3Racing 3RAC-SG6490 64 Pitch 90T Racing Spur  [3RAC-SG6490]

3RACING 64 Pitch Spur Gear 90T - 3RAC-SG6490
Price:
AUD$6.60
Brand:
3Racing
Model:
3RAC-SG6490
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Improve gearing precision with 3Racing 3RAC-SG6490

The 3Racing 3RAC-SG6490 64 pitch 90T spur gear is aimed at hobbyists who want tighter gear mesh and steadier power transfer. Its profile helps cut down on lash and gearbox chatter when set up correctly.

Reliable torque transfer and compatibility

The large 90-tooth configuration spreads load to reduce concentrated wear, and it is compatible with many common gear trains for easy ratio changes and tuning experiments.

Engineered for regular competition

Produced with careful tolerances, this spur gear stands up to repeated track use while keeping engagement consistent, which helps maintain lap time reliability.

What mesh tolerance should I set?

Aim for a small clearance that avoids binding while minimising play; use shims or a thin spacer to fine tune the mesh for quiet operation.

Will this gear reduce drivetrain noise?

When paired with a matching pinion and correct mesh, a 64 pitch 90T spur will typically run quieter due to smoother tooth engagement.

Is installation straightforward for beginners?

Basic installation is simple, but checking mesh and secure mounting is important; if unsure, consult a local club builder or manual for step by step guidance.

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