3RACING 3RAC-PG4847 Competition Grade 48 Pitch 47T Pinion  [3RAC-PG4847]

3RACING 48 Pitch Pinion Gear 47T (7075 w/ Hard Coating) - 3RAC-PG4847
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-PG4847
Condition:
Brand New
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Race oriented 47T pinion for dialling final drive

The 3RACING 48 Pitch 47T Pinion Gear is prepared for setup work where predictable ratios matter. Forged from 7075 aluminium and finished with a hard coating, it aims to maintain tooth geometry and consistent mesh during tuning and testing cycles.

Material choice and coating for sustained performance

7075 aluminium offers a high strength to weight ratio that keeps rotational mass low while resisting deformation. The hard coated surface improves abrasion resistance, which helps preserve gear geometry under repeated stress and high rpm applications.

Application notes for competitive setups

The 47T tooth count gives a mid-range gearing option suitable for tuning acceleration versus top speed. Check shaft bore and set precise mesh with shims or a feeler method to optimise load distribution and minimise backlash.

What is the recommended mesh procedure for race tuning?

Use a feeler or paper method to set initial mesh, then fine tune under progressive load and secure the pinion grub screw with thread locker if needed for high stress events.

Does the hard coat change gear backlash requirements?

The coating slightly alters surface finish but does not require different backlash settings. Aim for minimal, even contact across teeth to spread load.

Are there specific motor pairings to avoid excessive wear?

High tooth load from oversized motors or mismatched spur ratios increases wear; pair the pinion with a balanced motor and appropriate spur gear to control torque at the mesh.