GPM Racing 40CR Steel Motor Gear 14T (Module:0.5mm,motor Tooth Diameter:3.175mm) (MG314T/0.5M)

MG314T/0.5M Pinion Product Notes

The MG314T/0.5M is supplied as a replacement motor pinion for small electric RC vehicles that accept a 0.5mm module and a 3.175mm motor tooth diameter. Constructed from 40Cr steel with a hardened black finish, it aims to deliver stronger wear resistance and reliable gear contact.

Key mechanical details: 14 teeth, module 0.5mm, motor tooth diameter 3.175mm, and a circular motor bore fastened by two 3×3 set screws. Those fixed measurements and fasteners define compatibility with a corresponding spur gear and gearbox layout.

Installation and tuning notes: check the MG314T/0.5M module and tooth count and confirm the 3.175mm diameter matches your motor and spur before ordering. Install by sliding onto the motor shaft, set mesh and backlash with the spur, then tighten the two 3×3 set screws progressively to avoid binding. Choosing a different tooth count alters the gear ratio and will change speed and torque characteristics.

Which dimensions are critical to check before purchase?

Ensure your motor accepts a 3.175mm motor tooth diameter and that your spur uses a 0.5mm module; matching these to the MG314T/0.5M is essential for correct installation.

What is the best practice for securing the pinion?

After setting proper mesh, tighten each 3×3 set screw a little at a time while keeping the pinion aligned on the shaft to prevent misalignment and shaft wear.

How does the hardened finish help the gear?

The hardened black finish on 40Cr steel increases surface durability and helps reduce wear compared with non-hardened pieces, improving the functional life of the MG314T/0.5M pinion. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.