 4.87

5.31 6.50

0.98 0.79

0.53 2.36

4.33 4.69 5.51 5.71 4.33 4.69 5.51 5.71 6.06 4.33 4.69 5.51 4.33 4.69 5.51 5.71 6.06 4.33 4.69 5.51 5.71 6.06 4.33 4.69 5.51 5.71 6.06 6.54 7.64 4.33 4.69 5.51 5.71 6.06

2.28

2.95

3.54

1.79

2.36

2.52

2.36

2.85

14.41 15.24 15.94 17.72 15.73 16.56 17.26 19.63 20.77 15.75 16.58 17.28 15.73 16.56 17.26 19.63 20.77 15.73 16.56 17.26 19.63 20.77 17.23 18.06 18.76 21.09 22.23 25.36 26.71 17.23 18.06 18.76 21.09 22.23

2.95

3.54

4.53

Shaft dimensions

5.12 5.71 6.50 7.28 5.12 5.71 6.50 7.28 7.99 5.12 5.71 6.50 5.12 5.71 6.50 7.28 7.99 5.12 5.71 6.50 7.28 7.99 5.12 5.71 6.50 7.28 7.99 8.98 10.47 5.12 5.71 6.50 7.28 7.99

7.56 8.39 9.09 10.87 7.56 8.39 9.09 10.87 12.01 7.56 8.39 9.09 7.56 8.39 9.09 10.87 12.01 7.56 8.39 9.09 10.87 12.01 7.56 8.39 9.09 10.87 12.01 12.83 16.18 7.56 8.39 9.09 10.87 12.01

1.65

5.51

0.750

Key 0.83

1.57

6.85

8.17 2.09

3/16 * 3/16 * 1 1.000 1.11 1.97

6.30 8.76 1/4 * 1/4 * 1-1/4

2.09

6.10

8.19

1.000

1.11

1.97

8.17

1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

6.30 8.76 1/4 * 1/4 * 1-1/4 8.17

2.09

1.000

1.11

1.97

6.30 8.76 1/4 * 1/4 * 1-1/4 9.67

2.52

1.250

1.36

2.36

8.27 10.22 10.53 9.67

2.52

1/4 * 1/4 * 1-5/8 1.250

1.36

2.36

7.87 10.22 1/4 * 1/4 * 1-5/8

See page 78 for metric shafts. Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL GEAR MOTORS

DOUBLE AND TRIPLE REDUCTION

Mounting dimensions (bolt-on B5 flange)

Outline dimensions

Shaft dimensions

Type AJ

SK 172 F - 63 S/L - 71 S/L - 80 S/L - 90 S/L SK 272 F - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L SK 273 F - 63 S/L - 71 S/L - 80 S/L

SK 372 F - 63 S/L - 71 S/L - 80 S/L SK 373 F - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L SK 472 F - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L - 112 M - 132 S/M SK 473 F - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L

3.94 4.53 5.12 6.5 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12

AK BB BD BF Standard shown in bold. Must specify BD dimension. 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35

0.39 0.39 0.39 0.47 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39

4.33 4.69 5.51 5.71 4.33 4.69 5.51 5.71 6.06 4.33 4.69 5.51

3.94 4.53 5.12 6.50 8.46 5.12 6.50 8.46 10.43

3.150 3.740 4.331 5.118 7.087 4.331 5.118 7.087 9.055

0.26 0.35 0.35 0.43 0.53 0.35 0.43 0.53 0.53

0.39 0.39 0.39 0.47 0.63 0.39 0.47 0.63 0.79

5.12 6.50 8.46 10.43

4.331 5.118 7.087 9.055

0.12 0.12 0.14 0.14 0.16 0.14 0.14 0.16 0.16

0.14 0.14 0.16 0.16

4.72 5.51 6.30 7.87 9.84 6.30 7.87 9.84 11.81

6.30 7.87 9.84 11.81

0.35 0.43 0.53 0.53

0.39 0.47 0.63 0.79

4.33 4.69 5.51 4.33 4.69 5.51 5.71 6.06 4.33 4.69 5.51 5.71 6.06 6.54 7.64 4.33 4.69 5.51 5.71 6.06

AD1

5.31

5.71

5.83

5.71 5.83

7.48

AH1

1.57

1.97

1.97 1.97

2.36

14.41 15.24 15.94 17.72 15.73 16.56 17.26 19.63 20.77 16.54 17.37 18.07

5.12 5.71 6.50 7.28 5.12 5.71 6.50 7.28 7.99 5.12 5.71 6.50

7.56 8.39 9.09 10.87 7.56 8.39 9.09 10.87 12.01 7.56 8.39 9.09

15.73 5.12 7.56 16.56 5.71 8.39 17.26 6.50 9.09 16.52 5.12 7.56 17.35 5.71 8.39 18.05 6.50 9.09 20.42 7.28 10.87 21.56 7.99 12.01 17.23 5.12 7.56 18.06 5.71 8.39 18.76 6.50 9.09 21.09 7.28 10.87 22.23 7.99 12.01 23.36 8.98 12.83 26.71 10.47 16.18 17.86 5.12 7.56 18.69 5.71 8.39 19.39 6.50 9.09 21.72 7.28 10.87 22.86 7.99 12.01

5.59

6.85

0.750

Key 0.83

1.57

3.03 3/16 * 3/16 * 1 1.000 1.11 1.97

8.17 6.38

3.62 8.76

6.18

8.98

3.62

1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

8.17 6.38

3.62 8.96

6.38

1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

3.62 9.55 1/4 * 1/4 * 1-1/4 1.250 1.36 2.36

9.67 8.35

4.61 10.22 10.53 1/4 * 1/4 * 1-5/8 1.250 1.36 2.36

10.30 8.35

4.61 10.85 1/4 * 1/4 * 1-5/8

See page 78 for metric shafts. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL GEAR MOTORS

DOUBLE AND TRIPLE REDUCTION

Mounting dimensions (foot)

Type

Outline dimensions

Shaft dimensions

1.375

Key SK 572 - 80 S/L - 90 S/L - 100 L

5.51

19.15

6.50

9.09

10.06

21.48 22.62 4.53

7.28 7.99

10.87 12.01

10.61

7.48

5.31

0.98

0.53

5.71 6.06

- 112 M - 132 S/M SK 573 - 63 S/L - 71 S/L - 80 S/L

7.87

6.50

0.79

2.36

6.54 7.64

23.76 27.11

8.98 12.83 10.47 16.18

10.93

5.31

0.98

0.53

17.62 18.45 19.15 4.53

5.12 5.71 6.50

7.56 8.39 9.09

10.06

7.48

4.33 4.69 5.51

- 90 S/L - 100 L - 112 M - 132 S/M

7.87

6.50

0.79

2.36

5.71 6.06

21.48 22.62

7.28 7.99

10.87 12.01

10.61

6.54 7.64 5.51

23.99 27.34 19.98

8.98 12.83 10.47 16.18 6.50 9.09

11.16

5.71 6.06 6.54 7.64

22.31 23.45 5.12 24.58 27.93

7.28 7.99 8.98 10.47

10.87 12.01 12.83 16.18

18.45 19.28 19.98 5.12 22.31 23.45

5.12 5.71 6.50 7.28 7.99

7.56 8.39 9.09 10.87 12.01

6.54 7.64

24.58 27.93

8.98 12.83 10.47 16.18

11.75

5.51

20.72

6.50

9.09

11.63

23.06 24.20 5.51

7.28 7.99

10.87 12.01

12.19

SK 672 - 80 S/L - 90 S/L - 100 L - 112 M - 132 S/M SK 673 - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L

8.27

5.91

1.18

0.53

9.25

7.68

0.98

2.36

8.27

5.91

1.18

0.53

9.25

7.68

0.98

2.36

- 112 M - 132 S/M SK 772 - 80 S/L

4.33 4.69 5.51 5.71 6.06

3.94

3.25

3.15

2.91

8.27

10.89 2.91

9.13

11.75 10.89 2.91

9.13

- 112 M

9.65

8.07

0.98

2.76

6.54

25.33

8.98

12.83

12.50

7.64 9.21

28.96 31.91

10.47 16.18 12.60 19.13

12.78

19.19 20.02 20.72

5.12 5.71 6.50

7.56 8.39 9.09

11.63

23.06 5.51 24.20

7.28 7.99

10.87 12.01

- 132 S/M

9.06

6.69

1.18

0.69

9.65

8.07

0.98

2.76

5.71 6.06

4.53

3.74

1.375

1.52

2.75

5/16 * 5/16 * 2-1/8 1.375

1.52

2.75

11.44

5.71 6.06

- 90 S/L - 100 L - 112 M

5/16 * 5/16 * 2-1/8

10.43

0.69

4.33 4.69 5.51

2.75

10.43

1.18

SK 773 - 63 S/L - 71 S/L - 80 S/L

1.52

11.44

6.69

- 132 S/M - 160 M/L

5/16 * 5/16 * 2-1/8 1.375

9.06

3.74

2.75

- 90 S/L - 100 L

4.53

1.52

3.31

9.92

5/16 * 5/16 * 2-1/8 1.625

1.79

3.15

11.30

3/8 * 3/8 * 2-1/4 1.625

1.79

3.15

11.30 12.19

6.54

25.33

8.98

12.83

12.50

7.64

28.96

10.47 16.18

12.78

3/8 * 3/8 * 2-1/4

See page 78 for metric shafts. Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL GEAR MOTORS

DOUBLE AND TRIPLE REDUCTION

Mounting dimensions (bolt-on B5 flange)

Outline dimensions

Shaft dimensions

Type AJ

SK 572 F - 80 S/L - 90 S/L - 100 L - 112 M - 132 S/M SK 573 F - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L

AK BB BD BF GA Standard shown in bold. Must specify BD dimension. 5.12 4.331 0.14 6.30 0.35 0.39 6.50 5.118 0.14 8.46 7.087 0.16

7.87 9.84

0.43 0.53

10.43 9.055 0.16 5.12 6.50 8.46 10.43

4.331 5.118 7.087 9.055

0.14 0.14 0.16 0.16

5.51

19.14

6.50

9.09

10.05

0.47 0.63

5.71 6.06

21.47 2.76 22.61

7.28 7.99

10.87 12.01 8.35

10.60

11.81 0.53

0.79

6.30 7.87 9.84 11.81

0.39 0.47 0.63 0.79

6.54 7.64 4.33 4.69 5.51 5.71 6.06

0.35 0.43 0.53 0.53

- 112 M - 132 S/M

6.50 5.118 0.14

7.87

0.43

0.47

5.51

- 90 S/L - 100 L

8.46 7.087 0.16 10.43 9.055 0.16

9.84 0.53 11.81 0.53

0.63 0.79

5.71 6.06

6.50 5.118 0.14 8.46 7.087 0.16 10.43 9.055 0.16

7.87 0.43 9.84 0.53 11.81 0.53

0.47 0.63 0.79

6.50 5.118 0.14

7.87

0.43

0.47

8.46 7.087 0.16 10.43 9.055 0.16

9.84 0.53 11.81 0.53

0.63 0.79

- 112 M - 132 S/M - 160 M/L SK 773 F - 63 S/L - 71 S/L - 80 S/L - 90 S/L - 100 L - 112 M - 132 S/M

7.48

8.27

6.54 7.64

- 90 S/L - 100 L - 112 M - 132 S/M SK 772 F - 80 S/L - 90 S/L - 100 L

7.48

6.54 7.64

SK 672 F - 80 S/L

- 112 M - 132 S/M SK 673 F - 63 S/L - 71 S/L - 80 S/L

AD1

6.50 5.118 0.14 8.46 7.087 0.16 10.43 9.055 0.16

7.87 0.43 9.84 0.53 11.81 0.53

0.47 0.63 0.79

4.33 4.69 5.51

AH1

23.75 8.98 12.83 27.10 10.47 16.18 18.25 5.12 7.56 19.08 5.71 8.39 2.76 19.78 6.50 9.09 8.35 22.00 7.28 10.87 23.24 7.99 12.01

4.61

19.97

6.50

9.09

10.88

2.76 22.30 23.44

7.28 7.99

10.87 9.13 10.43 11.43 5.28 12.01

7.28 7.99

10.87 12.01

12.38

6.54 7.64 5.51

25.53 8.98 12.83 28.88 10.47 16.18 20.72 6.50 9.09

12.70

7.64

7.28 7.99 8.98

11.83 9.13 10.43

1.375 1.52

2.75

5.28

11.63

5/16 * 5/16 * 2-1/8 1.625 1.79 3.15

10.87 12.19 12.01 9.92 11.30 5.51 12.83 12.50

28.96 10.47 16.18 31.91 12.60 19.13 19.82 5.12 7.56 20.65 5.71 8.39 21.35 6.50 9.09 3.15 23.69 24.83 25.96

2.75

5/16 * 5/16 * 2-1/8

23.25 24.39

9.06

1.375 1.52

11.75

5.71 6.06

5.71 6.06 6.54

5/16 * 5/16 * 2-1/8

11.56

7.28 7.99 8.98

2.75

5/16 * 5/16 * 2-1/8 1.375 1.52 2.75

24.39 8.98 12.83 27.74 10.47 16.18

23.06 3.15 24.20 25.33

11.23

7.56 8.39 9.09

7.64 9.21 4.33 4.69 5.51

Key 1.375 1.52

10.69

5.12 5.71 6.50

9.06

4.61

19.39 20.22 2.76 20.92

5.71 6.06 6.54

10.92

24.58 8.98 12.83 27.93 10.47 16.18

8.27

12.78 12.26

3/8 * 3/8 * 2-1/4 1.625 1.79 3.15

10.87 9.92 11.30 12.82 5.51 12.01 12.83 13.13

29.59 10.47 16.18

13.41

3/8 * 3/8 * 2-1/4

See page 78 for metric shafts. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL GEAR MOTORS

DOUBLE AND TRIPLE REDUCTION

Mounting dimensions (foot)

