MG314T/0.5M 40Cr Steel 14T Motor Pinion (3.175mm) by GPM  [MG314T/0.5M]

Hardened 40Cr 14T Pinion Details

The MG314T/0.5M motor pinion is a direct-fit replacement for small electric RC models that require a 0.5mm module and a 3.175mm motor tooth diameter. Its 40Cr steel build with a hardened black finish offers increased wear resistance and consistent meshing during normal use.

Key mechanical details: 14 teeth, module 0.5mm, motor tooth diameter 3.175mm, and a round motor bore secured by two 3x3 set screws. These fixed dimensions determine correct engagement with a matching spur gear and gearbox layout.

Installation and tuning notes: confirm the MG314T/0.5M module, tooth count, and 3.175mm motor tooth diameter against your motor and spur before purchase. Slide the pinion onto the motor shaft, set the mesh and backlash with the spur, then tighten both 3x3 set screws progressively to avoid shaft binding. Altering the pinion tooth count will change gear ratio, so pick a count that matches your tuning goals and drivetrain limits.