Precision Pinion Gear 29T 48P - Yokomo YOKPG4829  [YOKPG4829]

Technical Overview

This precision pinion is sized for 48 pitch gear trains used in electric RC kits. The YOKPG4829 is produced with attention to tooth geometry and hardness so mesh remains reliable under normal operating loads.

Function: fit the pinion onto the motor shaft to alter overall gear ratio, tune responsiveness between acceleration and top speed, and fine-tune mesh during drivetrain setup. It is designed as an upgrade to replace worn or lower-hardness components.

Fitment checklist: mount on a clean motor shaft, position the set screw on a flat if present, and set backlash using appropriate shims. Inspect mesh while running a few low-throttle cycles with servos and ESC before final tightening. A short break-in under light load helps ensure correct seating.

Longevity advice: the ultra-hard finish reduces wear compared to softer pinions but makes correct gear alignment critical to prevent premature tooth damage. Whenever you alter tooth count, double-check mesh and motor timing where necessary.