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Ring And Pinion Contact Pattern

Ring And Pinion Contact Pattern - A good contact pattern is one located in the center of the gear teeth (fig. Load the ring gear and run a full contact pattern check. High contact pattern is concentrated at the crown of the drive gear tooth. Web turn the ring gear one way and then the other to rub the teeth together, producing a contact pattern on the teeth. Web improper gear spacing will lead to wear and damage to your gear set. Worn carrier or pinion bearings can create excessive play between the gears and produce an uneven wear pattern or chipping teeth. If the pattern is heavy on the “heel” (outboard area of the ring gear teeth), add shims. The top land of a gear tooth is the surface of the top of the tooth. Use shims to move the ring gear closer to the pinion gear to decrease backlash. The coast side contact pattern will also move down towards the flank but out slightly towards the heel of the ring gear.

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Load the ring gear and run a full contact pattern check. Web the final pinion position will be verified by using the gear contact pattern method described as follows: Web this will move the drive side contact point down towards the gear flank (root) and slightly in towards the toe. Use shims to move the pinion closer to the ring gear to move the drive pattern deeper on the tooth (flank contact) and slightly toward the toe.

High Contact Pattern Is Concentrated At The Crown Of The Drive Gear Tooth.

Ideally, the contact pattern should be seen in the If the pattern is heavy on the “heel” (outboard area of the ring gear teeth), add shims. Use shims to move the ring gear closer to the pinion gear to decrease backlash. Use shims to move the ring gear farther from the pinion gear to increase backlash.

Use Shims To Move The Pinion Closer To The Ring Gear To Move The Drive Pattern Deeper On The Tooth (Flank Contact) And Slightly Toward The Toe.

Web learn more about ring gear patterns in our “how to create & read ring gear patterns” article. Web reading and interpreting gear patterns can be very confusing if they aren't obvious patterns. Web proper ring gear to pinion gear contact pattern is critical for quiet and trouble free gear set operation. The top land of a gear tooth is the surface of the top of the tooth.

Rotate The Ring Gear Several Times By Hand And Inspect The Ring Gear Teeth.

If your gear tooth pattern is too low, down towards the gear flank (root), you will need to decrease your pinion. (4) thinner pinion position shim with the backlash constant moves the pinion further from the ring gear. Coast pattern moves deeper on the tooth and toward the heel. I have included two charts here to help you.

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