Type

Outline dimensions

7.28 7.99

10.87 12.01 12.83

Shaft dimensions

14.76

2.125

Key SK 872 - 90 S/L - 100 L

11.42

8.46

1.77

0.69

12.20 10.24

1.57

3.54

- 112 M - 132 S/M - 160 M/L - 180 M/L SK 873 - 90 S/L - 100 L

6.54

11.42

8.46

1.77

0.69

12.20 10.24

1.57

3.54

- 112 M - 132 S/M - 160 M/L SK 972 - 90 S/L - 100 L - 112 M - 132 S/M - 160 M/L

13.39

9.84

2.17

0.87

14.37 12.20

1.97

3.94

- 132 S/M - 160 M/L - 180 M/L

13.39

9.84

2.17

0.87

14.37 12.20

1.97

3.94

25.63 26.77 27.59 7.09

8.98

7.64 9.21 10.20

31.46 34.41 38.98

10.47 16.18 12.60 19.13 14.09 23.70

5.71 6.06

25.63 26.77

7.28 7.99

10.87 12.01 12.83

6.54

- 180 M/L - 200 L - 225 S SK 973 - 90 S/L - 100 L - 112 M

5.71 6.06 5.51

15.28 15.28 14.76

8.98

31.46 34.41

10.47 16.18 12.60 19.13

15.28

5.71 6.06 6.54

27.74 28.88 29.70

7.28 7.99 8.98

16.87

33.29 8.86 36.24

10.47 16.18 12.60 19.13

10.20 12.05 12.05

40.81 44.20 44.20

14.09 23.70 15.67 27.09 15.67 27.09

17.11

5.71 6.06 6.54

27.74 28.88 29.70

7.28 7.99 8.98

16.87

33.29 8.86 36.24

10.47 16.18 12.60 19.13

40.81

14.09 23.70

7.64 9.21 10.20

6.30

5.22

3.94

12.76 14.41 15.04

27.87 7.09

6.30

4.53

4.13

7.64 9.21

5.51

4.53

2.35

4.13

2.35

3.94

12.76 14.41 15.04

10.87 12.01 12.83 4.96

1/2 * 1/2 * 2-5/8 2.125

1/2 * 1/2 * 2-5/8 2.375

2.65

4.72

15.67 17.68 17.11

5/8 * 5/8 * 3-1/4

10.87 12.01 12.83 4.96

2.375

2.65

4.72

15.67 17.68 17.11 17.11

5/8 * 5/8 * 3-1/4

See page 78 for metric shafts Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL GEAR MOTORS

DOUBLE AND TRIPLE REDUCTION

Flange BD = 17.72

Mounting dimensions (bolt-on B5 flange)

Outline dimensions

Shaft dimensions

Type AJ

SK 872 F - 90 S/L - 100 L - 112 M - 132 S/M - 160 M/L - 180 M/L SK 873 F - 90 S/L - 100 L - 112 M

AK BB BD BF GA Standard shown in bold. Must specify BD dimension. 8.46 7.087 0.16 9.84 0.53 0.63 10.43 9.055 0.16 11.81 0.53 0.79 11.81 9.843 0.20 13.78 0.69 0.79

5.71 25.63 6.06 26.77 6.54 11.42 3.94 27.59

7.28 7.99 8.98

Key 10.87 14.76 2.125 2.35 12.01 12.83 12.76 14.41 15.04 7.09

7.64 9.21 10.20

31.46 10.47 16.18 34.41 12.60 19.13 38.98 14.09 23.70 25.99 27.13

10.87 12.01

3.94

15.28 15.28 15.12

1/2 * 1/2 * 2-5/8

5.71 6.06

11.81

9.843 0.20 13.78 0.69

0.79

6.54 11.42 3.94 27.95 8.98 12.83 12.76 14.41 15.04 7.09 7.64 31.81 10.47 16.18 15.63 9.21 34.76 12.60 19.13

10.43 9.055 0.16 11.81 0.53 11.81 9.843 0.20 13.78 0.69 15.75 13.780 0.20 17.72 0.69

0.79 0.79 0.87

5.71 27.74 7.28 10.87 16.87 2.375 2.65 6.06 28.88 7.99 12.01 6.54 29.70 8.98 12.83 7.64 13.39 4.72 33.29 10.47 16.18 15.67 17.68 17.11 8.86 9.21 36.24 12.60 19.13

10.43 9.055 0.16 11.81 0.53 11.81 9.843 0.20 13.78 0.69 15.75 13.780 0.20 17.72 0.69

10.20 12.05 12.05 0.79 5.71 0.79 6.06 0.87 6.54 13.39 4.72 7.64 9.21 10.20

7.28 7.99

0.63 0.79

- 180 M/L - 200 L - 225 S

- 180 M/L

AH1

7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53

- 132 S/M - 160 M/L

SK 973 F - 90 S/L - 100 L - 112 M - 132 S/M - 160 M/L

AD1

8.46 10.43

- 132 S/M - 160 M/L SK 972 F - 90 S/L - 100 L - 112 M

2.125 2.35

3.94

1/2 * 1/2 * 2-5/8 4.72

40.81 14.09 23.70 17.11 44.20 15.67 27.09 44.20 15.67 27.09 5/8 * 5/8 * 3-1/4 28.25 7.28 10.87 17.38 2.375 2.65 4.72 29.39 7.99 12.01 30.21 8.98 12.83 15.67 17.68 8.86 33.80 10.47 16.18 36.75 12.60 19.13 41.32 14.09 23.70

17.62 17.62

5/8 * 5/8 * 3-1/4

See page 78 for metric shafts Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL SPEED REDUCER

www.nord.com

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

SK 172

W + NEMA

Reduction ratio

Output speed

T2 max

max input power, Type W at fB 続 1

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

12 - pol.

i total

n2 [RPM]

[LB-IN]

[HP] *

79.56 58.96 48.32 45.40 37.21 30.58 29.10 27.61 23.91 21.59 17.87 17.17 14.84 12.98 12.16 11.41 10.07 9.35 8.25 7.68 6.94 6.34 5.74 5.21 4.71 4.07 3.90 3.37 3.03 2.62 2.23 1.93

20.00 28.00 34.00 36.00 44.00 53.00 56.00 60.00 70.00 77.00 92.00 96.00 113.00 128.00 137.00 146.00 166.00 178.00 202.00 216.00 240.00 262.00 289.00 319.00 353.00 408.00 426.00 493.00 548.00 635.00 745.00 862.00

620 752 752 752 779 761 779 752 797 770 752 752 752 752 752 717 681 664 637 549 540 513 504 496 487 469 443 425 416 416 416 363

0.20 0.33 0.41 0.43 0.54 0.64 0.69 0.72 0.88 0.94 1.10 1.15 1.35 1.53 1.63 1.66 1.79 1.87 2.00 1.88 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00

0.13 0.22 0.27 0.28 0.36 0.42 0.46 0.47 0.58 0.62 0.72 0.76 0.89 1.01 1.08 1.10 1.18 1.24 1.32 1.24 1.32 1.32 1.32 1.32 1.32 1.32 1.32 1.32 1.32 1.32 1.32 1.32

0.10 0.17 0.20 0.21 0.27 0.32 0.35 0.36 0.44 0.47 0.55 0.57 0.67 0.76 0.82 0.83 0.90 0.94 1.00 0.94 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00

0.06 0.11 0.13 0.14 0.18 0.21 0.23 0.24 0.29 0.31 0.36 0.38 0.44 0.50 0.54 0.55 0.59 0.62 0.66 0.62 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66

Available NEMA adapters *

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140

Example 143 TC and 145 TC motors bolt up to 140 adapter

* max. Input power is limited by the standard NEMA frame p端ower assignments. For combination with servomotors or other high torque motors please contact NORD.

For permissible Overhung- and Thrust loads on the output shaft see corresponding tables in the Gear Motor section. For permissible loads applied on the input shaft of Gearboxes (Type W) please see page 8. See page 6 for additional selection criteria. www.nord.com

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

Reduction ratio

itotal

SK 273 W + NEMA

SK 272

W + NEMA

Output speed

T 2 max

max input power, Type W at fB 続 1

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

n2 [RPM]

[LB-IN]

[HP] *

Available NEMA adapters *

12 - pol. [HP] *

330.90 245.21 188.81 165.97 127.79 107.65 82.89 71.41 61.73 53.98 47.44 41.78 36.54 32.11 28.34 27.10 23.70 20.83

4.80 6.50 8.50 9.60 12.00 14.00 20.00 23.00 26.00 30.00 35.00 40.00 46.00 52.00 59.00 61.00 71.00 80.00

1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239

0.09 0.13 0.17 0.19 0.24 0.28 0.39 0.45 0.51 0.59 0.69 0.79 0.90 1.02 1.16 1.20 1.40 1.57

0.06 0.08 0.11 0.12 0.16 0.18 0.26 0.30 0.34 0.39 0.45 0.52 0.60 0.67 0.77 0.79 0.92 1.04

0.05 0.06 0.08 0.09 0.12 0.14 0.20 0.23 0.26 0.29 0.34 0.39 0.45 0.51 0.58 0.60 0.70 0.79

0.03 0.04 0.06 0.06 0.08 0.09 0.13 0.15 0.17 0.19 0.23 0.26 0.30 0.34 0.38 0.40 0.46 0.52

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56

140 140 140 140 140 140 140 140 140 140 140 140 140 140

64.75 57.38 51.23 45.40 39.78 35.26 31.17 28.59 25.28 20.96 20.06 18.59 17.17 15.10 13.41 11.88 11.17 9.90 8.65 7.64 6.75 6.34 5.62 4.96 4.57 4.05 3.52 3.19 2.77 2.17 1.88

25.00 29.00 32.00 37.00 42.00 47.00 53.00 59.00 67.00 80.00 84.00 91.00 98.00 112.00 127.00 143.00 152.00 172.00 196.00 222.00 251.00 266.00 301.00 341.00 371.00 418.00 481.00 530.00 611.00 780.00 900.00

1151 1151 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1239 1221 1177 1151 1151 1106 885 832

0.46 0.53 0.63 0.73 0.83 0.92 1.04 1.16 1.32 1.57 1.65 1.79 1.93 2.20 2.50 2.81 2.99 3.38 3.85 4.36 4.93 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00

0.30 0.35 0.42 0.48 0.54 0.61 0.69 0.77 0.87 1.04 1.09 1.18 1.27 1.45 1.65 1.85 1.97 2.23 2.54 2.88 3.26 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30

0.23 0.26 0.31 0.36 0.41 0.46 0.52 0.58 0.66 0.79 0.83 0.89 0.96 1.10 1.25 1.41 1.49 1.69 1.93 2.18 2.47 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50

0.15 0.17 0.21 0.24 0.27 0.30 0.34 0.38 0.43 0.52 0.54 0.59 0.64 0.73 0.82 0.93 0.99 1.12 1.27 1.44 1.63 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

Example 143 TC and 145 TC motors bolt up to 140 adapter

* max. Input power is limited by the standard NEMA frame p端ower assignments. For combination with servomotors or other high torque motors please contact NORD.

www.nord.com

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

SK 373 W + NEMA

SK 372

W + NEMA

Reduction ratio

Output speed

T2 max

max input power, Type W at fB 続 1

Available NEMA adapters *

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

12 - pol.

i total

n2 [RPM]

[LB-IN]

[HP] *

238.68 188.86 161.01 127.40 98.94 85.47 73.94 66.38 63.29 55.65 49.42 42.69 37.54 33.34 27.78 24.26 22.37 16.28

6.70 8.40 10.00 13.00 17.00 19.00 23.00 25.00 26.00 30.00 34.00 38.00 44.00 50.00 60.00 68.00 74.00 104.00

1947 1947 1947 1947 1947 1947 1947 1947 1947 1947 1947 1947 1947 1947 1947 1947 1859 1770

0.21 0.26 0.31 0.40 0.52 0.59 0.71 0.77 0.80 0.93 1.05 1.17 1.36 1.54 1.85 2.10 2.18 2.92

0.14 0.17 0.20 0.26 0.35 0.39 0.47 0.51 0.53 0.61 0.69 0.77 0.90 1.02 1.22 1.39 1.44 1.93

0.10 0.13 0.15 0.20 0.26 0.29 0.36 0.39 0.40 0.46 0.52 0.59 0.68 0.77 0.93 1.05 1.09 1.46

0.07 0.09 0.10 0.13 0.17 0.19 0.23 0.25 0.26 0.31 0.35 0.39 0.45 0.51 0.61 0.69 0.72 0.96

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140

180 180 180 180 180 180

51.23 45.40 39.78 35.26 31.17 28.59 25.28 20.96 20.06 18.59 17.17 15.10 13.41 11.88 11.17 9.90 8.65 7.64 6.75 6.34 5.62 4.96 4.57 4.05 3.52 3.19 2.77 2.17 1.88

32.00 37.00 42.00 47.00 53.00 59.00 67.00 80.00 84.00 91.00 98.00 112.00 127.00 143.00 152.00 172.00 196.00 222.00 251.00 266.00 301.00 341.00 371.00 418.00 481.00 530.00 611.00 780.00 900.00

1549 1372 1770 1770 1770 1770 1770 1770 1770 1770 1770 1770 1682 1637 1505 1505 1505 1416 1283 1257 1266 1239 1221 1177 1151 1151 1106 885 832

0.79 0.80 1.18 1.32 1.49 1.66 1.88 2.25 2.36 2.55 2.75 3.14 3.39 3.71 3.63 4.10 4.68 4.99 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00

0.52 0.53 0.78 0.87 0.98 1.09 1.24 1.48 1.56 1.69 1.82 2.08 2.24 2.45 2.39 2.71 3.09 3.29 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30

0.39 0.40 0.59 0.66 0.74 0.83 0.94 1.12 1.18 1.28 1.38 1.57 1.69 1.86 1.81 2.05 2.34 2.49 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50

0.26 0.27 0.39 0.44 0.49 0.55 0.62 0.74 0.78 0.84 0.91 1.04 1.12 1.23 1.20 1.35 1.54 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

Example 143 TC and 145 TC motors bolt up to 140 adapter

* max. Input power is limited by the standard NEMA frame p端ower assignments. For combination with servomotors or other high torque motors please contact NORD.

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

SK 473

W + NEMA

SK 472

W + NEMA

Reduction ratio

Output speed

T 2 max

max input power, Type W at fB 続 1

Available NEMA adapters *

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

itotal

n2 [RPM]

[LB-IN]

[HP] *

12 - pol.

