Pinion and Ring Gear

Pinion and Ring Gear

• Careful adjustment of pinion and ring gear is important for service life and smooth running of final drive. For this reason, the drive pinion and ring gear are matched together during manufacture, and checked to ensure a good mesh pattern and quiet running in both directions of rotation. The location for the smoothest running is determined by moving drive pinion axially whereby ring gear is moved far enough out of the backlash-free position so that the backlash is within specified tolerances.

• The object of the adjustment is to reproduce the setting for quietest possible running, as obtained on the test machine in production.

• The final drive set (drive pinion and ring gear) may only be replaced together as a matched pair.

• Observe the general repair instructions for bearings and shims.

• If gear set is replaced, then always replace double angular contact ball bearing on drive pinion with it.