3RACING 3RAC-PG4840 48 Pitch 40T Pinion Gear - Race Setup  [3RAC-PG4840]

3RACING 48 Pitch Pinion Gear 40T (7075 w/ Hard Coating) - 3RAC-PG4840
Price:
USD$3.80
Brand:
3Racing
Model:
3RAC-PG4840
Condition:
Brand New
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Precision pinion for tuning and race setups

The 3Racing 48 Pitch Pinion Gear 40T is machined from 7075 aluminium and finished with a hard coat to increase surface hardness and wear resistance. Its accurate tooth profile supports repeatable gear mesh for serious setup work.

Engineering and track benefits

For tuners and racers, consistent tooth geometry helps maintain predictable torque transfer and reduces the need for frequent replacements. The hard-coated finish slows abrasive wear and maintains contact patterns under high load cycles.

Compatibility and installation guidelines

Intended for 1/10 scale platforms that use 48 pitch gearing, confirm bore size and tooth count compatibility. Set mesh using shim or motor mount adjustments and verify contact pattern on the spur gear to ensure optimal performance.

Check pinion and spur for uniform contact pattern, ensure grub screws are torqued to spec, and verify no play on the motor shaft to prevent slippage during heats.
Higher tooth counts favour top speed while fewer teeth give stronger acceleration. Choose tooth count based on track characteristics and motor power band to optimise lap consistency.
Inspect tooth integrity and alignment after impacts; even small bends or chips can alter contact patterns and degrade drivetrain efficiency, so replace if damage is present.