Drive Trains, Adjusting and Labeling

Pinion and Ring Gear, Adjusting

• The pinon and the ring gear must be adjusted exactly for the service life and quiet running of the final drive. For this reason, the pinions and ring gears are paired during the manufacturing process and are checked for wear and noise. Moving the pinion by the axle adjusts the quiet running because the torsional backlash is moved within the specified tolerance.

• The difference r, in reference to the master gauge Ro, is written on the outer circumference of the ring gear.

• Replace the drive train (pinion and ring gear) together only.

Drive Trains, Adjusting and Labeling





1 "O937" means Oerlikon-drive train a 37 : 9 ratio

A Klingelnberg-drive train "K937" or a Gleasen-drive train "G937" may also be installed.

2 - 312 - Drive Train Pairing Number

3 Dimension "r" refers to the master gauge used by the test machine during production. Dimension "r" is always given in 1/100 mm. Example: "25" means r = 0,25 mm





Ro - Length of the master gauge in the test machine "Ro"

Ro - Ring gear = 57.50 mm

R - Actual dimension between the ring gear and the front side of the pinion at the point of the greatest running smoothness for this one drive train.

Vo - Hypoid gear