Yokomo YOKPG6427 - Precision Pinion Gear 64 Pitch 27T  [YOKPG6427]

Precision Pinion for 64-Pitch Drivetrains

This is an RC-scale 64 pitch pinion gear with a 27-tooth count, intended as a direct replacement or spare for 64 pitch gear trains. The part serves a focused role in final drive ratio selection, allowing fine steps in acceleration and top-speed balance without changing spur gear geometry.

When planning a change, match the pinion to a 64 pitch spur gear and confirm tooth count fits your tuning goal. Increasing pinion teeth typically raises top speed at the expense of low-end acceleration, while fewer teeth favour quicker acceleration. Use these principles to dial in handling and motor load for your track or driving style.

Installation notes: ensure correct gear mesh and parallel alignment between motor shaft and spur gear to avoid premature wear and noise. Set gear mesh conservatively at first, verify free rotation across the range of motion, then secure all fasteners. Run-in with light loads and inspect the teeth after initial sessions for correct seating.

Maintenance tips: check for burrs or nicks on the tooth faces, confirm retention hardware is secure, and replace any worn mating spur gear to preserve drivetrain efficiency. Proper mesh and routine inspection extend service life and keep performance predictable.