309.58 244.95 218.59 192.51 172.96 152.33 134.32 118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42 50.97 45.26 41.03 37.72 32.94 29.01 25.60 23.10 20.90 18.86 16.37

5.30 6.70 7.40 8.50 9.50 11.00 12.00 14.00 16.00 17.00 20.00 23.00 26.00 29.00 31.00 32.00 37.00 41.00 46.00 52.00 59.00 66.00 73.00 83.00 92.00 106.00

2832 2832 2832 2832 2832 2832 2655 2655 2655 2655 2655 2655 2655 2655 2655 2655 2655 2655 2655 2478 2390 2213 2124 2036 1947 1859

0.24 0.30 0.33 0.38 0.43 0.49 0.51 0.59 0.67 0.72 0.84 0.97 1.09 1.22 1.31 1.35 1.56 1.73 1.94 2.04 2.24 2.32 2.46 2.68 2.84 3.12

0.16 0.20 0.22 0.25 0.28 0.33 0.33 0.39 0.44 0.47 0.56 0.64 0.72 0.81 0.86 0.89 1.03 1.14 1.28 1.35 1.48 1.53 1.62 1.77 1.88 2.06

0.12 0.15 0.17 0.19 0.21 0.25 0.25 0.29 0.34 0.36 0.42 0.48 0.55 0.61 0.65 0.67 0.78 0.86 0.97 1.02 1.12 1.16 1.23 1.34 1.42 1.56

0.08 0.10 0.11 0.13 0.14 0.16 0.17 0.19 0.22 0.24 0.28 0.32 0.36 0.40 0.43 0.44 0.51 0.57 0.64 0.67 0.74 0.76 0.81 0.88 0.94 1.03

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140

180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210

65.56 51.70 46.75 42.21 38.17 33.11 28.83 26.70 23.16 20.17 18.44 17.98 16.63 15.59 15.04 14.02 12.68 10.45 9.22 8.34 7.23 6.30 5.61 4.82 4.23 3.63 3.17 2.73

25.00 32.00 35.00 40.00 43.00 50.00 58.00 64.00 73.00 86.00 92.00 96.00 102.00 112.00 113.00 124.00 137.00 166.00 188.00 208.00 241.00 276.00 310.00 361.00 412.00 479.00 548.00 637.00

2655 2655 2832 2655 2832 2832 2655 2832 2832 2832 2655 2611 2611 2611 2567 2478 2390 2213 2124 2080 2036 2036 1947 1947 1903 1814 1770 1682

1.05 1.35 1.57 1.68 1.93 2.25 2.44 2.87 3.28 3.86 3.87 3.98 4.22 4.64 4.60 4.87 5.19 5.83 6.33 6.86 7.78 8.91 9.57 10.00 10.00 10.00 10.00 10.00

0.69 0.89 1.04 1.11 1.27 1.48 1.61 1.90 2.16 2.55 2.56 2.62 2.79 3.06 3.04 3.22 3.43 3.84 4.18 4.53 5.14 5.88 6.32 6.60 6.60 6.60 6.60 6.60

0.53 0.67 0.79 0.84 0.97 1.12 1.22 1.44 1.64 1.93 1.94 1.99 2.11 2.32 2.30 2.44 2.60 2.91 3.17 3.43 3.89 4.46 4.79 5.00 5.00 5.00 5.00 5.00

0.35 0.44 0.52 0.56 0.64 0.74 0.81 0.95 1.08 1.27 1.28 1.31 1.39 1.53 1.52 1.61 1.71 1.92 2.09 2.26 2.57 2.94 3.16 3.30 3.30 3.30 3.30 3.30

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 -

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210

[HP] *

Example 143 TC and 145 TC motors bolt up to 140 adapter * max. Input power is limited by the standard NEMA frame p端ower assignments. For combination with servomotors or other high torque motors please contact NORD. For permissible Overhung- and Thrust loads on the output shaft see corresponding tables in the Gear Motor section. For permissible loads applied on the input shaft of Gearboxes (Type W) please see page 8. See page 6 for additional selection criteria.

www.nord.com

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

SK 573

W + NEMA

SK 572

W + NEMA

Reduction ratio

Output speed

T2 max

max input power, Type W at fB 続 1

Available NEMA adapters *

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

12 - pol.

i total

n2 [RPM]

[LB-IN]

[HP] *

309.58 244.95 218.59 192.51 172.96 152.33 134.32 118.30 106.70 95.90 82.08 72.18 64.10 57.96 53.42 50.97 45.26 41.03 37.72 32.94 29.01 25.60 23.10 20.90 18.86 16.37

5.30 6.70 7.40 8.50 9.50 11.00 12.00 14.00 16.00 17.00 20.00 23.00 26.00 29.00 31.00 32.00 37.00 41.00 46.00 52.00 59.00 66.00 73.00 83.00 92.00 106.00

3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983 3983

0.33 0.42 0.47 0.54 0.60 0.69 0.76 0.88 1.01 1.07 1.26 1.45 1.64 1.83 1.96 2.02 2.34 2.59 2.91 3.28 3.73 4.17 4.61 5.24 5.81 6.70

0.22 0.28 0.31 0.35 0.40 0.46 0.50 0.58 0.67 0.71 0.83 0.96 1.08 1.21 1.29 1.33 1.54 1.71 1.92 2.17 2.46 2.75 3.04 3.46 3.84 4.42

0.17 0.21 0.23 0.27 0.30 0.35 0.38 0.44 0.51 0.54 0.63 0.73 0.82 0.92 0.98 1.01 1.17 1.29 1.45 1.64 1.86 2.08 2.31 2.62 2.91 3.35

0.11 0.14 0.15 0.18 0.20 0.23 0.25 0.29 0.33 0.35 0.42 0.48 0.54 0.60 0.65 0.67 0.77 0.85 0.96 1.08 1.23 1.38 1.52 1.73 1.92 2.21

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140

180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210

51.70 46.75 42.21 38.17 33.11 28.83 26.70 23.16 20.17 17.98 18.44 16.63 15.59 15.04 14.02 12.68 10.45 9.22 8.34 7.23 6.30 5.61 4.82 4.23 3.63 3.17 2.73

32.00 35.00 40.00 43.00 50.00 58.00 64.00 73.00 86.00 96.00 92.00 102.00 112.00 113.00 124.00 137.00 166.00 188.00 208.00 241.00 276.00 310.00 361.00 412.00 479.00 548.00 637.00

3275 3275 3275 3275 3540 3275 3983 3983 3983 3983 3983 3983 3983 3850 3806 3806 3452 3363 3319 3186 3009 3009 2788 2744 2744 2213 2168

1.66 1.82 2.08 2.23 2.81 3.01 4.04 4.61 5.43 6.06 5.81 6.44 7.07 6.90 7.48 8.27 9.09 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00

1.10 1.20 1.37 1.47 1.85 1.99 2.67 3.04 3.59 4.00 3.84 4.25 4.67 4.55 4.94 5.46 6.00 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60

0.83 0.91 1.04 1.12 1.40 1.51 2.02 2.31 2.72 3.03 2.91 3.22 3.54 3.45 3.74 4.13 4.54 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00

0.55 0.60 0.69 0.74 0.93 0.99 1.33 1.52 1.79 2.00 1.92 2.13 2.33 2.28 2.47 2.73 3.00 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 -

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

SK 673

W + NEMA

SK 672

W + NEMA

Reduction ratio

Output speed

T 2 max

max input power, Type W at fB 続 1

Available NEMA adapters *

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

itotal

n2 [RPM]

[LB-IN]

[HP] *

12 - pol.

340.54 267.99 211.34 185.29 146.13 119.31 103.46 84.47 75.38 67.98 57.30 52.12 47.00 39.62 33.55 29.53 28.05 26.06 23.20 20.90 18.45 16.42

4.80 6.10 7.80 8.90 11.00 14.00 16.00 19.00 22.00 24.00 29.00 32.00 36.00 43.00 50.00 59.00 62.00 66.00 74.00 83.00 94.00 106.00

5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5576 5399 5310

0.42 0.54 0.69 0.79 0.97 1.24 1.41 1.68 1.95 2.12 2.56 2.83 3.18 3.80 4.42 5.22 5.48 5.84 6.54 7.34 8.05 8.93

0.28 0.36 0.46 0.52 0.64 0.82 0.93 1.11 1.28 1.40 1.69 1.87 2.10 2.51 2.92 3.44 3.62 3.85 4.32 4.84 5.31 5.89

0.21 0.27 0.34 0.39 0.49 0.62 0.71 0.84 0.97 1.06 1.28 1.41 1.59 1.90 2.21 2.61 2.74 2.92 3.27 3.67 4.02 4.46

0.14 0.18 0.23 0.26 0.32 0.41 0.47 0.55 0.64 0.70 0.85 0.93 1.05 1.25 1.46 1.72 1.81 1.93 2.16 2.42 2.66 2.95

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 -

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210

64.18 56.90 52.03 46.13 40.13 37.02 32.82 28.55 25.32 21.51 19.45 18.86 17.42 15.44 13.87 12.09 10.52 9.33 8.31 7.93 7.37 6.26 5.49 4.80 4.20 3.93 3.45 2.91

25.00 29.00 32.00 36.00 42.00 46.00 52.00 59.00 68.00 80.00 89.00 92.00 100.00 113.00 125.00 144.00 166.00 186.00 209.00 220.00 236.00 278.00 317.00 362.00 414.00 443.00 504.00 598.00

3983 3717 4115 4602 4160 5045 4779 4868 5045 4956 5310 3761 5222 4956 4868 4646 4779 4691 4602 4779 4425 4514 4337 4160 3983 3983 3806 3629

1.58 1.71 2.09 2.63 2.77 3.68 3.94 4.55 5.44 6.29 7.50 5.49 8.28 8.88 9.65 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00

1.04 1.13 1.38 1.73 1.83 2.43 2.60 3.01 3.59 4.15 4.95 3.62 5.47 5.86 6.37 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60

0.79 0.85 1.04 1.31 1.39 1.84 1.97 2.28 2.72 3.14 3.75 2.74 4.14 4.44 4.83 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00

0.52 0.56 0.69 0.87 0.91 1.21 1.30 1.50 1.80 2.08 2.47 1.81 2.73 2.93 3.18 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30 3.30

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 -

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210

[HP] *

Example 143 TC and 145 TC motors bolt up to 140 adapter

* max. Input power is limited by the standard NEMA frame p端ower assignments. For combination with servomotors or other high torque motors please contact NORD.

www.nord.com

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

SK 773

W + NEMA

SK 772

W + NEMA

Reduction ratio

Output speed

T2 max

max input power, Type W at fB 続 1

Available NEMA adapters *

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

12 - pol.

i total

n2 [RPM]

[LB-IN]

[HP] *

343.08 293.34 269.99 230.85 212.92 182.05 173.85 148.64 140.89 115.04 98.15 80.14 75.95 68.49 64.94 57.73 49.36 42.60 36.79 32.97 28.47 25.13 22.37 19.61 17.50 15.58 13.66

4.80 5.50 6.10 7.20 7.80 9.10 9.50 11.00 12.00 14.00 17.00 20.00 23.00 25.00 26.00 30.00 35.00 41.00 47.00 53.00 61.00 70.00 78.00 89.00 100.00 112.00 127.00

7390 6328 7655 7655 7655 7655 7655 7655 7655 7655 5974 7655 7655 7655 7655 7655 7655 7567 7257 7257 7257 7257 7257 6992 6992 6726 6549

0.56 0.55 0.74 0.87 0.95 1.10 1.15 1.34 1.46 1.70 1.61 2.43 2.79 3.04 3.16 3.64 4.25 4.92 5.41 6.10 7.02 8.06 8.98 9.87 11.09 11.95 13.19

0.37 0.36 0.49 0.58 0.63 0.73 0.76 0.88 0.96 1.12 1.06 1.60 1.84 2.00 2.08 2.40 2.80 3.25 3.57 4.03 4.63 5.32 5.93 6.51 7.32 7.89 8.71

0.28 0.28 0.37 0.44 0.47 0.55 0.58 0.67 0.73 0.85 0.81 1.21 1.40 1.52 1.58 1.82 2.12 2.46 2.70 3.05 3.51 4.03 4.49 4.93 5.54 5.97 6.60

0.19 0.18 0.24 0.29 0.31 0.36 0.38 0.44 0.48 0.56 0.53 0.80 0.92 1.00 1.04 1.20 1.40 1.62 1.79 2.01 2.32 2.66 2.96 3.26 3.66 3.94 4.35

56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 -

140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210

62.32 59.53 51.09 48.81 43.45 38.29 35.64 34.05 30.31 26.71 24.72 23.62 21.02 18.53 17.36 15.89 15.66 13.54 12.10 10.23 9.11 8.10 7.14 6.83 6.02 5.16 4.37 3.81 3.22 2.81 2.38

26.00 28.00 32.00 34.00 38.00 43.00 49.00 50.00 58.00 65.00 70.00 73.00 83.00 94.00 100.00 109.00 110.00 128.00 144.00 170.00 192.00 216.00 245.00 256.00 290.00 338.00 400.00 458.00 542.00 622.00 733.00

4071 3806 5045 4779 4292 4292 7080 6726 6062 5354 7257 7257 7257 6903 6903 6195 6549 6372 6107 5841 5576 5576 5399 5266 5089 5133 4912 4691 4292 3540 3186

1.68 1.69 2.56 2.58 2.59 2.93 5.50 5.33 5.58 5.52 8.06 8.40 9.55 10.29 10.95 10.71 11.43 12.94 13.95 15.75 16.98 19.10 20.00 20.00 20.00 20.00 20.00 20.00 20.00 20.00 20.00

1.11 1.12 1.69 1.70 1.71 1.93 3.63 3.52 3.68 3.64 5.32 5.55 6.31 6.79 7.23 7.07 7.54 8.54 9.20 10.39 11.21 12.61 13.20 13.20 13.20 13.20 13.20 13.20 13.20 13.20 13.20

0.84 0.84 1.28 1.29 1.29 1.46 2.75 2.67 2.79 2.76 4.03 4.20 4.78 5.15 5.47 5.35 5.71 6.47 6.97 7.87 8.49 9.55 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00

0.55 0.56 0.84 0.85 0.85 0.97 1.82 1.76 1.84 1.82 2.66 2.77 3.15 3.40 3.61 3.53 3.77 4.27 4.60 5.20 5.60 6.30 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60 6.60

56 56 56 56 56 56 56 56 56 56 56 56 56 56 -

140 140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210

250 250 250 250 250 250 250 250 250 250 250 250

Example: 143 TC and 145 TC motors bolt up to 140 adapter * max. Input power is limited by the standard NEMA frame p端ower assignments. For combination with servomotors or other high torque motors please contact NORD. For permissible Overhung- and Thrust loads on the output shaft see corresponding tables in the Gear Motor section. For permissible loads applied on the input shaft of Gearboxes (Type W) please see page 8. See page 6 for additional selection criteria. www.nord.com

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

SK 873

W + NEMA

SK 872

W + NEMA

Reduction ratio

Output speed

T 2 max

max input power, Type W at fB 続 1

Available NEMA adapters *

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

itotal

n2 [RPM]

[LB-IN]

[HP] *

12 - pol.

