3RACING 3RAC-PG4821 48 Pitch 21T Pinion - 7075 Hard Coated Aluminium  [3RAC-PG4821]

3RACING 48 Pitch Pinion Gear 21T (7075 w/ Hard Coating) - 3RAC-PG4821
Price:
AUD$5.70
Brand:
3Racing
Model:
3RAC-PG4821
Condition:
Brand New
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3RACING 21T Pinion Built for Endurance

The 3RACING 3RAC-PG4821 pinion is manufactured from 7075 aluminium with a hard coat finish to stand up to regular running and reduce tooth wear under load.

Drive Quality and Suitability

With a 48 pitch tooth profile, this pinion meshes cleanly with a range of 1/10 scale spur gears, providing a reliable interface for both touring and off road applications.

Why 7075 and a Hard Coat Matter

7075 provides high tensile strength while keeping weight down. The hard coat adds surface toughness, helping the gear retain accurate tooth geometry through extended use.

Practical Installation Notes

Ensure correct mesh by setting the pinion with a small gap that allows smooth rotation without binding. Inspect for burrs and tighten the set screw to the recommended torque.

Does the bore fit common motor shafts?

This pinion fits standard motor shaft sizes used in many 1/10 brushless setups; check your shaft diameter or use an adaptor sleeve if necessary.

Is specialised grease required for the mesh?

A light application of gear safe grease on the spur mesh is sufficient. Avoid heavy pastes that can attract grit and accelerate wear.

Can I use this pinion on brushless motors?

Yes, the 3RACING 3RAC-PG4821 is suitable for brushless setups as long as the pitch and shaft fit your motor and the power delivery is managed by proper gearing and ESC settings.

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