What does a good ring and pinion pattern look like?
What does a good ring and pinion pattern look like?
PATTERN INTERPRETATION (RING GEAR) The drive pattern should be centered on the tooth. The coast pattern should be centered on the tooth, but may be slightly toward the toe. There should be some clearance between the pattern and the top of the tooth. Backlash correct.
What is the heel of a ring gear?
The HEEL of the gear tooth is the portion of the tooth surface at the outer-end. The TOP LAND of a gear tooth is the surface of the top of the tooth. Every gear has a characteristic pattern. There are two types of gears which are determined by the machining method.
How can I improve my backlash?
Backlash adjustment can be made by adjusting nuts or by moving shims from one side to the other. To increase backlash, move the ring gear away from the pinion gear. To decrease backlash, move the ring gear towards the pinion gear.
How do I know what gear pattern I have?
Use gear marking compound to paint all of the ring gear teeth. Load the ring gear and run a full contact pattern check. Observe all gear teeth for proper contact pattern and a uniform pattern from tooth to tooth. The contact pattern on the drive side (convex) of the tooth is mostly towards the toe.
How do you know if your ring and pinion is bad?
The noise may change while turning. Regular clunking every few feet may indicate broken ring or pinion gears. Banging or clunking only on corners can be caused by broken spider gears, lack of sufficient positraction lubrication, or worn positraction clutches. Rumble while turning may indicate bad wheel bearings.
What should backlash?
At low power outputs, backlash results in inaccurate calculation from the small errors introduced at each change of direction; at large power outputs backlash sends shocks through the whole system and can damage teeth and other components. It should be less than 1/10th of module.
How to make a ring and pinion tooth pattern?
Ring and Pinion Tooth Contact Patterns Apply tooth contact compound to the ring gear in two different places. Carefully apply moderate pressure to the outside ring gear. Use something soft like a small block of wood.
What does a low pinion tooth contact pattern mean?
This pattern indicates excessive pinion depth. When the pinion is too far in towards the ring gear the pattern will be low toward the base of the gear teeth. Moving the pinion in toward the ring gear causes the pattern to move toward the bottom or root of the gear teeth.
What’s the proper ring and pinion gear pattern?
Interpretation & Adjustment Guide. Ring and Pinion Gear Pattern is one of the most valuable tools for determining if a differential is properly set up. The images below illustrate both acceptable and unacceptable ring and pinion gear patterns.
Where are the teeth on a ring gear?
This is an ideal ring gear tooth contact pattern. It’s centered between the top and the bottom of the gear’s teeth. This is also an ideal contact pattern. This image shows the coast side of the ring gear.