208.67 168.45 145.57 125.39 117.51 97.74 88.16 81.51 76.27 70.89 63.95 55.32 49.43 43.75 39.91 35.32 31.42 26.49 23.38 19.72 16.69

7.60 9.80 12.00 13.00 14.00 17.00 19.00 22.00 23.00 24.00 28.00 31.00 35.00 40.00 43.00 49.00 55.00 66.00 74.00 89.00 104.00

14868 14868 14868 12346 14868 14868 14868 14868 14868 14868 14868 14868 14868 14868 14868 14868 14868 14868 14868 14337 13275

1.79 2.31 2.83 2.55 3.30 4.01 4.48 5.19 5.42 5.66 6.60 7.31 8.25 9.43 10.14 11.55 12.97 15.56 17.45 20.24 21.90

1.18 1.53 1.87 1.68 2.18 2.65 2.96 3.42 3.58 3.74 4.36 4.82 5.45 6.23 6.69 7.63 8.56 10.27 11.52 13.36 14.45

0.90 1.16 1.41 1.27 1.65 2.00 2.24 2.59 2.71 2.83 3.30 3.66 4.13 4.72 5.07 5.78 6.48 7.78 8.73 10.12 10.95

0.59 0.76 0.93 0.84 1.09 1.32 1.48 1.71 1.79 1.87 2.18 2.41 2.72 3.11 3.35 3.81 4.28 5.14 5.76 6.68 7.23

140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210

250 250 250 250 250 250 250

280 280 280 280 280 280 280

52.79 45.81 40.78 36.68 31.83 28.34 24.90 22.16 18.77 18.32 16.78 15.25 14.56 13.23 11.61 10.34 9.64 8.58 7.58 6.75 6.34 5.57 4.92 4.23 3.78 3.33 2.94

32.00 38.00 42.00 47.00 54.00 61.00 70.00 79.00 92.00 95.00 104.00 114.00 120.00 132.00 151.00 169.00 181.00 204.00 232.00 259.00 276.00 314.00 356.00 414.00 463.00 526.00 596.00

12479 10886 9735 13275 13806 13718 13718 13541 12833 12302 12257 11859 12788 12080 11638 11726 11284 11240 10841 10664 11417 11063 10753 8408 8275 7611 6992

6.33 6.56 6.48 9.90 11.82 13.27 15.23 16.97 18.72 18.54 20.22 21.44 24.34 25.29 27.87 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00 30.00

4.18 4.33 4.28 6.53 7.80 8.76 10.05 11.20 12.36 12.23 13.34 14.15 16.06 16.69 18.40 19.80 19.80 19.80 19.80 19.80 19.80 19.80 19.80 19.80 19.80 19.80 19.80

3.17 3.28 3.24 4.95 5.91 6.64 7.61 8.48 9.36 9.27 10.11 10.72 12.17 12.65 13.94 15.00 15.00 15.00 15.00 15.00 15.00 15.00 15.00 15.00 15.00 15.00 15.00

2.09 2.17 2.14 3.27 3.90 4.38 5.03 5.60 6.18 6.12 6.67 7.08 8.03 8.35 9.20 9.90 9.90 9.90 9.90 9.90 9.90 9.90 9.90 9.90 9.90 9.90 9.90

140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210

250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250

280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280

[HP] *

Example 143 TC and 145 TC motors bolt up to 140 adapter

* max. Input power is limited by the standard NEMA frame p端ower assignments. For combination with servomotors or other high torque motors please contact NORD.

www.nord.com

HELICAL SPEED REDUCER TABLE OF CAPACITY AND RATIO WITH SOLID INPUT SHAFT, TYPE W, OR FOR ASSEMBLY WITH NEMA MOTORS

Size

Reduction ratio

i total

SK 973

W + NEMA

SK 972

W + NEMA

Output speed

T2 max

max input power, Type W at fB 続 1

4-pol./ 60 Hz

4 - pol.

6 - pol.

8 - pol.

12 - pol.

n2 [RPM]

[LB-IN]

[HP] *

Available NEMA adapters *

370.96 323.96 267.31 233.44 203.02 169.33 146.30 124.17 105.37 95.04 83.00 77.24 67.45 59.18 52.01 44.15 42.27 37.09 35.88 30.80 27.50 24.20 21.37 20.54 18.14

4.40 5.20 6.40 7.30 8.20 10.00 12.00 14.00 17.00 18.00 20.00 23.00 25.00 30.00 34.00 40.00 41.00 47.00 49.00 56.00 64.00 72.00 82.00 85.00 96.00

28320 28320 28320 28320 25665 28320 28320 28320 28320 28320 28320 28320 28320 28320 28320 28320 28320 28320 28320 28320 28320 27435 25665 24515 23010

1.98 2.34 2.87 3.28 3.34 4.49 5.39 6.29 7.64 8.09 8.98 10.33 11.23 13.48 15.27 17.97 18.42 21.11 22.01 25.15 28.75 31.33 33.38 33.05 35.04

1.30 1.54 1.90 2.16 2.20 2.96 3.56 4.15 5.04 5.34 5.93 6.82 7.41 8.89 10.08 11.86 12.15 13.93 14.53 16.60 18.97 20.68 22.03 21.81 23.12

0.99 1.17 1.44 1.64 1.67 2.25 2.70 3.14 3.82 4.04 4.49 5.17 5.61 6.74 7.64 8.98 9.21 10.56 11.00 12.58 14.37 15.66 16.69 16.52 17.52

0.65 0.77 0.95 1.08 1.10 1.48 1.78 2.08 2.52 2.67 2.96 3.41 3.71 4.45 5.04 5.93 6.08 6.97 7.26 8.30 9.49 10.34 11.01 10.91 11.56

140 140 140 140 140 140 140 140 140 140 140 140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210

250 250 250 250 250 250 250 250 250 250 250 250

280 280 280 280 280 280 280 280 280 280 280 280

67.05 56.59 46.91 39.59 36.41 30.73 26.57 22.62 22.53 20.37 17.77 15.46 13.96 12.41 11.79 10.47 9.05 8.64 7.68 6.75 5.89 5.42 4.82 4.23 3.70 3.02

26.00 31.00 37.00 43.00 48.00 56.00 66.00 77.00 78.00 85.00 98.00 113.00 126.00 142.00 149.00 168.00 194.00 204.00 229.00 262.00 300.00 325.00 366.00 418.00 476.00 584.00

20355 18585 20355 20355 20355 22656 22656 24780 21683 23099 22125 21240 20355 19382 18718 18497 17966 18497 18010 17567 16904 16638 16638 15488 14603 12611

8.39 9.14 11.95 13.88 15.50 20.12 23.72 30.26 26.82 31.14 34.39 38.07 40.68 43.65 44.23 49.28 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00

5.54 6.03 7.88 9.16 10.23 13.28 15.65 19.97 17.70 20.55 22.70 25.12 26.85 28.81 29.19 32.53 33.00 33.00 33.00 33.00 33.00 33.00 33.00 33.00 33.00 33.00

4.20 4.57 5.97 6.94 7.75 10.06 11.86 15.13 13.41 15.57 17.19 19.03 20.34 21.83 22.12 24.64 25.00 25.00 25.00 25.00 25.00 25.00 25.00 25.00 25.00 25.00

2.77 3.02 3.94 4.58 5.11 6.64 7.83 9.99 8.85 10.28 11.35 12.56 13.42 14.40 14.60 16.26 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50

140 140 -

180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 -

210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 210 -

250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 -

280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 -

HELICAL SPEED REDUCERS

TABLE OF WEIGHTS - TYPE W AND NEMA ADAPTERS

Weights approx. [LBS] Mounting position B3

Type

NEMA 56

NEMA 140

NEMA 180

NEMA 210

NEMA 250

NEMA 280

SK 172

SK 272 SK 273

27 28

35 36

56 57

SK 372 SK 373

27 28

35 36

56 57

SK 472 SK 473

51 52

56 57

85 86

SK 572 SK 573

51 52

56 57

85 86

SK 672 SK 673

70 70

75 75

104 104

SK 772 SK 773

84 88

86 89

115 119

138

SK 872 SK 873

166 169

164 167

190 192

212 215

234 237

SK 972 SK 973

290 288

266 265

292 291

314 313

336 335

Note: Weights will vary depending on the ratio and oil fill quantity.

Technical design may be subject to change.

www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION WITH SOLID INPUT SHAFT - TYPE W

Shaft dimensions Mounting dimensions (foot)

Outline dimensions

Type

SK 172 - W SK 272 - W SK 273 - W SK 372 - W SK 373 - W SK 472 - W SK 473 - W SK 572 - W SK 573 - W SK 672 - W SK 673 - W SK 772 - W SK 773 - W SK 872 - W SK 873 - W SK 972 - W SK 973 - W

A B 5.31 5.45 5.71 6.30 5.71 5.98 5.71 6.30 5.83 6.30 7.48 7.87 7.48 7.87 7.48 7.87 7.48 7.87 8.27 9.25 8.27 9.25 9.06 9.65 9.06 9.65 11.42 12.20 11.42 12.20 13.39 14.37 13.39 14.37

E F 4.33 4.33 4.33 5.12 4.33 5.12 4.33 5.12 4.33 5.12 5.31 6.50 5.31 6.50 5.31 6.50 5.31 6.50 5.91 7.68 5.91 7.68 6.69 8.07 6.69 8.07 8.46 10.24 8.46 10.24 9.84 12.20 9.84 12.20

G G2 0.47 0.39 0.79 0.59 0.71 0.59 0.79 0.59 0.79 0.59 0.98 0.79 0.98 0.79 0.98 0.79 0.98 0.79 1.18 0.98 1.18 0.98 1.18 0.98 1.18 0.98 1.77 1.57 1.77 1.57 2.17 1.97 2.17 1.97

H J 0.35 0.98 0.35 1.77 0.35 1.77 0.35 1.77 0.35 1.77 0.53 2.36 0.53 2.36 0.53 2.36 0.53 2.36 0.53 2.36 0.53 2.36 0.69 2.76 0.69 2.76 0.69 3.54 0.69 3.54 0.87 3.94 0.87 3.94

2.28

1.79

2.95

2.36

2.95

2.52

2.95

2.36

2.95

2.36

3.54

2.85

3.54

2.85

3.94

3.25

3.94

3.25

3.94

3.15

3.94

3.15

4.53

3.74

4.53

3.74

5.51

4.53

5.51

4.53

6.30

5.22

6.30

5.22

C CC 11.14 4.29 12.48 4.29 12.48 4.29 12.48 4.29 12.48 4.29 14.52 4.29 14.52 4.29 14.92 4.29 14.92 4.29 15.75 4.33 15.75 4.33 17.32 4.80 17.32 4.80 21.74 6.46 21.74 6.46 25.99 8.90 25.99 8.90

2.95

1.73

1.65

3.54

1.73

2.09

3.54

1.73

2.09

3.54

1.73

2.09

3.54

1.73

2.09

4.53

1.69

2.52

4.53

1.69

2.52

4.53

1.69

2.91

4.53

1.69

2.91

5.12

1.69

2.91

5.12

1.69

2.91

5.51

2.09

3.31

5.51

2.09

3.31

7.09

2.52

4.13

7.09

2.52

4.13

8.86

3.35

4.96

8.86

3.35

4.96

O O1 5.51 -6.30 -6.10 -6.30 -6.30 -8.27 -7.87 -8.27 -8.27 -9.13 10.43 9.13 10.43 9.92 11.30 9.92 11.30 12.76 14.41 12.76 14.41 15.67 17.68 15.67 17.68

QA 6.85 8.19 8.19 8.19 8.19 10.23 10.23 10.63 10.63 11.42 11.42 12.52 12.52 15.28 15.28 17.09 17.09

Output shaft UY V Key 0.750 0.83 1.57 3/16 * 3/16 * 1 1.000 1.11 1.97 1/4 * 1/4 * 1-1/4 1.000 1.11 1.97 1/4 * 1/4 * 1-1/4 1.000 1.11 1.97 1/4 * 1/4 * 1-1/4 1.000 1.11 1.97 1/4 * 1/4 * 1-1/4 1.250 1.36 2.36 1/4 * 1/4 * 1-5/8 1.250 1.36 2.36 1/4 * 1/4 * 1-5/8 1.375 1.52 2.75 5/16 * 5/16 * 2-1/8 1.375 1.52 2.75 5/16 * 5/16 * 2-1/8 1.375 1.52 2.75 5/16 * 5/16 * 2-1/8 1.375 1.52 2.75 5/16 * 5/16 * 2-1/8 1.625 1.79 3.15 3/8 * 3/8 * 2-1/4 1.625 1.79 3.15 3/8 * 3/8 * 2-1/4 2.125 2.35 3.94 1/2 * 1/2 * 2-5/8 2.125 2.35 3.94 1/2 * 1/2 * 2-5/8 2.375 2.65 4.72 5/8 * 5/8 * 3-1/4 2.375 265 4.72 5/8 * 5/8 * 3-1/4 U

Input shaft FV FZ Key 0.500 1.13 0.56 1/8 * 1/8 * 7/8 0.625 1.57 0.70 3/16 * 3/16 * 1 0.625 1.57 0.70 3/16 * 3/16 * 1 0.625 1.57 0.70 3/16 * 3/16 * 1 0.625 1.57 0.70 3/16 * 3/16 * 1 0.750 1.57 0.83 3/16 * 3/16 * 1-1/16 0.750 1.57 0.83 3/16 * 3/16 * 1-1/16 0.750 1.57 0.83 3/16 * 3/16 * 1-1/16 0.750 1.57 0.83 3/16 * 3/16 * 1-1/16 0.750 1.57 0.83 3/16 * 3/16 * 1-1/16 0.750 1.57 0.83 3/16 * 3/16 * 1-1/16 0.875 1.97 0.96 3/16 * 3/16 * 1-1/4 0.875 1.97 0.96 3/16 * 3/16 * 1-1/4 1.125 2.36 1.24 1/4 * 1/4 * 1-5/8 1.125 2.36 1.24 1/4 * 1/4 * 1-5/5 1.375 3.15 1.52 5/16 * 5/16* 2-1/2 1.375 3.15 1.52 5/16 * 5/16* 2-1/2 FU

See page 78 for metric shafts. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION WITH SOLID INPUT SHAFT - TYPE W

Mounting dimensions (bolt-on B5 flange)

Shaft dimensions

Outline dimensions

Type

Output shaft AJ

SK 172 F - W

SK 272 F - W

SK 273 F - W

SK 372 F - W

SK 373 F - W

SK 472 F - W

SK 473 F - W

3.94 4.53 5.12 6.5 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12 6.50 8.46 5.12 6.50 8.46 10.43 5.12 6.50 8.46 10.43

AK BB BD BF Standard shown in bold. Must specify BD dimension 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53

