3RACING 48 Pitch 75T Spur Gear Ver.3 - 3RAC-SG4875/V3 Performance Part  [3RAC-SG4875/V3]

3RACING 48 Pitch Spur Gear 75T Ver.3 - 3RAC-SG4875/V3
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG4875/V3
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Race-Grade Fitment for 3RACING 3RAC-SG4875/V3

The 3RACING 3RAC-SG4875/V3 48 Pitch Spur Gear 75T is intended for competitive-minded users seeking reliable meshing and predictable drivetrain response. Its profile supports precise gear ratios and consistent tooth contact when set up correctly.

Setup and Tuning Considerations

For optimal performance, match this 48 pitch spur with a correctly specified pinion and adjust shims to achieve minimal backlash and uniform tooth contact. Proper setup reduces heat build-up and wear during extended runs.

Performance and Maintenance

Use this spur for tuning ratio changes or as a direct replacement during race prep; inspect for wear after high-load sessions and confirm grub screws and bearings remain secure to preserve consistent engagement.

Which pinion counts work well with a 75T spur for lap speed?

Select pinion tooth counts based on desired top speed versus acceleration; smaller pinions improve acceleration while larger counts raise top speed—verify motor and ESC limits when tuning.

How critical is backlash for race setups?

Minimal and consistent backlash is crucial for repeatable lap times; set backlash to the lowest value that does not cause binding across the temperature range of your runs.

Recommended inspection routine after practice sessions?

After intense sessions, check for tooth deformation, verify pinion set screws, and confirm bearing play is within spec to avoid unpredictable drivetrain behaviour.