13T 0.5M Motor Pinion MG313T/0.5M for 3.175mm Shafts by GPM  [MG313T/0.5M]

The MG313T/0.5M motor gear is an RC pinion crafted for direct replacement on motors matching the listed tooth diameter and module. Constructed from 40Cr steel with a hardened black finish, the gear is designed to resist wear and provide extended service life under normal hobby conditions.

Key details: 13 teeth (13T), 0.5mm module, motor tooth diameter 3.175mm, and a round motor bore. The pinion is retained by two set screws (3x3) for straightforward mounting on compatible motor shafts. Check your motor dimensions before purchasing to ensure correct fitment.

Mounting and tuning guidance: fit the pinion so the set screws contact a flat or keyed section of the shaft, tighten each screw gradually and check mesh with the spur gear to prevent binding. Changing pinion size alters the final drive ratio, affecting acceleration and top speed; use this part when adjusting gearing to achieve desired performance.