0.39 0.39 0.39 0.47 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39 0.47 0.63 0.39 0.47 0.63 0.79 0.39 0.47 0.63 0.79

AD1

AH1

Key 0.750 0.83 5.31

1.57 11.14

4.29

1.73

5.59

6.85

Input shaft V

Key 1.57 0.500 1.13

0.56

3.03 3/16 * 3/16 * 1 1/8 * 1/8 * 7/8 1.000 1.11 1.97 0.625 1.57 0.70

5.71

1.97 12.48

4.29

1.73

6.38

8.19

3.62

1/4 * 1/4 * 1-1/4 3/16 * 3/16 * 1 1.000 1.11 1.97 0.625 1.57 0.70 5.83

1.97 13.27

4.29

1.73

6.18

8.98

3.62

1/4 * 1/4 * 1-1/4 3/16 * 3/16 * 1 1.000 1.11 1.97 0.625 1.57 0.70 5.71

1.97 12.48

4.29

1.73

6.38

8.19

3.62

1/4 * 1/4 * 1-1/4 3/16 * 3/16 * 1 1.000 1.11 1.97 0.625 1.57 0.70 5.83

1.97 13.27

4.29

1.73

6.38

8.98 3.62 1/4 * 1/4 * 1-1/4 3/16 * 3/16 * 1 1.250 1.36 2.36 0.750 1.57 0.83

7.48

2.36 14.53

4.29

1.69

8.35 10.24 4.61 1/4 * 1/4 * 1-5/8 3/16 * 3/16 * 1-1/16 1.250 1.36 2.36 0.750 1.57 0.83

7.48

2.36 15.16

4.29

1.69

8.35 10.87 4.61 1/4 * 1/4 * 1-5/8

3/16 * 3/16 * 1-1/16

See page 78 for metric shafts. Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION WITH SOLID INPUT SHAFT - TYPE W

Flange BD = 17.72

Mounting dimensions (bolt-on B5 flange)

Output shaft

Type

SK 573 F - W

SK 672 F - W

SK 673 F - W

SK 772 F - W

SK 773 F - W

SK 872 F - W

SK 873 F - W

SK 972 F - W

SK 973 F - W

Input shaft

O2 AJ

SK 572 F - W

Shaft dimensions

Outline dimensions

5.12 6.50 8.46 10.43 5.12 6.50 8.46 10.43 6.50 8.46 10.43 6.50 8.46 10.43 6.50 8.46 10.43 6.50 8.46 10.43 8.46 10.43 11.81 8.46 10.43 11.81 10.43 11.81 15.75 10.43 11.81 15.75

AK BB BD BF Standard shown in bold. Must specify BD dimension. 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 9.843 0.20 13.78 0.69 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 9.843 0.20 13.78 0.69 9.055 0.16 11.81 0.53 9.843 0.20 13.78 0.69 13.780 0.20 17.72 0.69 9.055 0.16 11.81 0.53 9.843 0.20 13.78 0.69 13.780 0.20 17.72 0.69

AD1

AH1

O3 0.39 0.47 0.63 0.79 0.39 0.47 0.63 0.79 0.47 0.63 0.79 0.47 0.63 0.79 0.47 0.63 0.79 0.47 0.63 0.79 0.63 0.79 0.79 0.63 0.79 0.79 0.79 0.79 0.87 0.79 0.79 0.87

Key 1.375 1.52

8.35 7.48

2.76 14.92

4.29

1.69

Key 2.75 0.750 1.57

0.83

10.63 4.61 -5/16 * 5/16 * 2-1/8 3/16 * 3/16 * 1-1/16 1.250 1.36 2.36 0.75 1.57 0.83

8.35 7.48

2.76 15.55

4.29

1.69

11.26 4.61 -1/4 * 1/4 * 1-11/16 3/16 * 3/16 * 1-1/16 1.375 1.52 2.75 0.750 1.57 0.83

9.13 8.27

2.76 15.75

4.33

1.69

11.42 5.28 10.43 9.13

8.27

2.76 16.69

4.33

1.69

5/16 * 5/16 * 2-1/8 3/16 * 3/16 * 1-1/16 1.375 1.52 2.75 0.750 1.57 0.83 12.36 5.28

10.43 9.92 9.06

3.15 17.32

4.80

2.09

5/16 * 5/16 * 2-1/8 3/16 * 3/16 * 1-1/16 1.625 1.79 3.15 0.875 1.97 0.96 12.52 5.51

11.30 9.92 9.06

3.15 17.48

4.80

2.09

3/8 * 3/8 * 2-1/4 3/16 * 3/16 * 1-1/4 1.625 1.79 3.15 0.875 1.97 0.96 12.68 5.51

11.30 12.76 11.42 3.94 21.74

6.46

2.52

3/8 * 3/8 * 2-1/4 3/16 * 3/16 * 1-1/4 2.125 2.35 3.94 1.125 2.36 1.24 15.28 7.09

14.41 12.76 11.42 3.94 22.09

6.46

2.52

1/2 * 1/2 * 2-5/8 1/4 * 1/4 * 1-5/8 2.125 2.35 3.94 1.125 2.36 1.24 15.63 7.09

14.41 15.67 13.39 4.72 25.99

8.90

3.35

1/2 * 1/2 * 2-5/8 1/4 * 1/4 * 1-5/8 2.375 2.65 4.72 1.375 3.15 1.52 17.09 8.86

17.68 15.67 13.39 4.72 26.58

8.90

3.35

5/8 * 5/8 * 3-1/4 5/16 * 5/16 * 2-1/2 2.375 2.65 3.94 1.375 3.15 1.52 17.64 8.86

17.68

5/8 * 5/8 * 3-1/4

5/16 * 5/16 * 2-1/2

See page 78 for metric shafts. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION FOR ASSEMBLY WITH NEMA MOTORS

Mounting dimensions (foot)

Type

SK 172 SK 272

SK 273 SK 372

SK 373

SK 472

SK 473

- 56 C - 140 TC - 56 C - 140 TC - 180 TC - 56 C - 140 TC - 56 C - 140 TC - 180 TC - 56 C - 140 TC - 180 TC - 56 C - 140 TC - 180 TC - 210 TC - 56 C - 140 TC - 180 TC - 210 TC

NEMA 56 C 140 TC 180 TC 210 TC

5.31 5.45 5.71

4.33 4.33 4.33

0.47 0.39 0.79

0.35 0.98 0.35

6.30 5.71 5.98 5.71

5.12 4.33 5.12 4.33

0.59 0.71 0.59 0.79

1.77 0.35 1.77 0.35

6.30 5.83

5.12 4.33

0.59 0.79

1.77 0.35

6.30 7.48

5.12 5.31

0.59 0.98

1.77 0.53

7.87

6.50

0.79

2.36

7.48

5.31

0.98

0.53

2.28

1.79

1.65

5.51

6.85

2.36

3.54

2.09

6.30

2.95

2.52

3.54

2.09

6.10

2.95

2.36

4.29 4.29 4.29 4.29 5.51 4.29 4.29 4.29 4.29 5.51 4.29 4.29 5.51 4.29 4.29 7.48 7.48 4.29 4.29 7.48 7.48

2.95

11.14 11.14 12.46 12.46 14.27 12.48 12.48 12.46 12.46 14.27 12.46 12.46 14.27 13.96 13.96 18.01 18.01 13.96 13.96 18.01 18.01

3.54

2.09

6.30

2.95

3.54

3.54 7.87

AJ1 5.88 5.88 7.25 7.25

6.50

0.79

AK1 4.500 4.500 8.500 8.500

Shaft dimensions

Outline dimensions

2.36

BB1 0.20 0.20 0.23 0.23

2.36

2.85

BD1 6.61 6.61 9.17 9.17

8.17

3.54

4.53

2.09

2.52

8.76 8.19

Key 0.750 0.83 1.57 3/16 * 3/16 * 1-1/16 1.000 1.11 1.97

8.17

1/4 * 1/4 * 1-1/4 1.000 1.11 1.97 1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

8.76 8.17

1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

8.76 9.67

1/4 * 1/4 * 1-1/4 1.250 1.36 2.36

6.30

8.27 10.53 1/4 * 1/4 * 1-11/16 9.67

4.53

2.52

1.250

1.36

2.36

7.87 10.53 1/4 * 1/4 * 1-11/16

BF1 0.43 0.43 0.59 0.59

U1 0.625 0.875 1.125 1.375

UY1 0.71 0.96 1.24 1.52

Y1 0.188 0.188 0.250 0.312

See page 78 for metric shafts and for IEC motor adapters. Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION FOR ASSEMBLY WITH NEMA MOTORS

Mounting dimensions (bolt-on B5 flange)

Type

SK 172 F - 56 C - 140 TC

SK 272 F - 56 C - 140 TC - 180 TC

SK 273 F - 56 C - 140 TC

SK 372 F - 56 C - 140 TC - 180 TC

SK 373 F - 56 C - 140 TC - 180 TC

SK 472 F - 56 C - 140 TC - 180 TC - 210 TC SK 473 F - 56 C - 140 TC - 180 TC - 210 TC

NEMA 56 C 140 TC 180 TC 210 TC

3.94 4.53 5.12 6.50 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12 6.50 8.46 3.94 4.53 5.12 6.50 8.46 5.12 6.50 8.46 10.43 5.12 6.50 8.46 10.43

AJ1 5.88 5.88 7.25 7.25

AK BB BD BF Standard shown in bold. Must specify BD dimension. 3.150 0.12 4.72 0.26 0.35 5.51 0.12 3.740 0.35 6.30 0.14 4.331 0.43 7.87 0.14 5.118 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 0.35 6.30 0.14 4.331 0.43 7.87 0.14 5.118 0.53 9.84 0.16 7.087 0.26 4.72 0.12 3.150 0.35 5.51 0.12 3.740 0.35 6.30 0.14 4.331 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 0.35 6.30 0.14 4.331 0.43 7.87 0.14 5.118 0.53 9.84 0.16 7.087 3.150 0.12 4.72 0.26 3.740 0.12 5.51 0.35 0.35 6.30 0.14 4.331 0.43 7.87 0.14 5.118 0.53 9.84 0.16 7.087 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53

AK1 4.500 4.500 8.500 8.500

BB1 0.20 0.20 0.23 0.23

Shaft dimensions

Outline dimensions

AD1

AH1

0.39 0.39 0.39 0.47 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39 0.47 0.63 0.39 0.39 0.39 0.47 0.63 0.39 0.47 0.63 0.79 0.39 0.47 0.63 0.79

5.31

1.57

11.14 11.14

4.29 4.29

5.59

6.85

3.03

0.750

Key 0.83

1.57

12.46 12.46 14.27

4.29 4.29 5.51

13.27 13.27

4.29 4.29

12.46 12.46 14.27

4.29 4.29 5.51

13.25 13.25 15.06

4.29 4.29 5.51

13.96 13.96 18.01 18.01 14.59 14.590 18.64 18.64

4.29 4.29 7.48 7.48 4.29 4.29 7.48 7.48

5.71

5.83

5.71

5.83

7.48

BD1 6.61 6.61 9.17 9.17

1.97

2.36

BF1 0.43 0.43 0.59 0.59

3/16 * 3/16 * 1 1.000 1.11 1.97

8.17 6.38

3.62 8.76

6.18

8.98

3.62

1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

8.17 6.38

1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

3.62 8.76 1/4 * 1/4 * 1-1/4 1.000 1.11 1.97

8.96 6.38

3.62 9.55 1/4 * 1/4 * 1-1/4 1.250 1.36 2.36

9.67 8.35

4.61 10.53 1/4 * 1/4 * 1-5/8 1.250 1.36 2.36

10.30 8.35

4.61 11.16 1/4 * 1/4 * 1-5/8

U1 0.625 0.875 1.125 1.375

UY1 0.71 0.96 1.24 1.52

Y1 0.188 0.188 0.250 0.312

See page 78 for metric shafts and for IEC motor adapters. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION FOR ASSEMBLY WITH NEMA MOTORS

Mounting dimensions (foot)

Type

SK 572 - 56 C - 140 TC

7.48

5.31

0.98

0.53

- 180 TC - 210 TC

7.87

6.50

0.79

2.36

SK 573 - 56 C - 140 TC

7.48

5.31

0.98

0.53

- 180 TC - 210 TC

7.87

6.50

0.79

SK 672 - 56 C - 140 TC - 180 TC - 210 TC

8.27

5.91

1.18

Shaft dimensions

Outline dimensions

3.25

14.35 14.35

4.29 4.29

3.25

18.41 18.41 14.35 14.35

7.48 7.48 4.29 4.29

2.36

18.41 18.41

7.48 7.48

10.93

0.53

4.29 4.29

10.89

3.15

15.18 15.18

3.15

19.23 19.23 15.18 15.18

7.48 7.48 4.29 4.29

19.23 19.23

7.48 7.48

11.75

15.92 15.92

4.29 4.29

11.63

19.98 19.98 20.87

7.48 7.48 8.09

15.92 15.92 19.98 19.98

4.29 4.29 7.48 7.48

10.06

1.375

1.52

Key 3.94

3.94

3.94 9.25

7.68

0.98

2.36

SK 673 - 56 C - 140 TC

8.27

5.91

1.18

0.53

- 180 TC - 210 TC

9.25

SK 772 - 56 C - 140 TC - 180 TC - 210 TC

3.94 7.68

0.98

2.36

9.06

6.69

1.18

0.69

0.65

8.07

0.98

2.76

4.53

- 250 TC SK 773 - 56 C - 140 TC

9.06

6.69

1.18

0.69

- 180 TC - 210 TC

9.65

8.07

0.98

2.76

4.53

NEMA

AJ1

AK1

56 C 140 TC

5.88 5.88

4.500 4.500

180 TC

7.25

8.500

210 TC

7.25

8.500

250 TC

7.25

8.500

BB1 0.20

3.74

4.53

2.91

10.93 10.06

4.53

5.12

2.91

8.27

5/16 * 5/16 * 2-1/8 1.375

9.13

5.51

3.31

5/16 * 5/16 * 2-1/8 1.375

9.13

2.75

1.52

2.75

10.43

9.92

11.30

5/16 * 5/16 * 2-1/8 1.625

9.92

11.30

1.79

3.15

12.50

11.63 3.31

1.52

5/16 * 5/16 * 2-1/8 1.375

3/8 * 3/8 * 2-1/4

12.78

5.51

2.75

10.43

10.89 2.91

1.52

11.75

5.12

2.75

8.27

1.625

1.79

3.15

12.50 3/8 * 3/8 * 2-1/4

BD1

BF1

UY1

0.20

6.61 6.61

0.43 0.43

0.625 0.875

0.71 0.96

0.188 0.188

0.23

9.17

0.59

1.125

1.24

0.250

0.23

9.17

0.59

1.375

1.52

0.312

0.23

9.17

0.59

1.625

1.80

0.375

See page 78 for metric shafts and for IEC motor adapters. Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION FOR ASSEMBLY WITH NEMA MOTORS

