Ring And Pinion Pattern Chart

Ring gear and pinion tooth pattern interpretation.

Ring and pinion pattern chart.

Begin by setting proper pinion bearing preload total turning preload and ring gear backlash. Move the pinion out away from the differential carrier subtract pinion shim. For more in depth information about ring and pinion gear patterns and how. Ring gear and pinion tooth pattern interpretation the final pinion position will be verified by using the gear contact pattern method described as follows.

This pattern indicates excessive pinion depth. The images below illustrate both acceptable and unacceptable ring and pinion gear patterns. Ring and pinion gear pattern is one of the most valuable tools for determining if a differential is properly set up. Low contact pattern is concentrated in the root of the drive gear tooth.

Use gear marking compound to paint all of the ring gear teeth. 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. Proper ring gear to pinion gear contact pattern is critical for quiet and trouble free gear set operation. Ring and pinion gear pattern interpretation adjustment.

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. When the pinion is too far in towards the ring gear the pattern is low toward the base of the gear teeth. Moving the ring gear away from the pinion increases backlash and causes the pattern to move out toward the heel of the ring gear. Load the ring gear and run a full contact pattern check.