3RACING 8x12x3.5mm Double Rubber Seals Bearings (10 pcs) - 3RB-MR128-2RS/10 Racing Replace Set  [3RB-MR128-2RS/10]

3RACING Double Rubber Seals Bearing 8 x 12 x 3.5 mm (10 pcs) - 3RB-MR128-2RS/10
Price:
USD$6.70
Brand:
3Racing
Model:
3RB-MR128-2RS/10
Condition:
Brand New
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Precision Bearings for Tuned Performance

The 3RACING Double Rubber Seals Bearing 8 x 12 x 3.5 mm (10 pcs) is engineered for racers who prioritise consistent rotation and low drag. The sealed construction helps retain lubricant and keep out debris, supporting stable rolling resistance under race conditions.

Application in Competitive Setups

These bearings suit setups that require dependable behaviour lap after lap. The dual rubber seals reduce contamination risk, helping maintain predictable cornering and drivetrain response. Use them in wheel hubs, idlers, and other rotating assemblies where 8 x 12 x 3.5 mm is specified.

Service and Swap Strategy

Carrying a 10 piece pack like the 3RACING 3RB-MR128-2RS/10 is practical for pit maintenance and quick part swaps between runs. Their standard sizing allows fast replacement without re-machining, aiding efficient race day servicing.

What bearing locations are highest priority for replacement before a race?

Focus on wheel hubs and any idler bearings that see high rpm, as smooth rotation there has the biggest effect on lap times.

Should sealed bearings be cleaned or swapped at every meeting?

Inspect and replace based on feel and noise; sealed bearings are service friendly but replacement is often faster and more reliable than full rebuilds trackside.

Are these bearings suitable for high speed pinion and spur use?

Yes, where the 8x12x3.5 mm size is used in gearbox or diff outputs, these sealed bearings offer stable performance under sustained RPM.