3Racing 3RAC-PG4841 48 Pitch 41T Race-Tuned Pinion  [3RAC-PG4841]

3RACING 48 Pitch Pinion Gear 41T (7075 w/ Hard Coating) - 3RAC-PG4841
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-PG4841
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Race-Oriented 48 Pitch Pinion for Tuning

The 3Racing 3RAC-PG4841 is a 48 pitch, 41 tooth pinion engineered for hobbyists focused on competitive setup work. Made from 7075 aluminium and finished with a hard coating, this pinion is intended to preserve precise tooth profiles during setup changes and sustained running.

Material and Wear Considerations

7075 aluminium provides a high strength-to-weight ratio while the hard coating reduces abrasive wear at the contact points. These attributes help keep the pinion's profile stable so that gear mesh remains repeatable across tuning iterations.

Tuning Notes for Competitive Use

Use the 3RAC-PG4841 when adjusting final drive ratios to dial in acceleration or top speed. Confirm shaft fit and set screw seating, then establish correct backlash and check for concentric runout to avoid premature wear during high stress runs.

What is the best procedure to confirm mesh repeatability?

Mark a reference tooth on both pinion and spur, set mesh under light load, run for a short session and recheck alignment. If the marks shift, reassess shaft seating and set screw torque.

Should I pair this pinion with steel or alloy spurs for racing?

For repetitive high load use, hardened steel spurs resist deformation and offer longer life; alloy spurs can be acceptable but may wear faster under aggressive power delivery.

Any recommended checks after a crash or heavy impact?

Inspect teeth for nicks or bent profiles, verify the pinion is still concentric on the shaft, and confirm no loosened fasteners. Replace if tooth geometry is compromised.