48 Pitch 21T Pinion Replacement, 7075 Hard Coat - 3RAC-PG4821 by 3Racing  [3RAC-PG4821]

3RACING 48 Pitch Pinion Gear 21T (7075 w/ Hard Coating) - 3RAC-PG4821
Price:
USD$3.80
Brand:
3Racing
Model:
3RAC-PG4821
Condition:
Brand New
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Durable 21T Pinion for Consistent Drive

The 3RAC-PG4821 is a 21-tooth 48 pitch pinion made from high-grade 7075 aluminum with a protective hard coating. It is intended to improve wear resistance and maintain reliable gear engagement for 1/10 scale applications.

Performance and Compatibility

Offering steady power transfer and accurate meshing, this pinion fits many 48 pitch 1/10 setups when matched to the correct bore and shaft type.

Why Choose 7075 Aluminum?

7075 gives a strong, dimensionally stable base for the pinion while keeping weight conservative. The hard coating helps guard against abrasion and prolongs operational life.

Installation Tips

Ensure correct mesh and secure fastening during installation. Regular checks and light maintenance will help the part deliver consistent performance over time.

What checks should I do before installing this pinion?

Verify tooth pitch, bore diameter and shaft fit. Confirm the gear mesh on a test fit before tightening set screws to avoid misalignment.

Can the pinion be used with different spur sizes to change ratio?

Yes, changing spur tooth count alters overall ratio; ensure the new spur is also 48 pitch and that mesh and motor load remain within safe limits.