3RACING 64 Pitch 21T Pinion Gear 3RAC-PG6421 - 7075 Hard Coated  [3RAC-PG6421]

3RACING 64 Pitch Pinion Gear 21T (7075 w/ Hard Coating) - 3RAC-PG6421
Price:
CAD$5.24
Brand:
3Racing
Model:
3RAC-PG6421
Condition:
Brand New
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Precision pinion upgrade for tighter drivetrain control

The 3Racing 64 Pitch Pinion Gear 21T brings a precise, lightweight option for builders aiming to refine their RC drivetrain. Made from durable 7075 aluminium and finished with a hard coating, this pinion balances strength with low mass to reduce rotating inertia while resisting wear.

Benefits of the 3Racing 21T pinion

Engineered for smooth engagement, the 64 pitch tooth form helps maintain clean power transfer under load. This 3Racing 21T pinion is suited to higher speed setups where reliable mesh and minimal backlash matter.

Fitting advice

Check gear mesh carefully when fitting the 3Racing 21T pinion to avoid premature wear. Correct spacing and a secure grub screw will keep the gear running quietly and efficiently in race or practice sessions.

Will this 21T pinion fit standard 32 pitch spurs?

This 64 pitch 21T pinion is intended for 64 pitch spurs. It will not mesh correctly with 32 pitch gears, so verify your spur gear pitch before installation.

How often should I check the mesh and coating?

Inspect the mesh and coating during routine maintenance and after heavy runs; look for burrs or loosening and reapply proper mesh if needed to preserve life.

Does the hard coating affect motor timing or efficiency?

The hard coating mainly improves wear resistance and does not change gear geometry, so motor timing and efficiency remain determined by gear ratio and motor setup.

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