Arrowmax AM-348042 48P 42T 7075 Hard Pinion Gear - Precision Machined  [AM-348042]

Arrowmax AM-348042 Pinion Gear 48P 42T 7075 Hard
Price:
£4.71
Brand:
Arrowmax
Model:
AM-348042
Condition:
Brand New
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Precision Gearmaking for Better Drivetrain Control

The Arrowmax AM-348042 pinion is a precision component aimed at hobbyists and competitors looking for consistent gearing. Its 7075 aluminium construction aims to combine rigidity with a reduction in rotating weight.

The Practical Uses of 48P 42T

The 48P 42T arrangement is a practical choice when you want to tweak overall gearing without wholesale changes. It helps adjust acceleration and motor load to match track conditions and driving style.

Why 7075 Aluminium Matters

7075 aluminium offers a notable strength-to-weight ratio which helps keep tooth profiles stable under stress. That stability supports predictable gear mesh and can extend service intervals when maintained properly.

What should I check before buying this pinion?

Confirm your existing gear pitch and shaft bore dimensions. Also check whether your drive uses keyed shafts, D-shaped bores or grub screw mounting to ensure the pinion will fit correctly.

Is aluminium prone to faster wear than steel?

Aluminium is lighter but generally softer than steel, so inspect teeth more often. The 7075 alloy is harder than many aluminium grades, offering a good compromise between weight and durability.

How do I get the best life from this pinion?

Maintain correct gear mesh, keep the gear clean from grit, and check for burrs after heavy sessions. Replacing the pinion at the first sign of significant wear protects the rest of the drivetrain.

Can I use this pinion for competition and club runs?

Yes, it is suitable for serious hobby use and club racing provided you verify compatibility and maintain proper mesh and mounting. Its material and design support repeatable performance.

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