3RACING 48 Pitch 25T Pinion Gear Race Spec Hard Coating (7075) - 3RAC-PG4825  [3RAC-PG4825]

3RACING 48 Pitch Pinion Gear 25T (7075 w/ Hard Coating) - 3RAC-PG4825
Price:
USD$3.80
Brand:
3Racing
Model:
3RAC-PG4825
Condition:
Brand New
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Race oriented pinion for tuned drivetrains

The 3Racing 48 Pitch Pinion Gear 25T is manufactured from high strength 7075 aluminium and finished with a hard coating to preserve the tooth profile during intense running. It is aimed at drivers who demand consistent mesh and predictable gearing for tuning setups.

Material and surface treatment benefits

7075 aluminium gives a favourable strength to mass ratio for racing layouts, while the hard coating reduces abrasive wear on the gear face. Together they maintain tooth geometry and help retain gear ratios over extended use.

Setup and tuning considerations

This 25T pinion suits a range of 1/10 scale race cars where 48 pitch is specified. When adjusting gearing, consider motor kv, tyre diameter and track type to select the correct tooth count for the desired balance of acceleration and top speed.

How should I set gear mesh for high rpm motors?

Use a thin shim or paper method to achieve a snug but not tight mesh, then validate under low rpm to ensure no binding before full throttle testing.

Is this pinion suitable for aggressive gear changes during tuning?

Yes, the 7075 alloy with hard coating holds up well to frequent gear swaps, making it appropriate for iterative tuning where tooth count is changed often.

What checks should a racer perform after installation?

Confirm proper set screw torque, recheck mesh after a short run, and inspect the coating for any abnormal wear that might indicate misalignment or debris ingress.