Yokomo SG-6491 91T 64-Pitch Spur Gear Upgrade [SG-6491]

Yokomo SG-6491 Precision 64 Pitch Spur Gear 91T

Price:

NZD$5.66

Brand:

Yokomo

Model:

SG-6491

GTIN:

Not Available

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R/C General - Gears - Spur Gears

91-tooth 64-pitch spur for fine ratio control

This 91T spur is supplied as a precision option for 64-pitch RC geartrains. The exact tooth form is intended to reduce inefficient meshing and support steady power output in model car transmissions.

Always pair this spur with a 64-pitch pinion to maintain proper engagement. When installing, verify the pinion-to-spur mesh, set appropriate backlash, and check that contact is even across the tooth face to avoid accelerated wear.

In setup and tuning the 91-tooth count allows smaller incremental changes to final drive ratio compared with lower tooth counts, helping you dial acceleration and top-end response more precisely.

Remark :

Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Is a 64 pitch pinion required for correct meshing?

Yes. To achieve proper tooth engagement and predictable mesh you should use a pinion cut to the same 64 pitch specification.

What checks help prevent premature wear during fitting?

Confirm parallel shaft alignment, set moderate backlash, and inspect the tooth contact pattern under rotation to ensure even loading across the gear face.