Kyosho UM322C - Steel Pinion Gear (22T) 1/48  [KY-UM322C]

Steel pinion for 1/48 scale

This Kyosho UM322C steel pinion gear is a direct spare part option for 1/48 scale RC models that use a 22-tooth motor pinion. It is supplied as an individual replacement pinion to restore or fine-tune the drive train where tooth count and material consistency matter.

Design focus is practical: the part preserves tooth profile and spacing typical for a 22T pinion in small-scale motors, so it is suitable when matching existing gear sets or experimenting with mesh and gear ratio changes on 1/48 platforms. Verify tooth count and mesh clearance against your existing spur gear before fitting.

Installation notes: inspect the motor shaft and set screw or press-fit arrangement on your motor, confirm axial position and backlash, and trim or shim the motor mount if necessary to achieve correct mesh. Do not assume shaft diameter or set screw type—measure the existing assembly before installation.

Use this pinion when replacing a worn 22T steel pinion or when adjusting final drive ratios on a 1/48 scale RC setup, always checking fitment and gear mesh prior to running.