Replacement 42T 64-Pitch Pinion for R/C Drivetrains - Yokomo YOKPG6442  [YOKPG6442]

Yokomo PG6442 - 64 Pitch 42 Teeth
Price:
£6.48
Brand:
Yokomo
Model:
YOKPG6442
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Service and Care for 64-Pitch Pinions

The Yokomo YOKPG6442 is a 64 pitch, 42-tooth pinion offered as a direct replacement for compatible R/C gear trains. It transfers motor output to the spur and helps establish the overall drive ratio when combined with the chosen spur gear.

Installation notes: check that the pinion suits your 64-pitch spur and that the motor shaft and pinion bore are compatible before installation. Begin with a conservative mesh, inspect for consistent contact across the tooth faces, then fine-tune lateral position. Hold the motor steady when tightening the set-screw(s) to avoid misalignment, and repeat a short run to confirm the mesh remains correct.

Tuning guidance: changing pinion tooth count shifts acceleration versus top speed. Treat the 42-tooth pinion as one tuning option and evaluate changes incrementally. After any swap, monitor for unusual noise, increased temperature, or visible tooth damage and make mesh or height adjustments as required. Routine upkeep includes removing grit from the gears and checking for burrs that can cause premature wear.
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.

Can a worn pinion damage the spur gear?

Yes, a pinion with nicks or worn teeth can accelerate wear on the spur. Inspect both gears regularly and replace any item showing significant damage to protect the rest of the drivetrain.

Any tips for securing the set-screw reliably?

Hold the motor firmly to prevent rotation while tightening the set-screw and avoid overtightening. If needed, use a small amount of appropriate thread locker sparingly and recheck the gear mesh after the first run.

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