Kyosho UM323C - Steel Pinion Gear (23T) 1/48  [KY-UM323C]

Steel 23T pinion for 1/48 scale

This Kyosho UM323C steel pinion is an RC-scale drivetrain component specified as 23 teeth for 1/48 scale applications. As a motor pinion it takes the mechanical role of transferring torque from the motor to the spur gear, so attention to mesh and alignment is essential for smooth power delivery and reduced wear.

Use this pinion for routine replacement or as part of basic gearing changes when tuning acceleration or top speed on small electric micro chassis. Before fitting, verify shaft diameter and the set screw or clamping method on your motor to ensure a secure fit. During installation set a correct gear mesh with a small clearance to avoid binding, then secure and test at low throttle to confirm smooth engagement.

Maintenance is straightforward: inspect teeth for burrs or nicks, remove debris, and replace if wear affects mesh. For quieter operation consider confirming spur gear condition and bearing play in the drivetrain rather than modifying the pinion surface finish.