Mounting dimensions (bolt-on B5 flange)

Outline dimensions

Shaft dimensions

Type AJ

- 180 TC - 210 TC

5.12 6.50 8.46 10.43

AK BB BD BF Standard shown in bold. Must specify BD dimension. 4.331 0.14 6.30 0.35 5.118 0.14 7.87 0.43 7.087 0.16 9.84 0.53 9.055 0.16 11.81 0.53

0.39 0.47 0.63 0.79

SK 573 F - 56 C - 140 TC

5.12 6.50

4.331 5.118

0.14 0.14

6.30 7.87

0.35 0.43

0.39 0.47

- 180 TC - 210 TC

8.46 10.43 6.50 8.46

7.087 9.055 5.118 7.087

0.16 0.16 0.14 0.16

9.84 11.81 7.87 9.84

0.53 0.53 0.43 0.53

0.63 0.79 0.47 0.63

- 180 TC - 210 TC

10.43

9.055

0.16

11.81

0.53

SK 673 F - 56 C - 140 TC - 180 TC - 210 TC

6.50 8.46

5.118 7.087

0.14 0.16

7.87 9.84

10.43

9.055

0.16

SK 772 F - 56 C - 140 TC

6.50 8.46

5.118 7.087

- 180 TC - 210 TC

10.43

SK 773 F - 56 C - 140 TC - 180 TC - 210 TC

SK 572 F - 56 C - 140 TC

SK 672 F - 56 C - 140 TC

AD1

14.35 14.35 18.41 18.41

4.29 4.29 7.48 7.48

2.76

14.98 14.98

4.29 4.29

2.76

19.04 19.04 15.17 15.17

7.48 7.48 4.29 4.29

0.79

19.23 19.23

7.48 7.48

11.75

0.43 0.53

0.47 0.63

16.12 16.12

4.29 4.29

11.83

11.81

0.53

0.79

0.14 0.16

7.87 9.84

0.43 0.53

0.47 0.63

20.18 20.18 15.92 15.92

7.48 7.48 4.29 4.29

9.055

0.16

11.81

0.53

0.79

19.98 19.98

7.48 7.48

6.50 8.46

5.118 7.087

0.14 0.16

7.87 9.84

0.43 0.53

0.47 0.63

10.43

9.055

0.16

11.81

0.53

0.79

7.48

8.27

9.06

AH1

2.76

3.15

- 250 TC

NEMA

AJ1

AK1

56 C 140 TC

5.88 5.88

4.500 4.500

180 TC

7.25

8.500

210 TC

7.25

8.500

250 TC

7.25

8.500

BB1 0.20

9.06

3.15

10.06 8.35

10.93

UY Key

1.375

1.52

2.75

4.61 5/16 * 5/16 * 2-1/8

10.69 8.35

1.375

1.52

2.75

4.61 11.56 5/16 * 5/16 * 2-1/8 1.375 1.52 2.75

10.88 9.13

9.13

10.43

5.28

10.43

5/16 * 5/16 * 2-1/8 1.375

1.52

2.75

5.28 12.70 5/16 * 5/16 * 2-1/8 1.625 1.79 3.15

11.63 9.92

11.30

12.50

20.87

8.09

12.78

16.49 16.49

4.29 4.29

12.26

20.61 20.61

7.48 7.48

9.92

11.30

5.51 3/8 * 3/8 * 2-1/4 1.625

1.79

3.15

5.51 13.13

3/8 * 3/8 * 2-1/4

BD1

BF1

UY1

0.20

6.61 6.61

0.43 0.43

0.625 0.875

0.71 0.96

0.188 0.188

0.23

9.17

0.59

1.125

1.24

0.250

0.23

9.17

0.59

1.375

1.52

0.312

0.23

9.17

0.59

1.625

1.80

0.375

See page 78 for metric shafts and for IEC motor adapters. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION FOR ASSEMBLY WITH NEMA MOTORS

Mounting dimensions (foot)

Type

Shaft dimensions

Outline dimensions

19.96

5.20

14.76

2.125

2.35

22.52 22.52

7.48 7.48

15.04

23.37 23.63

8.09 8.35

15.28

19.96

5.20

14.76

22.52 22.52

7.48 7.48

15.04

23.37 23.63 21.97

8.09 8.35 5.20

24.35 24.35 25.20 25.46

7.48 7.48 8.09 8.35

21.97 24.35 24.35

5.20 7.48 7.48

25.20 25.46

8.09 8.35

Key SK 872 - 140 TC - 180 TC - 210 TC

11.42

8.46

1.77

0.69

- 250 TC - 280 TC SK 873 - 140 TC

12.20

10.24

1.57

3.54

- 180 TC - 210 TC - 250 TC - 280 TC

11.42

8.46

1.77

0.69

12.20

10.24

1.57

3.54

SK 972 - 140 TC - 180 TC - 210 TC - 250 TC - 280 TC

5.51

13.39

9.84

2.17

0.87

14.37

12.20

1.97

3.94

6.30

4.53

5.22

SK 973 - 140 TC - 180 TC - 210 TC

13.39

9.84

2.17

0.87

- 250 TC - 280 TC

14.37

12.20

1.97

3.94

6.30

5.22

7.09

4.13

12.76

3.94

14.41 1/2 * 1/2 * 2-5/8 2.125

2.35

3.94

14.41 15.28 16.77

1/2 * 1/2 * 2-5/8 2.375

2.65

4.72

16.87 8.86

4.96

15.67

17.68 17.11 16.77 16.87

8.86

4.96

15.67

5/8 * 5/8 * 3-1/4 2.375

2.65

4.72

17.68 17.11

5/8 * 5/8 * 3-1/4

NEMA

AJ1

AK1

BB1

BD1

BF1

UY1

140 TC

5.88

4.500

0.20

6.61

0.43

0.875

0.96

0.188

180 TC

7.25

8.500

0.23

9.17

0.59

1.125

1.24

0.250

210 TC 250 TC

7.25 7.25

8.500 8.500

0.23 0.23

9.17 9.17

0.59 0.59

1.375 1.625

1.52 1.80

0.312 0.375

280 TC

9.00

10.500

0.23

11.26

0.59

1.875

2.10

0.500

See page 78 for metric shafts and for IEC motor adapters. Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL SPEED REDUCER

DOUBLE AND TRIPLE REDUCTION FOR ASSEMBLY WITH NEMA MOTORS

Flange BD = 17.72

Mounting dimensions (bolt-on B5 flange)

Outline dimensions

Shaft dimensions

Type AJ

SK 872 F - 140 TC

8.46

AK BB BD BF Standard shown in bold. Must specify BD dimension. 7.087 0.16 9.84 0.53

- 180 TC - 210 TC - 250 TC - 280 TC

10.43 11.81

9.055 0.16 11.81 9.843 0.20 13.78

SK 873 F - 140 TC - 180 TC - 210 TC

8.46

7.087 0.16

9.84

0.53

0.63

10.43 11.81

9.055 0.16 11.81 9.843 0.20 13.78

0.53 0.69

0.79 0.79

0.53 0.69

AD1

AH1

0.63

19.96

5.20

14.76

0.79 0.79

22.52 22.52

7.48 7.48

15.04

23.37 23.63 20.32

8.09 8.35 5.20

22.87 22.87

7.48 7.48

23.72 23.98

8.09 8.35

15.63

11.42

3.94

- 250 TC - 280 TC SK 972 F - 140 TC - 180 TC - 210 TC - 250 TC - 280 TC SK 973 F - 140 TC - 180 TC - 210 TC - 250 TC - 280 TC

10.43

12.76

14.41

Key 2.35

3.94

7.09

5.20

16.77

11.81 9.843 0.20 13.78 15.75 13.780 0.20 17.72

0.69 0.69

0.79 0.87

24.35 24.35

7.48 7.48

16.87

25.20 25.46

8.09 8.35

17.11

15.67

17.68

0.53

0.79

22.48

5.20

17.28

11.81 9.843 0.20 13.78 15.75 13.780 0.20 17.72

0.69 0.69

0.79 0.87

24.86 24.86

7.48 7.48

17.38

25.71 25.97

8.09 8.35

15.67

1/2 * 1/2 * 2-5/8 2.375

2.65

4.72

8.86

9.055 0.16 11.81

4.72

2.125

15.39 12.76

21.97

13.39

1/2 * 1/2 * 2-5/8 2.125 2.35 3.94

15.12

0.79

10.43

7.09

0.53

4.72

15.28

9.055 0.16 11.81

13.39

17.68

5/8 * 5/8 * 3-1/4 2.375

2.65

4.72

8.86 17.62 5/8 * 5/8 * 3-1/4

NEMA

AJ1

AK1

BB1

BD1

BF1

UY1

140 TC

5.88

4.500

0.20

6.61

0.43

0.875

0.96

0.188

180 TC

7.25

8.500

0.23

9.17

0.59

1.125

1.24

0.250

210 TC 250 TC

7.25 7.25

8.500 8.500

0.23 0.23

9.17 9.17

0.59 0.59

1.375 1.625

1.52 1.80

0.312 0.375

280 TC

9.00

10.500

0.23

11.26

0.59

1.875

2.10

0.500

See page 78 for metric shafts and for IEC motor adapters. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELICAL SPEED REDUCER - OPTIONS

FLANGE MOUNTED, B14 - Z

Mounting dimension (flange)

Type

Shaft dimensions

AJ3

AK3

BB3

BD3

BF3

Key

SK 172 F - ...

3.15

2.441

0.20

3.86

M 8 x 0.63

0.750

0.83

3/16 * 3/16 * 1

1.57

0.08

SK 272 F - ...

3.54

2.835

0.43

4.25

M 8 x 0.63

1.000

1.11

1/4 * 1/4 * 1-1/4

1.97

0.12

SK 273 F - ...

3.54

2.835

0.43

4.25

M 8 x 0.63

1.000

1.11

1/4 * 1/4 * 1-1/4

1.97

0.12

SK 372 F - ...

3.54

2.835

0.43

4.25

M 8 x 0.63

1.000

1.11

1/4 * 1/4 * 1-1/4

1.97

0.12

SK 373 F - ...

3.54

2.835

0.43

4.25

M 8 x 0.63

1.000

1.11

1/4 * 1/4 * 1-1/4

1.97

0.12

SK 472 F - ...

4.09

3.150

0.55

5.12

M 10 x 0.79

1.250

1.36

1/4 * 1/4 * 1-5/8

2.36

0.16

SK 473 F - ...

4.09

3.150

0.55

5.12

M 10 x 0.79

1.250

1.36

1/4 * 1/4 * 1-5/8

2.36

0.16

SK 572 F - ...

4.09

3.150

0.55

5.12

M 10 x 0.79

1.375

1.52

5/16 * 5/16 * 2-1/8

2.75

0.16

SK 573 F - ...

4.09

3.150

0.55

5.12

M 10 x 0.79

1.375

1.52

5/16 * 5/16 * 2-1/8

2.75

0.16

SK 672 F - ...

4.53

3.543

0.71

5.51

M 10 x 0.79

1.375

1.52

5/16 * 5/16 * 2-1/8

2.75

0.16

SK 673 F - ...

4.53

3.386

0.71

5.51

M 10 x 0.79

1.375

1.52

5/16 * 5/16 * 2-1/8

2.75

0.16

SK 772 F - ...

5.12

4.016

0.75

6.50

M 12 x 0.79

1.625

1.79

3/8 * 3/8 * 2-1/4

3.15

0.16

SK 773 F - ...

5.12

4.016

0.75

6.50

M 12 x 0.79

1.625

1.79

3/8 * 3/8 * 2-1/4

3.15

0.16

SK 872 F - ...

6.50

5.118

0.79

8.07

M 12 x 0.79

2.125

2.35

1/2 * 1/2 * 2-5/8

3.94

0.20

SK 873 F - ...

6.50

5.118

0.79

8.07

M 12 x 0.79

2.125

2.35

1/2 * 1/2 * 2-5/8

3.94

0.20

SK 972 F - ...

7.87

6.102

0.98

9.84

M 16 x 1.18

2.375

2.65

5/8 * 5/8 * 3-1/4

4.72

0.24

SK 973 F - ...

7.87

6.102

0.98

9.84

M 16 x 1.18

2.375

2.65

5/8 * 5/8 * 3-1/4

4.72

0.24

The table is valid for Helical Gear motors and Speed Reducers. Technical design may be subject to change. DXF files available upon request.

www.nord.com

HELICAL SPEED REDUCER - OPTIONS

FOOT/FLANGE MOUNTING

XZ - B3 / B14

XF - B3 / B5 Mounting dimensions B 14

Mounting dimensions B 5

Type AJ2

AK2

AK3

BB2

BB3

BD2

BF2

BJ3

SK 172 ...

3.15 2.441

2.28

0.32

4.13

M 8 x 0.51

1.79

28o

SK 272 ...

3.54 2.835

2.95

0.35

4.45

M 8 x 0.63

2.36

25o

SK 273 ... SK 372 ...

3.54 2.835 2,283 2.95 3.54 2.835 -2.95

0.35 0.35

0.24 --

4.13 4.45

M 8 x 0.47 M 8 x 0.63

2.52 2.36

25o 25o

SK 373 ... SK 472 …

3.54 2.835 2.283 2.95 4.33 3.150 -3.54

0.35 0.35

0.24 --

4.13 M 8 x 0.47 2.52 5.43 M10 x 0.79 2.85

25o 28o

SK 473 ... SK 572 …

4.33 3.150 4.33 3.150

---

3.54 3.94

0.35 0.35

---

5.43 M10 x 0.79 2.85 5.43 M10 x 0.79 3.25

28o 28o

SK 573 ... SK 672 ...

4.33 3.150 4.53 3.543

---

3.94 3.94

0.35 0.43

---

5.43 M10 x 0.79 3.25 6.30 M10 x 0.79 3.15

28o 28o

SK 673 ... SK 772 ...

4.53 3.386 5.12 4.016

---

3.94 4.53

0.43 0.47

---

6.30 M10 x 0.79 3.15 6.85 M12 x 0.95 3.74

28o 25o

SK 773 ... SK 872 ...

5.12 4.016 6.50 5.118

---

4.53 5.51

0.47 0.47

---

6.85 M12 x 0.79 3.74 8.27 M12 x 0.79 4.53

25o 25o

SK 873 ... SK 972 ...

