Ring And Pinion Gear Pattern Chart

Ring and pinion gear pattern is one of the most valuable tools for determining if a differential is properly set up.

Ring and pinion gear pattern chart.

Load the ring gear and run a full contact pattern check. Toe contact pattern is concentrated off the toe end of the drive gear tooth. Ring gear and pinion tooth pattern interpretation the final pinion position will be verified by using the gear contact pattern method described as follows. Begin by setting proper pinion bearing preload total turning preload and ring gear backlash.

Proper ring gear to pinion gear contact pattern is critical for quiet and trouble free gear set operation. When setting the pinion position many of the service manuals required a final pinion position check by using gauges that verified the dimension from the center line of the differential carrier center line of ring gear to the face of the pinion button. This pattern indicates excessive pinion depth. Moving the ring gear away from the pinion increases backlash and causes the pattern to move out toward the heel of the ring gear.

Move the ring gear away from the pinion increase backlash while maintaining minimum backlash. Ring and pinion gear pattern interpretation adjustment. Ring gear and pinion tooth pattern interpretation. The ring gear is too far in toward the pinion.

The images below illustrate both acceptable and unacceptable ring and pinion gear patterns. Move the ring gear closer to the pinion decrease backlash while maintaining minimum backlash. Ring gear tooth profile face hobbing face milling the toe of the gear is the portion of the tooth surface at the end towards the center. The heel of the gear tooth is the portion of.