Adjustment and Marking of Final Drive Gear Sets

1. Identification 0397 signifies an Oerlikon gear set with a ratio of 37:9

2. Pairing number (312) of final drive gear set

3. Deviation (tolerance) "r" is based on the test machine master gauge used during production. The deviation "r" is always given in 1/100 mm.

Example: 25 signifies "r" = 0.25 mm

Ro - Length of test machine master gauge

Ro - Ring gear diameter 170 mm = 54.95 mm

Ro - Ring gear diameter 180 mm = 59.65 mm

R - Actual dimension between ring gear axis and face of pinion shaft in position of quietest running for this gear set

Vo - Hypoid offset