6.50 5.118 7.87 6.102

---

5.51 6.30

0.47 0.59

---

8.27 M12 x 0.79 4.53 10.24 M16 x 0.98 5.22

25o 25o

SK 973 ...

7.87 6.102

6.30

0.59

10.24 M16 x 0.98 5.22

25o

AH2

0.79

0.98

1.18

1.38

AJ1

5.12

6.50

8.47

AK1

4.331

5.118

7.087

2.28

2.95

3.54

3.94

Shaft dimensions

BD1

BF1

BD4 6.30

GA1 Key 0.35 0.750 1.57

2,36 7.87

0,39 3/16 * 3/16 * 1 0.43 1.000 1.97 0.12

2.76 7.87

0.47 1/4 * 1/4 * 1-1/4 0.43 1.000 1.97 0.12

2.76 9.84

0.47 1/4 * 1/4 * 1-1/4 0.53 1.250 2.36 0.16

3.15 9.84

0.63 1/4 * 1/4 * 1-5/8 0.53 1.375 2.75 0.16

3.15 9.84

0.63 5/16 * 5/16 * 2-1/8 0.53 1.375 2.75 0.16

BB1 0.06

0.14

0.16

0.16 3.54 0.63 5/16 * 5/16 * 2-1/8 11.81 0.53 1.625 3.15 0.16

1.58 10.43

9.055

4.53

0.16 3.94 0.79 3/8 * 3/8 * 2-1/4 13.78 0.69 2.125 3.94 0.20

1.97 11.81

9.843

5.51

0.20 5.12 0.79 1/2 * 1/2 * 2-5/8 17.72 0.69 2.375 4.72 0.24

2.36 15.75 13.780 6.30

0.20 6.30

0.79

5/8 * 5/8 * 3-1/4

The table is valid for Helical Gearmotors and Speed Reducers. Technical design may be subject to change. DXF files available upon request. www.nord.com

HELCAL SPEED REDUCER - OPTIONS

METRIC SHAFT DIMENSIONS IEC MOTOR ADAPTERS

Metric Shaft Dimensions (mm) Size SK 172

U 20

UY 22:5

V 40

Key size 6 x 6 x 32

Threads M 6 x 16

SK 272 / 273 SK 372 / 373

25 25

28 28

50 50

8 x 7 x 40 8 x 7 x 40

M 10 x 22 M 10 x 22

SK 472 / 473 SK 572 / 573

30 35

33 38

60 70

8 x 7 x 50 10 x 8 x 56

M 10 x 22 M 12 x 28

SK 672 / 673 SK 772 / 773

35 40

38 43

70 80

10 x 8 x 56 12 x 8 x 70

M 12 x 28 M 16 x 36

SK 872 / 873 SK 972 / 973

50 60

53:5 64

100 120

14 x 9 x 80 18 x 11 x 110

M 16 x 36 M 20 x 42

IEC Motor Adapters (mm)

Size

AJ1

AK1

BB1

BD1

BF1

UY1

Key size

IEC 63 IEC 71

115 130

95 110

3.5 4

140 160

M8 M8

11 14

12.8 16.3

4 x 4 x 18 5 x 5 x 25

IEC 80 IEC 90

165 165

130 130

4 4

200 200

M 10 M 10

19 24

21.8 27.3

6 x 6 x 35 8 x 7 x 40

IEC 100 IEC 112

215 215

180 180

5 5

250 250

M 12 M 12

28 28

31.3 31.3

8 x 7 x 50 8 x 7 x 50

IEC 132 IEC 160

265 300

230 250

5 6

300 350

M 12 M 16

38 42

41.3 45.3

10 x 8 x 60 12 x 8 x 75

IEC 180 IEC 200

300 350

250 300

6 6

350 400

M 16 M 16

48 55

51.8 59.3

14 x 9 x 80 16 x 10 x 95

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HELCAL SPEED REDUCER - OPTIONS

LUBRICANT EXPANSION UNIT FOR MOUNTING POSITION V1 OR V5

Vent Gear Unit

SK 472 / SK 473 SK 572 / SK 573 SK 672 / SK 673 SK 772 / SK 773 SK 872 / SK 873 SK 972 / SK 973

Lubricant Expansion Unit

Size

100

180

The use of the lubricant expansion unit for vertical mounting positions V1 and V5 avoids oil-leakage from the ventilation plug under certain operating conditions. If the gearbox ratio is less then 20:1 and the continuous operating time is greater then 3 hours, this unit may be supplied of NORDâ&#x20AC;&#x2122;s discretion.

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NOTES

MOTOR

EXPLANATORY NOTES

MOTORS All motors are in accordance with existing standards and regulations, such as NEMA MG1 and EN 60034, part 1, 5, 6, 7, 8, 9.

RATED VOLTAGE-RANGE Motors to be operated on a supply according to NEMA MG1 with a tolerance of ± 10% can be supplied for one of the following Voltage-Ranges:

Supply Voltage acc. to NEMA MG1 230 V ± 10% 400 V ± 10% 460 V ± 10% 575 V ± 10% 690 V ± 10%

TWO-SPEED MOTORS Our two-speed motors are executed with single-winding for Dahlander connection (speed ratio 2:1) or with separate windings (speed ratios 3:1, 4:1, 6:1, 3:2). A combination of both winding types enables the production of three-speed motors.

TEMPERATURE RISE As specified in NEMA MG1, the motor ratings are based on continuous duty, maximum ambient temperature of 40°C an altitudes up to 3300 ft (1000 metres) above sea level. The power obtainable in the case of other conditions is tabulated below.

Ambient temperature [° C]

Power obtainable in % of rated value

40 45 50 55 60

100 96 92 87 82

altitude above sea level in meters feet

1000 1500 2000 2500 3000 3500 4000

Power obtainable in % of rated value

3300 5000 6600 8300 9900 11500 13000

100 97 94 90 86 83 80

The windings are insulation class F according to NEMA MG1. Insulation class F

Max. permissible temperature rise [K] 105

Max. permissible continuous temperature [°C] 155

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MOTOR

EXPLANATORY NOTES

MOTOR PROTECTION Current-controlled motor-protection must be set acc. to rated current shown on nameplate. Operation involving high switching frequency, short term duty or large temperature-differences should be covered by direct temperature-control.

Following options are available at surcharge:

a) Thermostat (TW) Upon reaching the limit temperature this device automatically cuts the control-circuit and only after a large drop in temperature this switch engages again. Contact-rating: 250 V AC, 1,6 A. b) Thermistor sensors (TF) The built-in thermistors can only be utilized with an external tripping-device. Upon reaching the limit temperature the thermistors change their resistance suddenly. In connection with a tripping device this property is employed to monitor the motor temperature. The relay built into the tripping-device has a make-and-break-contact which is utilized for control purposes. Advantage: Control-device is self-monitoring, narrow switching-tolerance approx. 1-3 K1; rapid restart of drive.

Note: Do not apply voltage to thermistors Isolation class NAT/°C

F warn

cut out

130

155

DEGREES OF PROTECTION The standard degree of protection of the motors is IP 55. The standard degree of protection of the brakemotors is IP 54. If required, degrees of protection IP 56, IP 65 and IP 66 are available with surcharge. Generally, application and ambient conditions determine the required degree of protection as well as other additional measures for outdoor duty and vertical mounting positions with motor on top (eg, V1 or V5 for helical inline units), we recommend an execution with double fan cowl. For further explanations, please refer to the brochure "IP - degrees of protection".

NEMA AND CSA The standard motors meet the American “NEMA Specifications” only in terms of electrical standards, not in terms of mechanical standards. Motors with dimensions conforming to NEMA are avialable at extra price. CSA motors are availble in designs 230 / 460 V - 60 Hz or 332 / 575 V - 60 Hz. VIK-motors are avialable (extra price) to conform to the technical requirements of the VIK (Combined Industrial Power Industry) dated June 1975.

MODES OF OPERATION All motors of the catalogue are suitable for continuous duty (S1), to EN 60034/1. For selection of motors for other duties we need following (details:

- relative cyclic duration factor - characteristic curve over speed range - external moment of inertia reduced to motor shaft - details on braking

CONNECTION The motors are suitable for direct starting. However, 3 times the rated torque and 8 times the rated current may be reached. By Star-Delta starting these maximum values may be reduced to 1/3 (e.g. regulations of power authorities), under the conditions that the current of the Delta-Winding corresponds with the grid.

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MOTOR

THREE-PHASE MOTORS - 4-poles / 230 V / 460 V / 575 V / 60 Hz

60 Hz Frame size

(230 V) (460 V)

[HP]

[kW] [RPM]

Ia / I n

(575 V)

[A]

Code Letter

Ta / T n

Tk / T n

cos j

[lb-in]

Jmot

[%]

[lb-ft2]

63 S/4 63 L/4

0.16 0.25

0.12 0.18

1700 1680

0.88 1.12

0.44 0.56

0.37 0.46

2.45 2.75

F E

5.93 9.38

2.1 2.1

2.2 2.2

0.66 0.71

52 57

0.00499 0.00665

71 S/4 71 L/4

0.33 0.50

0.25 0.37

1710 1720

1.56 1.90

0.78 0.95

0.6 0.80

3.10 3.55

G F

12.2 18.3

2.5 2.45

2.4 2.6

0.64 0.69

63 71

0.0150 0.0181

80 S/4 80 L/4

0.75 1.0

0.55 0.75

1710 1650

2.70 3.66

1.35 1.83

1.12 1.46

3.55 3.90

F G

27.6 38.2

2.2 2.2

2.2 2.3

0.71 0.74

72 70

0.0304 0.0392

90 S/4 90 L/4

1.5 2.0

1.1 1.5

1660 1660

4.84 6.34

2.42 3.17

1.94 2.54

4.45 4.65

G G

57.0 75.9

2.7 2.55

2.6 2.5

0.78 0.80

73 74

0.0670 0.0855

100 L/4 100 L/40

3.0 5.0

2.2 3.7

1705 1725

9.0 15.2

4.50 7.62

3.6 6.1

4.90 5.10

G G

111 183

2.3 2.7

2.6 3.1

0.81 0.75

72 82

0.107 0.162

132 S/4 132 M/4

7.5 10

5.5 7.5

1735 1735

19.8 25.8

9.90 12.9

7.92 10.3

5.45 6.45

G H

272 363

2.45 2.9

2.75 3.2

0.82 0.84

81 86

0.553 0.753

160 M/4 160 L/4

15 20

11 15

1770 1765

38.4 49

19.2 24.5

15.4 19.6

6.65 7.25

H H

522 713

2.45 2.9

3.0 3.3

0.82 0.86

88 89.4

0.95 1.23

180 MX/4 180 LX/4

25 30

18.5 22

1750 1755

60 71

30.0 35.5

24.0 28.4

8.60 9.80

K L

887 1052

2.95 3.4

3.4 3.7

0.87 0.87

89 89.4

1.35 1.35

200 L/4

1780

38.4

7.70

1414

2.9

3.6

0.85

5.70

225 S/4

1765

â&#x20AC;&#x201C;

46.4

7.60

1759

3.1

3.5

0.86

93.1

7.60

For higher efficiency motor see page 86. Performance specifications are subject to change.

ABBREVIATION LEGEND

= Rated power [HP]

= Rated speed [RPM]

= Efficiency of motor [%]

Standard efficiency. 1.15 Service factor Inverter duty, TEFC Synchronous speed 1800 rpm @ 60Hz, 4-pole Voltages: 230 / 460 & 330 / 575 - 60 Hz, Three-phase Continuous Duty, 40o C Ambient, up to 3300 ft Elevation Class B temperature rise, Class F insulation

cos j = Power factor In

= Rated current [AMPS]

= Rated torque [Lb-in]

Ta / Tn = Starting torque ratio Ia / I n

= Starting current ratio

Tk / Tn = Breakdown torque ratio Jmot

= Inertia of motor [Lb-ft 2]

For Brakes. see page 90.

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MOTOR

THREE-PHASE MOTORS - 4-poles 400 V / 50 Hz

50 Hz h

Jmot

[%]

[lb-ft2]

0.76 0.80

50.0 56.5

0.0050 0.0066

2.1 2.3

0.77 0.75

61.3 62.7

0.0150 0.0181

1.9 2.3

2.0 2.6

0.73 0.74

71.5 69.5

0.0304 0.0392

65.4 87.5

2.3 3.1

2.6 3.6

0.74 0.78

76.2 78.5

0.0670 0.0855

G F

131 178

2.3 2.5

3.0 2.9

0.74 0.73

81.1 82.7

0.107 0.160

5.5 5.5

G G

327 436

2.1 2.5

2.7 2.8

0.81 0.84

85.8 87.0

0.553 0.753

21.5 28.5

6.2 6.5

G H

633 861

2.2 2.6

2.7 3.0

0.84 0.84

88.5 90.0

0.95 1.23

1460 1455

35 44

7.7 8.3

J K

1063 1265

2.7 3.1

3.1 3.4

0.86 0.82

90.0 90.5

1.35 1.35

1465

7.0

1722

2.6

3.2

0.86

91.8

5.70

1470

7.0

2118

2.8

3.2

0.87

92.9

7.60

Ia / I n

[RPM]

In (400 V)* [A]

0.12 0.18

1335 1325

0.46 0.62

2.5 2.6

E E

7.55 11.9

1.8 1.8

1.9 1.9

0.33 0.50

0.25 0.37

1380 1360

0.76 1.10

3.3 3.2

F E

15.1 23.2

2.2 2.1

80 S/4 80 L/4

0.75 1.0

0.55 0.75

1375 1375

1.52 2.10

3.3 4.4

E G

33.4 45.8

90 S/4 90 L/4

1.5 2.0

1.1 1.5

1395 1395

2.81 3.55

4.8 5.4

G H

100 L/4 100 L/40

3.0 4.0

2.2 3.0

1440 1415

5.22 6.54

5.1 5.4

132 S/4 132 M/4

7.5 10

5.5 7.5

1445 1445

11.4 14.8

160 M/4 160 L/4

15 20

11 15

1460 1460

180 MX/4 180 LX/4

25 30

18.5 22

200 L/4

225 S/4

Frame size

[HP]

[kW]

63 S/4 63 L/4

0.16 0.25

71 S/4 71 L/4

Code Letter

Ta / T n

Tk / T n

cos j

[lb-in]

* Motors 3.0 HP (2.20 kW) and below are rated 230D / 400Y - volts. * Motors above 3.0 HP (2.20 kW) are rated 400D / 690Y - volts. For higher efficiency motor see page 87. Performance specifications are subject to change. ABBREVIATION LEGEND

= Rated power [HP]

= Rated speed [RPM]

= Efficiency of motor [%]

Standard efficiency, 1.0 Service factor Inverter duty, TEFC Synchronous speed 1500 rpm @ 50Hz, 4-pole Voltages: 400 - 50 Hz, Three-phase Continuous Duty, 40o C Ambient, up to 3300 ft Elevation Class B temperature rise, Class F insulation

cos j = Power factor In

= Rated current [AMPS]

= Rated torque [Lb-in]

Ta / Tn = Starting torque ratio Ia / I n

= Starting current ratio

Tk / Tn = Breakdown torque ratio Jmot

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= Inertia of motor [Lb-ft 2]

For Brakes, see page 90.

