Yokomo YOKPG4829 - Precision Pinion Gear 48 Pitch 29T Ultra-Hard  [YOKPG4829]

48P 29T Precision Pinion

This is a compact, RC-scale precision pinion intended for use in 48 pitch gear trains. The YOKPG4829 is built for consistent tooth form and material hardness so it maintains mesh stability under typical electric model loads.

Use case and role: fit the pinion on your motor shaft to alter gear ratio, influence acceleration and top speed, and refine mesh behavior when tuning drivetrain efficiency. It is a component-level upgrade intended to replace worn or lower-hardness pinions.

Installation notes: mount on a clean motor shaft, ensure the set screw seats on a flat if present, and use correct shimming to set backlash. Check the mesh across a few servos/ESC cycles at low throttle before finalizing fasteners. A short run-in under light load helps confirm stable engagement.

Durability and tuning guidance: the ultra-hard finish reduces wear compared with softer pinions but requires careful alignment with the spur gear to avoid premature tooth damage. When changing tooth count to adjust ratio, re-check mesh and motor timing if applicable.