3RACING 3RB-MR84-2RS/2 Double Rubber Sealed Bearings 4x8x3mm Service Pair  [3RB-MR84-2RS/2]

Service friendly sealed bearings

For regular servicing or replacing tired bearings, the 3RACING Double Rubber Seals Bearing in 4 x 8 x 3 mm size offers a simple way to restore smooth motion. The pair format makes it easy to swap both sides of a hub or shaft at once for balanced performance.

Sealing advantages for varied conditions

The double rubber seals reduce ingress of dust and moisture, cutting down on the cleaning you need to do after wet or dirty runs. That makes them a sensible choice for club days where surfaces can change during a session.

Fitting guidance for long life

Ensure the bearing bore is clean and true before pressing bearings in. Use a soft driver against the outer race and avoid direct impact on the seal to prevent tears. Check periodically for noise and replace when bearings show signs of wear.