The Yokomo PG-4837A Precision Hard Coated Aluminium Pinion Gear is a 37-tooth component made for 48-pitch spur gears, offering steady engagement and less drivetrain noise when set up correctly.
Aluminium reduces rotating weight for crisper throttle response, while the hard coating improves resistance to tooth wear and surface fatigue compared with untreated aluminium parts.
Ensure the spur gear is 48-pitch and that the pinion is seated squarely on the motor shaft when fitting the Yokomo PG-4837A. Adjust mesh carefully and perform a short test run before final tightening.
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