3RACING 3RB-MR84-2RS/2 Double Rubber Sealed Bearings 4x8x3mm Maintenance Pack (2 pcs)  [3RB-MR84-2RS/2]

Smooth, reliable bearing choice

Maintaining and upgrading your radio controlled vehicles means picking parts that last. The 3RACING Double Rubber Seals Bearing in 4 x 8 x 3 mm format delivers steady rotation and low friction for small shafts and wheel hubs. Supplied as a pair, these bearings balance serviceability with everyday durability for hobby mechanics.

Benefits of the sealed rubber design

Rubber sealed bearings help block grit and water from entering the raceways. The double rubber seals give added protection that reduces cleaning frequency and helps bearings run longer between services. This is useful if you often drive on dusty tracks or damp surfaces, where contamination is a common issue.

Fitting and care tips

Fit the bearings clean and straight to avoid damaging the seals. Check they are free of grit before pressing into place and use a soft, even press rather than hammering. Periodic inspection and light re-lubrication will keep them turning smoothly without compromising the seals.