37T 48 Pitch Pinion Gear Compatible with RC Drivetrains - Yokomo YOKPG4837  [YOKPG4837]

Compatibility and Maintenance for 48 Pitch Pinions

The Yokomo YOKPG4837 is a 37T pinion cut for 48 pitch systems and finished to a super hard precision standard. It is intended as a replacement or tuning pinion to fine-tune motor-to-spur ratios while fitting into standard hobby electric gearboxes when matched with the correct spur gear and shaft adapter.

Material selection and treatment aim to balance wear resistance and accurate tooth profile; for best results use only 48 pitch spur gears and confirm the motor shaft or adapter fits securely. Proper gear mesh and regular inspection for burrs or damage will keep the drive train quieter and more reliable over time.

Fitting advice: ensure the pinion seats squarely on the shaft and the set-screw has solid engagement, apply threadlocker on steel set-screws where appropriate, and re-check mesh after a short run-in to confirm stable engagement and correct backlash.