MOTOR

HIGH EFFICIENCY THREE-PHASE MOTORS 4-poles / 230 V / 460 V / 575 V / 60 Hz

60 Hz Frame size

In In In (230 V) (460 V) (575 V) [HP] [KW] [RPM] [A] [A] [A] Pn

Ia / I n

Code Letter

Ta / Tn Tk / Tn cos j

[lb-in]

Jmot

[%]

[lb-ft2]

80 LH/4

1.0

0.75

1750

3.88

1.94

1.5

6.0

36.0

4.6

4.3

0.59

82.5

0.0499

90 SH/4 90 LH/4

1.5 2.0

1.1 1.0

1740 1745

4.3 6.3

2.15 3.15

1.75 2.45

6.3 6.7

J K

54.3 72.2

3.5 4.3

3.8 4.5

0.76 0.71

84.0 84.0

0.0855 0.0929

100 LH/4

3.0

2.2

1765

8.6

4.3

3.4

7.9

107

3.6

4.7

0.73

87.5

0.178

112 MH/4

5.0

3.7

1770

14.4

7.2

5.6

8.1

178

4.0

4.8

0.76

87.5

0.304

132 SH/4 132 MH/4

7.5 10

5.5 7.5

1780 1770

20.9 27.0

10.5 13.5

8.3 10.8

8.2 7.4

L J

266 356

4.3 3.2

4.6 4.0

0.74 0.78

89.5 89.5

0.751 0.841

160 MH/4 160 LH/4

15 20

11 15

1765 1765

35.8 49

17.9 24.5

14.3 19.6

8.1 8.5

J K

527 712

2.6 2.8

3.2 3.5

0.85 0.85

91.0 91.0

1.23 1.35

180 MH/4 180 LH/4

25 30

18.5 22

1770 1770

61 72

30.5 36

24.4 28.8

8.4 8.8

K K

879 1046

2.8 3.1

3.6 3.9

0.83 0.83

92.4 92.4

3.56 4.51

200 LH/4

1770

37.6

8.3

1424

3.0

3.6

0.86

93.0

7.60

ABBREVIATION LEGEND

= Rated power [HP]

= Rated speed [RPM]

= Efficiency of motor [%]

Energy efficient, 1.15 Service factor Inverter duty, TEFC Synchronous speed 1800 rpm @ 60Hz, 4-pole Voltages: 230 / 460 & 330 / 575 - 60 Hz, Three-phase Continuous Duty, 40o C Ambient, up to 3300 ft Elevation Class B temperature rise, Class F insulation

cos j = Power factor In

= Rated current [AMPS]

= Rated torque [Lb-in]

Ta / Tn = Starting torque ratio Ia / I n

= Starting current ratio

Tk / Tn = Breakdown torque ratio Jmot

= Inertia of motor [Lb-ft 2]

Brakes not available for energy efficient motors

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MOTOR HIGH EFFICIENCY THREE-PHASE MOTORS 4-poles 400 V / 50 Hz

50 Hz h

Jmot

[%]

[lb-ft2]

0.75 0.71

84.0 85.0

0.0817 0.0929

4.0

0.74

87.5

0.178

3.3 3.3

4.2 3.2

0.72 0.73

87.4 88.3

0.283 0.304

334 429

3.7 2.9

4.0 3.5

0.73 0.77

90.1 90.8

0.753 0.841

H H

632 861

2.7 2.9

3.2 3.3

0.85 0.86

91.5 92.0

1.23 1.35

7.0 7.3

H H

1063 1266

2.5 2.6

3.2 3.4

0.84 0.84

92.5 93.0

3.56 4.51

7.0

1722

2.6

3.2

0.87

93.5

7.60

Ia / I n

[RPM]

In (400 V)* [A]

1.1 1.5

1430 1435

2.51 3.59

5.2 5.6

H K

66.1 87.8

2.8 3.6

3.1 3.7

3.0

2.2

1465

4.88

6.9

129

3.3

112SH/4 112 MH/4

4.0 5.4

3.0 4.0

1455 1455

6.70 8.90

7.2 6.9

K K

174 234

132 SH/4 132 MH/4

7.5 10

5.5 7.5

1415 1470

12.0 15.5

7.5 6.6

K H

160 MH/4 160 LH/4

15 20

11 15

1460 1460

20.5 27.5

6.9 7.0

180 MH/4 180 LH/4

25 30

18.5 22

1465 1465

34.5 40.5

200 LH/4

1465

Frame size

[HP]

[kW]

90 SH/4 90 LH/4

1.5 2.0

100 LH/4

Code Letter

Ta / T n

Tk / T n

cos j

[lb-in]

* Motors 3.0 HP (2.20 kW) and below are rated 230D / 400Y - volts. * Motors above 3.0 HP (2.20 kW) are rated 400D / 690Y - volts.

ABBREVIATION LEGEND

= Rated power [HP]

= Rated speed [RPM]

= Efficiency of motor [%]

Energy efficient, 1.0 Service factor Inverter duty, TEFC Synchronous speed 1500 rpm @ 50Hz, 4-pole Voltages: 400 - 50 Hz, Three-phase Continuous Duty, 40o C Ambient, up to 3300 ft Elevation Class B temperature rise, Class F insulation

cos j = Power factor In

= Rated current [AMPS]

= Rated torque [Lb-in]

Ta / Tn = Starting torque ratio Ia / I n

= Starting current ratio

Tk / Tn = Breakdown torque ratio Jmot

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= Inertia of motor [Lb-ft 2]

Brakes not available for energy efficient motors

MOTOR

MOTOR DIMENSIONS - THREE PHASE MOTORS

Motor frame size

Dimensions

63 S + L 63 S + L (Bre)

g 5.12 5.12

g1 4.33 4.65

m 0.47 0.55

n 3.94 5.20

o 7.40 9.61

p 3.94 3.43

d 0.43 0.43

l 0.91 0.91

x 0.16 0.14

d2 4.92 4.76

h2 1.22 0.47

71 S + L 71 S + L (Bre)

5.71 5.71

4.68 5.00

0.79 0.87

3.94 5.20

8.39 10.71

3.94 3.43

0.43 0.43

0.91 0.91

0.08 0.14

4.29 5.35

1.14 0.51

80 S + L / LH 80 S + L / LH (Bre)

6.50 6.50

5.51 5.55

0.87 0.95

4.49 6.02

9.09 11.81

4.49 4.25

0.55 0.55

1.18 1.18

0.32 0.20

4.92 6.06

1.02 0.63

90 S + L / SH + LH 90 S + L / SH+LH (Bre 10+20) 90 S + L / SH + LH (Bre 40)

7.28 7.28 7.28

5.71 5.75 5.75

1.02 1.10 1.10

4.49 6.02 6.02

10.75 13.70 13.70

4.49 4.25 4.25

0.75 0.55 0.75

1.58 1.18 1.58

0.35 0.32 0.32

6.30 6.85 6.85

1.34 0.63 0.63

100 L + L/40 / LH 100 L + L/40 / LH (Bre)

7.99 7.99

6.06 6.18

1.26 1.34

4.49 6.02

12.05 15.63

4.49 4.25

0.95 0.95

1.97 1.97

0.24 0.39

6.30 7.56

1.34 0.71

112 MH 112 MH (Bre)

8.98 8.98

6.54 6.58

1.61 1.69

4.49 6.02

12.83 16.69

4.49 4.25

0.95 0.95

1.97 1.97

0.16 0.39

7.09 8.50

1.61 0.71

132 S + M / SH + MH 132 S + M / SH + MH (Bre)

10.47 10.47

7.64 7.60

2.17 1.85

4.80 7.28

16.18 20.39

4.80 5.47

1.26 1.26

3.15 3.15

0.71 0.39

8.66 10.04

1.81 0.83

160 M + L / MH + LH 160 M + L / MH + LH (Bre)

12.60 12.60

9.21 9.21

3.07 3.07

6.50 6.50

19.13 25.71

6.50 6.50

1.50 1.50

3.15 3.15

0.91 0.75

9.84 12.09

2.09 0.98

180 M + L / MH + LH 180 M + L / MH + LH (Bre)

14.09 14.09

10.20 10.20

4.45 3.86

5.20 6.38

23.70 27.84

5.98 6.38

1.89 1.89

4.33 4.33

0.91 0.91

9.84 9.84

2.09 2.09

200 L / LH 200 L / LH (Bre)

15.67 15.67

12.05 12.05

4.33 4.33

7.56 7.56

27.09 33.54

10.24 10.24

2.17 2.17

4.33 4.33

0.67 0.67

13.39 15.28

3.15 1.58

225 S 225 S / (Bre)

15.67 15.67

12.05 12.05

4.33 4.33

7.56 7.56

27.09 33.54

10.24 10.24

2.17 2.17

4.33 4.33

0.67 0.67

13.39 13.39

3.15 3.15

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BRAKES

BRAKE MOTOR

OVERRUNNIG CLUTCH AND BACKSTOP

INCREMENTAL ENCODER AND FORCED VENTILATION)

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BRAKES

BRAKE MOTORS The motors listed in this catalogue can be modified to brake motors by adding a spring loaded single- disc brake.

Following combinations are possible:

Frame size

Braking torque ( = Brake size)

Motor length extended by approx

[Nm] (LB-FT)

[IN] 63 S + L

2.21

5 (4)

10 (7)

71 S + L

2.28

5 (4)

10 (7)

80 S

2.72

5 (4)

(7)

20 (15)

80 L

2.72

5 (4)

10 (7)

20 (15)

80 L/40

2.72

10 (7)

20 (15)

90 S

2.95

10 (7)

20 (15)

40 (30)

90 L

2.95

10 (7)

20 (15)

40 (30)

90 L/40

2.95

20 (15)

40 (30)

100 L

3.58

20 (15)

40 (30)

60 (45)

100 L/40

3.58

20 (15)

40 (30)

60 (45)

132 S

4.21

60 (45)

132 M

4.21

60 (45)

100

(75)

150 (110)

132 M/40

4.21

60 (45)

100 (75)

150 (110)

160 M + L

6.58

100 (75)

150 (110)

180 M + L

4.13

250 (185)

400 (295)

200 L

6.46

250 (185)

400 (295)

225 S

6.46

Add. weight net. approx. LBS

2.2

3.3

5.5

8.8

13.2

100 (75)

19.8

250 (185)

400 (295)

800 (590)

132

Bold printed brake torque = Standard items

Example for ordering:

SK 472 - 80 S/4 BRE 10

As can be seen from the above table each motor frame is available with various brake sizes. For normal applications we recommend sizing the brake to 1,5 - 2 time, the rated torque of the motor. For special applications e.g. lifting gear etc. it may be necessary to increase this to 3 times the rated torque of the motor. For other applications it may be recommended to reduce the brake torque e.g. for a Mass-Acceleration-Factor of m af 続 3. If fairly large masses have to be stopped, we recommend the use of brakes with sufficient capacity.

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NOTES

GENERAL PARTS LIST

SK 172 … – SK 972 ...

9 10 11 12 13 30 33 40 42 45

Flange Driven gear Pinion shaft Driving gear Driving pinion Gear case Gearbox cover Output shaft Key Output shaft bearing

46 47 48 65 67 80 91 96 113 114

Output shaft bearing Pinion shaft bearing Pinion shaft bearing Shaft seal O-Ring Spacer Seal Seal Drain plug Seal

118 120 124 125 127 134 135 146 147 153 154

Bolt Key Shim Snap ring Bolt Vent plug Seal Key Shim Bolt Grooved dowel pin

SK 172 F … – SK 972 F ...

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GENERAL PARTS LIST

SK 273 … – SK 973 ... 9 10 11 12 13 14 15 30 33 34 40 42 45 46 47 48 49 50

Flange Driven gear Pinion shaft Driving gear Driving pinion Driving gear Pinion shaft Gear case Gearbox cover Gearcase cover Output shaft Key Output shaft bearing Output shaft bearing Pinion shaft bearing Pinion shaft bearing Pinion shaft bearing Pinion shaft bearing

65 66 67 72 80 81 82 83 84 85 90 91 96 111 112 113 114 118

Shaft seal Shaft seal O-Ring Locking cap Spacer Spacer Spacer Supporting disc Supporting disc Supporting disc Seal Seal Seal Snap ring Shim Drain plug Seal Bolt

119 120 123 124 125 127 133 134 135 139 140 141 142 143 146 147 149 153 154

Bolt Key Supporting disc Shim Snap ring Bolt Key Vent plug Seal Snap ring Shim Shim Supporting disc Supporting disc Key Shim Snap ring Bolt Grooved dowel pin

SK 273 F … – SK 973 F ... www.nord.com

GENERAL PARTS LIST

56C - 180 TC IEC 63 – IEC 112

180 TC - 280 TC IEC 132 – IEC 180

Clutch pinion shaft

Clutch shaft

Coupling

IEC Adapter

Coupling

Clutch shaft bearing

Oil flinger

Shaft seal

101

Key

160

Snap ring

161

Key

163

Shim

164

Snap ring

165

Set screw

166

Snap ring

197

Bolt

198

Spring washer

IEC 200

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GENERAL PARTS LIST

with solid input shaft

13 14 38 57 58 70 71 160

Clutch pinion shaft Clutch shaft IEC Adapter Clutch shaft bearing Clutch shaft bearing Shaft seal Shaft seal Snap ring

161 162 163 164 165 166 167 168

Key Key Shim Shim Shim Snap ring Snap ring Snap ring

900 901 902 902-1 904 905 906 907 908 909 910 911 916 918 919 929 932 932-1 933 939 940 940-1 947 948 952 955 988

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Rotor with shaft, plain Rotor with shaft, gearcut End shield B Bolt Shaft seal Bearing A Bearing shim Terminal box frame Terminal box cover Terminal box frame gasket Terminal box cover gasket Terminal board Stator case Key Snap ring Bearing B End shield B Bolt Shaft seal Fan Fan cover Oval flat-head screw Snap ring Snap ring Spacer Plug Seal

NOTES