VO, VOK, VOS Steered and non-driven: Front axles for road vehicles
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VOK-03
MAN front axles are supplied from high-volume commercial-vehicle series production and satisfy the most demanding standards. They are supplied as dropped-centre cranked axles for low-floor vehicles. Straight axle beams are also available, together with independently sprung axles for a high standard of bus and coach ride quality. The axle beams of double-T pattern for up to 9.2 t axle loads are forged from high-strength heat-treated steel. The beams of VOK-06-B, VOK-0... low-floor axles are cast, with a hollow centre profile. The wheel elements are attached by kingpin pivots, with a lower needle roller bearing and an upper plain bearing. The kingpins on axles with independent suspension have an upper needle roller bearing as well. An anti-friction thrust bearing is fitted. To withstand radial forces, high-quality tin-bronze plain bearings are used; axial loads are absorbed by hardened sliding blocks with an anti-friction bearing.
VO, VOK and VOS axles have maintenance-free wheel bearings (hub units). On these axles, brake discs can be changed without separating the bearings. VOK-06-B and VOK-07-B axles have been specially developed for low-floor buses and have a lowered axle beam. VOK-07-F and VOK-08-F axles are fort the American market and are 102“ wide; the VOK-07/08-F can be supplied with either drum or disc brakes. All brake linings are asbestos-free. The axles can be equipped with an anti-lock brake system (ABS). Only wheels and tyres approved by MAN are to be fitted. The delivery specification includes the brake cylinders. The brakes are air-operated.
Most of these axles are equipped with disc brakes (see table), automatic pad wear compensation and an electrical wear indicator.
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VOK-08
Technical data/regular width Truck + bus A= C= D= E= F=
New type reference Max. axle load (t) Overall width excl. tyres, with press.-steel wheels (mm) Width between springs (mm) Distance from track rod to axle centreline (mm) Kingpin spacing (mm) Distance from wheel centre to spring mounting (mm) Wheel size (inches) Steering (r = right, l = left) – Inside wheel steering lock angle (°) Outside wheel steering lock angle (°) Number of wheel studs/hole pitch circle diam. (-/mm) Disc brakes, air-operated Brake disc diameter (mm) Brake cylinder diameter (inches) Weight without wheels (kg)
Technical data/width 102” Bus A= B= C= D= E=
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New type reference Max. axle load (t) Overall width excluding tyres (mm) Width over brake drums/hubs (mm) Width between springs (mm) Distance from track rod to axle centreline (mm) Kingpin spacing (mm) Wheel size (inches) Steering (r = right, l = left) – Inside wheel steering lock angle (°) Outside wheel steering lock angle (°) Number of wheel studs/hole pitch circle diam. (-/mm) Disc brakes, air-operated Drum brakes, air-operated, cam-type Disc or drum diameter (mm) Brake lining width (mm) Brake cylinder diameter (inches) Weight without wheels, including oil (kg)
Not available when closing for print. Please consult MAN.
New type reference VOK – 07 B/F For installation by other companies Bus Nominal axle load in tonnes Cranked Non-driven Front axle
VOK-07-B
VOK-03 3.4 2288 880 176 1757 70 17.5 r/l 52 33.5 6/245 335 16/20 211
VOK-05 4.8 2282 880 176 1723 70 17.5 r/l 52 33.5 6/245 335 16/20 237
VOK-07-F 7.2 2578 – 1385 370 1921 22.5 r/l 53° 37° 46’ 10/335 – 432 – 20/24 480
VOK-07-F 7.2 2596 2483 1385 370 1921 22.5 r/l 53° 37° 46’ 10/335 – 410 160 20/24 480
VOK-06 6.3 2455 880 242 1822 100 19.5/22.5 r/l 52 33.5 8/275 377 20/24 346
cranked axle beam VOK-07 VOK-08 7.1 8.2 2478 2478 880 880 245 245 1819 1819 85 110 22.5 22.5 r/l r/l 49 49 33 33 10/335 10/335 432 432 20/24 20/24 411 454
cranked axle beam VOK-08-F 8.0 2591 2481 1260 440 1903 22.5 r/l 51° 38° 47’ 10/335 – 410 180 20
VOK-08-F 8.0 2573 – 1260 440 1903 22.5 r/l 50° 38° 22’ 10/335 – 432 – 16/20
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VOK-09 9.2 2478 880 245 1819 110 22.5 r/l 49 33 10/335 432 20/24 457
VOK-06-B 6.2 2352 1162 370 1695 218 22.5 r/l 53 37 10/335 432 16/20 465
VOK-07-B 7.2 2493 1300 370 1836 220 22.5 r/l 53 37 10/335 432 16/20 475
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VO-09
Technical data Truck + Bus A= C= D= E= F=
New type reference Max. axle load (t) Overall width excl. tyres, with press.-steel wheels (mm) Width between springs (mm) Distance from track rod to axle centreline (mm) Kingpin spacing (mm) Distance from wheel centre to spring mounting (mm) Wheel size (inches) Steering (r = right, l = left) – Inside wheel steering lock angle (°) Outside wheel steering lock angle (°) Number of wheel studs/hole pitch circle diam. (-/mm) Disc brakes, air-operated Drum brakes, air-operated Disc or drum diameter (mm) Brake lining width (mm) Brake cylinder diameter (inches) Weight without wheels (kg)
VO-09 9.2 2478 880 245 1819 5 22.5 r/l 50 33.5 10/335 – 432 – 20/24 454
New type reference VOS – 08 – B Bus Nominal axle load in tonnes Swing axle (independent suspension) Non-driven Front axle
MAN Commercial Vehicles Group Engines Business Unit Department MVL P.O. Box 44 02 58 90207 Nuremberg, Germany Fax: +49 (0) 911 420 1932 engines.components@de.man-mn.com www.man-mn.com/engines An MAN Group company
D113.70/E I br 08063 I Printed in Germany Text and illustrations not binding. We reserve the right to make changes in line with technical progress.
VOS-08-B
Straight axle beam VO-09 VOS-08-B 9.2 8.2 8.2 2478 2488 2488 880 1172 1172 245 – – 1819 1824 1824 5 – – 22.5 22.5 22.5 r/l l r 50 56 56 33.5 50 50 10/335 10/335 10/335 – – – 410 432 432 160/180 – – 24/27 20/24 20/24 440 360 360