Serpent 120137 64P 50T Hard Aluminium Pinion Gear - Precision Drive  [SER120137]

Serpent SER120137 Motor-pinion Aluminium Hard 64P / 50T
Price:
£12.15
Brand:
Serpent
Model:
SER120137
Condition:
Brand New
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Precision Aluminium Pinion for Club Racing

The Serpent 120137 motor pinion gear is produced from hard aluminium to preserve tooth geometry under repeated use. Its 64 pitch and 50 teeth provide smooth power delivery and lower long-term wear, helping maintain predictable gear ratios during practice and race events.

After installation, verify gear mesh under static conditions and then on a short test run. Recheck tightness of the pinion grub screw and confirm there is no play on the motor shaft.
Hobbyists focused on consistent lap times or those upgrading worn plastic pinions will find the hard aluminium option helpful for improving repeatability and durability.
Keep debris out of the gear mesh, avoid excessive binding, and check alignment regularly. If you swap motors frequently, inspect the bore and set screw area for wear at service intervals.

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