Arrowmax AM-348021 48P 21T 7075 Metal Pinion Gear Performance Fit  [AM-348021]

Arrowmax AM-348021 Pinion Gear 48P 21T 7075 Hard
Price:
NZD$8.94
Brand:
Arrowmax
Model:
AM-348021
Condition:
Brand New
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Precision 7075 Pinion by Arrowmax AM-348021

The Arrowmax AM-348021 48P 21T pinion gear brings reliable metal strength to your RC build. Built from 7075 aluminium, it provides robust resistance to wear while keeping gear engagement smooth under load.

Engineered for Tight Gear Engagement

With precise tooth cutting, the 48P 21T pinion maintains correct meshing to help prevent uneven wear. This accuracy supports stable drivetrain operation and consistent handling on track or around the yard.

Broad Compatibility with Common RC Cars

The standard 48 pitch and 21-tooth count make this pinion a versatile choice for many electric and nitro RC cars. It is a straightforward swap when adjusting final drive ratios for acceleration or top speed.

Does this pinion fit brushless motors?

Yes, provided the motor shaft diameter and the 48 pitch spur gear are compatible. Confirm shaft size and set screw location before fitting.

How do I check proper gear mesh?

Install both gears and rotate them by hand to inspect tooth contact. Aim for a slight amount of backlash and even contact across the tooth face to avoid binding.

Is any break-in required for a new pinion?

A short running-in period under low load helps seat the teeth. After that, re-check mesh and tighten the set screw to the recommended torque for your motor shaft type.

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