Yokomo YOKBB850P Precision 5x8x2.5mm Bearing for R/C  [YOKBB850P]

Yokomo BB-850P - 5x8x2.5mm Super Precision Bearing
Price:
£11.54
Brand:
Yokomo
Model:
YOKBB850P
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Precision 5x8x2.5mm ball bearing for R/C

This Yokomo YOKBB850P 5x8x2.5mm Super Precision Bearing is a compact metal ball bearing intended for RC-scale rotating components. Its dimension set (5x8x2.5mm) matches common small shaft and hub fits used in electric touring, pan car, and micro-scale models where a low-profile precision bearing is required.

In practice this bearing serves as a drop-in option for shafts, idlers, and small gearbox outputs where consistent rolling performance reduces friction and heat. The neutral construction and tight tolerance help maintain predictable response under tuning changes to gearing and motor load.

Installation notes: press or gently tap the bearing into a matching bore using a sleeve that contacts the outer race only, avoid applying force to the inner race, and check axial play after seating. Regular light maintenance with appropriate bearing oil helps preserve smooth rotation in dustier outdoor use.

Specifications

  • Item: 5x8x2.5mm Super Precision Bearing
  • Material: Metal
  • Model Number: YOKBB850P
  • Compatibility: General R/C rotating shafts and small drivetrain assemblies
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.

Which shaft sizes and adapters are recommended?

The inner diameter is 5mm. Use precise 5mm shafts or adapters and verify concentricity to ensure the bearing operates without undue stress.

Should I expect noise from this bearing when new?

New precision bearings may have a faint sound until broken in. A light oiling and a short run at moderate speed will typically quiet any new-unit noise.

How do I prevent contamination in open-bearing setups?

Use dust shields or covers where possible and clean bearings regularly. For exposed applications consider sealed models or frequent relubrication.

Is this bearing a direct replacement for common small hubs?

It can be used as a direct replacement where the 5x8x2.5mm specification is listed. Confirm bore and shaft tolerances before committing to long-term installation.

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