24T 48-Pitch 45 Steel Motor Pinion MG524T/0.5M for 5mm Shaft by GPM  [MG524T/0.5M]

Pinion technical summary

This GPM MG524T/0.5M is a 24-tooth motor pinion fabricated from 45 steel, specified as 48 pitch with a 0.5mm module and a 5mm motor tooth diameter. It is built for small electric RC drivetrains as a direct replacement or for precise ratio adjustments, and it is not intended for use on full-size machines.

Fitment depends on motor shaft type and tooth diameter; this pinion matches motors that accept a 5mm motor tooth diameter and operate with 48 pitch gearing. Confirm shaft diameter, keyway or set screw location, and internal clearance in your gearbox or motor mount to ensure correct mesh with the spur gear.

Installation notes: position the pinion on the motor shaft and secure it using the motor's original retaining method or set screw. Check gear mesh by placing a thin strip of paper between the pinion and spur and rotating the drivetrain, then adjust backlash using the motor plate or shims. After first runs re-check set screw torque and alignment to avoid slippage.

Tuning role: swapping to this 24T pinion alters the drive ratio and will influence acceleration versus top speed depending on your spur tooth count and motor characteristics; perform incremental changes and controlled tests to measure effects.