3RACING 3RAC-SG4889/V2 89T Spur Gear - Competitive Setup Part  [3RAC-SG4889/V2]

3RACING 48 Pitch Spur Gear 89T Ver.2 - 3RAC-SG4889/V2
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG4889/V2
Condition:
Brand New
Write a review

Technical Spur Gear for Precise 48 Pitch Mesh

The 3RACING 48 Pitch Spur Gear 89T Ver.2 is engineered for racers and setup-focused hobbyists who require consistent tooth engagement and predictable power transfer. Its 48 pitch geometry facilitates fine tuning of pinion contact for improved drivetrain efficiency.

Tuning Benefits for Competitive Use

When used in high demand running the 89T spur helps reduce backlash and evens out drive impulses to the wheels, giving a cleaner throttle band for lap consistency. This makes gear selection and pinion choice more repeatable during setup changes.

Installation and Compatibility Details

The 3RACING Spur Gear 89T Ver.2 is compatible with a broad range of 1/10 scale race chassis. For best results check mesh with feeler or paper method, torque mounting screws to spec and verify endplay under load to avoid premature wear.

How should I set mesh for best lap times?

Aim for a tight but not binding mesh. Use a single sheet of paper between pinion and spur teeth, then tighten and remove paper. Recheck under load for any binding or play.

Which pinion teeth counts pair well with 89T for track balance?

Pinion choice depends on motor and track. For tighter tracks use a higher tooth pinion to lower acceleration, while open circuits favour lower tooth counts to raise top speed. Test and log results to find the best balance.

Any maintenance tips to extend service life?

Keep the gearbox free of grit, inspect teeth after impacts, and ensure bearings are smooth. Proper mesh and clean bearings are the main factors in prolonging spur life.