The MG218T/0.5M motor pinion is a compact RC replacement crafted from 40Cr steel with a hardened black finish to improve wear resistance and maintain consistent gear engagement. It has 18 teeth at a 0.5mm module and a motor tooth diameter of 2.2mm, suitable for many small motors.
Fitment is straightforward: the pinion uses a round bore and is retained with two 3x3 set screws. Always confirm motor shaft diameter, module and tooth count to ensure compatibility prior to fitting.
This pinion is effective as a direct replacement or when upgrading to a hardened-steel gear for better longevity under regular driving and tuning adjustments. Fit with basic tools and tighten screws evenly to avoid misalignment.
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