3Racing 3RAC-SG4876 Competition Spur Gear 48P 76T  [3RAC-SG4876]

3RACING 48 Pitch Spur Gear 76T - 3RAC-SG4876
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG4876
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Race-Focused 48 Pitch Spur for Setup Precision

The 3Racing 48 Pitch Spur Gear 76T, model 3RAC-SG4876, is specified for tuners who need repeatable drivetrain characteristics. Its tooth profile is intended to produce uniform engagement, aiding in consistent power delivery lap after lap. The 76-tooth option supports fine tuning of overall ratio without altering motor timing or gearing complexity.

Technical Advantages for Racing Builds

  • Precision Design: 48 pitch geometry promotes accurate tooth contact to stabilise drive train feedback and reduce variable backlash.
  • Durability: Engineered for repeated race use while maintaining form under load.
  • Compatibility: Integrates with standard 48P pinions and gearsets to simplify ratio changes and trackside adjustments.
  • Performance Boost: Helps maintain consistent torque delivery for predictable corner exits and straight line speed.

What mesh clearance should I aim for with this spur?

Aim for a snug mesh that allows full tooth contact without binding; confirm even contact across the tooth face and recheck after a short run-in to settle components.

How does the 76T affect tuning compared to smaller spurs?

Increasing tooth count shifts the overall ratio toward higher top speed at the expense of some initial acceleration; use it alongside pinion changes to refine lap time balance.

What should I inspect between races?

Check the spur for any tooth deformation, verify motor mount stability and gearbox bearing play, and ensure the pinion remains free of burrs to protect consistent mesh.