48 Pitch 37T Precision Pinion Gear - Yokomo YOKPG4837  [YOKPG4837]

Precision 48 Pitch 37T Pinion

This Yokomo YOKPG4837 pinion is built for 48 pitch RC systems, featuring 37 teeth and a super hard, precision finish. Use it as a replacement or tuning pinion to change motor-to-spur ratios and tune the balance between acceleration and top speed while managing motor load in hobby electric models.

The material and heat treatment focus on wear resistance under normal hobby use, so pair the pinion with matching 48 pitch spur gears and properly sized motor shafts or adapters. Maintain correct gear mesh, inspect for burrs or damage before fitting, and keep the mesh set to minimise noise and wear over repeated runs.

Installation tips: verify the motor shaft seating and set-screw engagement, apply threadlocker to steel set-screws where appropriate, and re-check mesh after a short run-in period. Track ratio changes when swapping tooth counts and monitor ESC and motor temperatures during initial test runs to avoid overheating in tightly geared setups.