Ring And Pinion Pattern Chart

Moving the ring gear away from the pinion increases backlash and causes the pattern to move out toward the heel of the ring gear.

Ring and pinion pattern chart.

The ring gear is too far in toward the pinion. Move the pinion out away from the differential carrier subtract pinion shim. Proper ring gear to pinion gear contact pattern is critical for quiet and trouble free gear set operation. The images below illustrate both acceptable and unacceptable ring and pinion gear patterns.

Ring gear and pinion tooth pattern interpretation. When the pinion is too far in towards the ring gear the pattern is low toward the base of the gear teeth. This pattern indicates excessive pinion depth. Begin by setting proper pinion bearing preload total turning preload and ring gear backlash.

The heel of the gear tooth is the portion of. 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. Ring gear and pinion tooth pattern interpretation the final pinion position will be verified by using the gear contact pattern method described as follows. 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.

Load the ring gear and run a full contact pattern check. Ring and pinion gear pattern interpretation adjustment. Ring and pinion gear pattern is one of the most valuable tools for determining if a differential is properly set up. Use gear marking compound to paint all of the ring gear teeth.