22T Motor Pinion MG322T/0.5M 40Cr Hardened Steel (Module 0.5mm) by GPM  [MG322T/0.5M]

40Cr hardened 22T pinion details

Designed for RC motor use, this 22-tooth gear is defined by its dimensions: 22T, module 0.5mm, and motor tooth diameter 3.175mm. The pinion is constructed from 40Cr steel and finished with a hardened black coating to improve resistance to tooth wear versus untreated parts.

Construction specifics: the gear features a round centre hole that matches motors with the specified tooth diameter and secures to the motor shaft using two 3x3 set screws to form a dependable mechanical joint. These features help maintain correct mesh and reduce the chance of slippage under normal operating conditions.

Choosing the right part: verify that your motor pinion uses module 0.5mm and a 3.175mm tooth diameter before purchasing. When installing, check mesh against the spur gear and consider thread locking the set screws where appropriate for your configuration.

Performance role: upgrading to a hardened 40Cr pinion is a common maintenance move to boost drivetrain durability in setups prone to abrasive wear; the part is suitable as a direct replacement when sizes match.