The GPM MGG1230F differential gear set is a precision engineered carbon steel upgrade for ARRMA GRANITE GROM MEGA applications. The spiral cut ring gear is designed to smooth torque transition across the drivetrain, improving overall transmission behavior while maintaining part robustness.
Spiral cut teeth provide progressive engagement that reduces impact loads and audible noise compared with straight cut alternatives. This results in smoother torque transfer and lowers stress concentrations on gear flanks and associated bearings.
Increased tooth contact area afforded by the spiral profile spreads applied forces over a larger surface, lowering localized wear and improving mechanical efficiency for better throttle response under load.
Hardened and blackened surfaces increase the gears surface hardness and resistance to wear, helping the differential withstand repeated loads typical in hobby use and extending component service life.