Ring And Pinion Contact Pattern

A thicker drive pinion shim is needed.

Ring and pinion contact pattern.

The low contact pattern indicates that the drive pinion is installed too deep into the carrier. Tooth contact pattern shown on the drive side of the gear teeth. The images below illustrate both acceptable and unacceptable ring and pinion gear patterns. The differential ring gear backlash is correct.

Ring gear contact pattern interpretation of face hobbed uniform tooth depth gear teeth proper ring gear to pinion gear contact pattern is critical for quiet and trouble free gear set operation. A contact pattern that is worn in the center of the differential ring gear tooth toward the heel. Ring and pinion tooth contact pattern. Toe contact pattern is concentrated off the toe end of the drive gear tooth.

To check the accuracy of your adjustments coat the ring gear teeth with a thin coat of red lead white grease hydrated ferric oxide yellow oxide or iron or prussian blue. Moving the ring gear toward the pinion removes the backlash and moves the contact pattern closer to the toe. This pattern indicates excessive. Use gear marking compound to paint all of the ring gear.

Ring and pinion gear pattern is one of the most valuable tools for determining if a differential is properly set up. For more in depth information about ring and pinion gear patterns and how. The ring and pinion tooth contact pattern is used to double check ring and pinion adjustment. The ring gear is too far in toward the pinion.

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