MG217T/0.5M 40Cr 17T Motor Pinion for RC Motors by GPM  [MG217T/0.5M]

17T Pinion — 0.5M Module Motor Gear

This MG217T/0.5M motor pinion is designed for electric RC drivetrains, delivering a 17-tooth profile matched to a 0.5mm module and a 2.2mm motor bore. The pinion is formed from 40Cr steel and finished in hardened black to increase surface wear resistance compared with typical stock gears.

The pinion uses a round motor hole and is secured with two 3x3 set screws to fasten onto compatible motor shafts. Confirm your motor has a 0.5mm module and a 2.2mm bore before ordering to ensure correct mesh and shaft fitment.

When used for tuning or maintenance the MG217T/0.5M functions as a direct replacement to change final drive ratios or replace worn gears; the hardened finish helps extend service life but does not alter the gear geometry, so always check mesh and backlash after installation.