3RACING 3RAC-PG6431 31T 64 Pitch Racing Pinion  [3RAC-PG6431]

3RACING 64 Pitch Pinion Gear 31T (7075 w/ Hard Coating) - 3RAC-PG6431
Price:
USD$3.80
Brand:
3Racing
Model:
3RAC-PG6431
Condition:
Brand New
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Technical overview of the 3RACING 31T pinion

The 3RACING 64 Pitch 31T Pinion Gear is specified for setups where consistent gear engagement and repeatable performance matter. Fabricated from 7075 aluminium with a thin hard coating, the component balances stiffness, low mass, and surface wear resistance for tuning-focused builds.

Material and surface treatment details

7075 aluminium offers a high strength to weight ratio that reduces rotating inertia. The applied hard coating increases tooth surface hardness to resist abrasion under repeated high RPM cycles, helping keep contact patterns stable.

Application in tuning and race setups

The 31T / 64 pitch configuration enables fine adjustment of gear ratios for precise speed versus acceleration trade offs. Use this pinion when calibrating gearing for specific track demands or motor characteristics.

Compatibility notes and fitment

Designed for 1/10 scale vehicles using 64 pitch systems, verify shaft bore and set screw alignment for secure mounting. Regular inspection of tooth contact and periodic mesh adjustments will maximise service life in competitive use.

What inspection points should a racer use after fitting this pinion?

Check bore concentricity to the motor shaft, verify set screw torque, and inspect tooth contact pattern on a static and dynamic spin to confirm even engagement.

Does the hard coating change recommended mesh settings?

The coating is thin and does not significantly alter mesh clearance, but always set mesh after fitting and run a short break in to stabilise contact before final tuning.

Which setup benefits most from this 31T pinion?

Lightweight, high RPM brushless setups that require fine ratio adjustments will see most benefit, as the 31T 64 pitch allows small incremental changes while keeping rotating mass low.