Yokomo BM-4821A Hard Steel Pinion Gear DP48-21T - Heavy Duty Replacement  [BM-4821A]

Yokomo BM-4821A Hard Steel Pinion Gear DP48-21T
Price:
CAD$8.40
Brand:
Yokomo
Model:
BM-4821A
GTIN:
0639342205882
Condition:
Brand New
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Long Life Pinion Built for Club Racers

The Yokomo BM-4821A Hard Steel Pinion Gear DP48-21T is a dependable upgrade for those who want a rugged pinion that stands up to frequent running. Its hard steel build helps deliver steady drivetrain performance and reduces the need for frequent swaps.

48 Pitch With 21 Teeth Explained

This pinion uses a 48 pitch profile and 21 teeth, a common choice across many 1/10 scale RC platforms. That tooth count gives a sensible balance between top speed and low-end torque for both casual racing and everyday track sessions.

Advantages of Hard Steel Gearing

Hard steel provides strong wear resistance under repeated mesh and torque, lowering the chance of stripped teeth and keeping gear engagement reliable during longer runs.
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.

Will the DP48-21T work with my 1/10 scale electric car?

The 48 pitch and 21 teeth are widely used on 1/10 electrics, but you should check your pinion bore and motor shaft diameter as well as available space in the gearbox to confirm fit.

How should I inspect the pinion after runs?

Look for worn or nicked teeth and check the mesh marks on the spur gear after heavy sessions; replace the pinion if you see significant wear to avoid damaging the spur or diff.

Is hard steel suitable for brushless setups?

Hard steel pinions tolerate higher loads better than softer materials, but ensure your gear mesh is correct and monitor for heat and wear when using high-power brushless motors.

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