The 3RACING 6 x 12 x 4 mm double rubber seals bearings, supplied as a 10-piece pack, are intended for racers and tuners who prioritise consistent rolling resistance and contamination protection. The dual seals preserve internal lubrication and reduce variability lap to lap.
These sealed bearings are suitable for wheel hubs, gearbox outputs and ancillary rotating components where consistent spin and minimal maintenance are required. Their standard size simplifies replacement during setup changes or repair cycles.
Double sealing limits ingress of grit and moisture that can destabilise bearing performance during events. Regular inspection for heat and play, plus targeted relubrication after heavy sessions, will sustain predictable bearing behaviour for tuning purposes.