Hardened 7075 21T Pinion Gear for 48 Pitch - 3RAC-PG4821 by 3Racing [3RAC-PG4821]

3RACING 48 Pitch Pinion Gear 21T (7075 w/ Hard Coating) - 3RAC-PG4821

Price:

AUD$5.33

Brand:

3Racing

Model:

3RAC-PG4821

Condition:

Brand New

Quantity:

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Description
FAQ

Pro-Grade 21T Pinion: Tough and Accurate

Designed for hobbyists who push their rigs hard, the 3RAC-PG4821 uses 7075 aluminum with a hard coating to resist wear during heavy runs. The 21T tooth form supports stable drive input without unnecessary flex.

Performance and Compatibility

Suited to many 1/10 scale vehicles that require 48 pitch pinions, this part helps maintain efficient power transfer and dependable gear engagement under load.

Why Choose 7075 Aluminum?

7075 provides a high strength baseline so the pinion stays true under stress. The added hard coat reduces abrasive damage from debris and extends replacement intervals compared to untreated alloys.

Installation Tips

Set the gear mesh so the pinion and spur have proper clearance; tighten mounting hardware to spec and recheck after a short break-in run to ensure consistent performance.

Can this pinion handle higher torque motors?

The hard-coated 7075 construction improves resistance to wear under increased torque, but ensure your spur and drivetrain are also rated for higher loads to avoid related failures.

Any recommended break-in procedure for this gear?

Start with light runs to seat the teeth, then inspect mesh and fasteners. Gradually increase load to allow the hard coat and mating surfaces to bed in.