This MG528T/0.5M is a 28-tooth motor pinion cut for 48-pitch gear systems, using Module 0.5mm and a 5mm motor bore. It is intended for RC electric drive trains that run 48-pitch gearing.
Use this pinion to replace worn motor gears or to switch to a 28T ratio within a 48-pitch layout. The 45-steel construction provides a robust contact surface, but correct mesh and alignment are important to prevent premature wear on mating plastic or metal gears.
Installation notes: confirm the motor shaft bore is 5mm, set the axial position to obtain the correct gear mesh, secure the pinion fastener and check for endplay. After initial runs inspect tooth engagement and fastener tightness, then make small mesh adjustments as needed for smooth operation.
Tuning role: swapping to this 28T pinion changes the driven ratio in predictable steps, helping balance acceleration and top speed within the limits of your motor and ESC while maintaining 48-pitch compatibility.
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