Yokomo YOKPG4828 - Precision Pinion Gear 48 Pitch 28T Ultra-Hard  [YOKPG4828]

Pinion gear for 48 pitch systems

This Yokomo YOKPG4828 pinion is a 48 pitch, 28-tooth scale pinion designed for RC model drivetrain use with an ultra-hard surface treatment noted in the product name. It is intended as a direct replacement or spare part where 48 pitch gearing is used, and its tooth count places it in the common range for tuning acceleration and top-speed balance in electric model cars.

Installation notes: verify correct mesh with the matching spur gear, ensure the motor shaft is centered and bearings rotate freely, set pinion position to avoid excessive preload on the motor bearings, and hand-rotate the drivetrain to confirm smooth engagement before powered testing. Use small iterative adjustments to find optimal backlash rather than heavy tightening.

Tuning role: swapping to a different tooth count on a 48 pitch pinion alters the overall gear ratio and affects throttle response and top speed, so this pinion is useful when fine-tuning gearing for track conditions or motor characteristics while keeping the drivetrain within 48-pitch specifications.