3RACING 3RAC-PG4821 21T 48 Pitch Pinion Gear - 7075 Hard Coated  [3RAC-PG4821]

3RACING 48 Pitch Pinion Gear 21T (7075 w/ Hard Coating) - 3RAC-PG4821
Price:
£2.84
Brand:
3Racing
Model:
3RAC-PG4821
Condition:
Brand New
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Robust 21T 48 Pitch Pinion from 3RACING

The 3RACING 3RAC-PG4821 is a hardened 7075 aluminium pinion finished with a protective hard coat to resist abrasion and retain tooth accuracy during sustained use.

Performance and Fitment

Engineered for clean engagement with 48 pitch spur gears, this pinion gives reliable torque transfer and is compatible with many 1/10 scale chassis layouts for simple upgrades.

Material Strength and Coating

7075 aluminium combines high strength with low mass, and the hard coat improves surface durability so the gear maintains performance even after repeated runs.

Installation and Care

Position the pinion so the gear mesh is even across the teeth and recheck the alignment after initial break in. Keep the gear area free of debris and inspect for wear periodically.

What vehicles typically use a 48 pitch pinion?

Many 1/10 scale race and hobby cars use 48 pitch gears. Confirm your gearbox specifications before fitting the 3RACING 3RAC-PG4821 to ensure correct mesh and spacing.

How do I check for pinion wear?

Look for rounded or chipped tooth edges, increased backlash, or noisy engagement. Replace the pinion if tooth profiles are degraded to avoid damaging the spur gear.

Is the hard coat suitable for wet conditions?

The hard coat improves wear resistance but does not make the pinion corrosion proof. Rinse and dry components after wet runs and apply corrosion protection to exposed hardware as needed.

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