Arrowmax AM-348021 48P 21T 7075 Hard Anodised Pinion Gear  [AM-348021]

Arrowmax AM-348021 Pinion Gear 48P 21T 7075 Hard
Price:
AUD$7.95
Brand:
Arrowmax
Model:
AM-348021
Condition:
Brand New
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Robust 7075 Pinion from Arrowmax AM-348021

The Arrowmax AM-348021 48P 21T pinion gear offers a durable metal option for RC drivetrain upgrades. Made from 7075 aluminium, it stands up to repeated use while promoting smooth gear engagement.

Designed for Consistent Tooth Contact

Precision manufacturing of the 48P 21T teeth helps preserve correct meshing and reduces uneven wear on the spur gear. That translates to fewer drivetrain issues and steadier power transfer.

Suitable for Many RC Car Setups

Its 48 pitch and 21-tooth layout make the AM-348021 compatible with a broad range of RC cars. Use it when changing gear ratios for track tuning or everyday running to get predictable results.

Will this pinion work on vintage style motors?

If the motor uses a compatible 48 pitch spur and the shaft diameter matches the pinion bore, yes. Verify physical dimensions before fitting to older motors.

Can I lighten the pinion to reduce rotating mass?

7075 aluminium is already a strong, light option. Further machining is not recommended unless you have the tools and understand the impact on tooth strength and balance.

How do I prevent the set screw from coming loose?

Use the correct screw type for your motor shaft and apply a small amount of medium-strength threadlocker if appropriate. Check the set screw after the first few runs.

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