Set of 8 sealed rubber deep groove ball bearings 61904 6904-2RS - 20 mm ID 37 mm OD 9 mm thick for bicycles, scooters, rotating machinery

This bearing is suitable for bicycles, scooters, motors, power tools, transmissions, and other applications.
Model 61904 6904-2RS, inner diameter 20 mm, outer diameter 37 mm, thickness 9 mm. Please carefully check the size and model.
Rubber seals are provided on both sides of the bearing to ensure stable operation over extended periods in harsh environments, reducing lubricant loss and preventing external contaminants from entering.
The slim design allows for easy installation in space-constrained applications (such as bicycles, scooters, etc.) without affecting its load capacity and rotational performance.
With its ultra-high speed rating, it is suitable for high-speed rotating machinery and equipment, and can withstand high speeds and loads to ensure stable equipment operation.