3RACING 3RB-MR85-2RS/2 Double Rubber Sealed Bearings 5x8x2.5mm Twin Pack  [3RB-MR85-2RS/2]

3RACING Double Rubber Seals Bearing 5 x 8 x 2.5 mm (2 pcs) - 3RB-MR85-2RS/2
Price:
£1.20
Brand:
3Racing
Model:
3RB-MR85-2RS/2
Condition:
Brand New
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Restore Smooth Motion with 3RACING 3RB-MR85-2RS/2

These 5x8x2.5mm double rubber sealed bearings from 3RACING are sold in pairs and are aimed at improving rotational smoothness in compact assemblies. The sealed design reduces the chance of grit impairing bearing action over time.

Robust Seals for Everyday Running

The double rubber seals provide effective defence against dirt and water ingress, which keeps the internal races and balls cleaner and slows wear. This makes them suitable for regular club running and general hobby use.

Versatile Use Across Small RC Components

Designed for locations calling for 5x8x2.5mm bearings, these sealed units are a straightforward option for replacing worn parts in hubs, pulleys and linkages to regain smooth, predictable control.

Will these bearings fit both front and rear hubs?

They will fit any hub or assembly specified for a 5x8x2.5mm bearing; confirm the bore and shaft sizes before swapping bearings between front and rear assemblies.

Can I use these bearings for vintage models?

If the original parts call for a 5x8x2.5mm bearing, these sealed units are a suitable modern replacement to improve reliability over older open bearings.

How should I remove a seized bearing?

Use a proper bearing puller or gently heat the housing to ease removal; avoid excessive force that could damage the hub or surrounding parts.

Are sealed bearings compatible with oil-based lubricants?

Sealed bearings are pre-lubricated during manufacture; adding external oil has limited effect due to the seals, so replacement is often the preferred option when lubrication is needed.

What signs indicate bearing contamination?

Listen for roughness or grinding, and check for play or heat under load. Any of these signs suggests the bearing should be cleaned or replaced to avoid secondary damage.

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