SKF 608-2RSH/C3 Deep Groove Ball Bearing - 8mm ID, 22mm OD, 7mm Width - Double Sealed, C3 Clearance - Radial Bearing for Skateboards, Electric Motors, and Industrial Machinery

I had to replace a set of motor bearings on my IQAir after 10 years. Tried ceramic TRB RC 608 bearings, way too noisy at all speeds. Tried some sealed stainless ones (uxcell S608-2RS), better but still has a low pitch whine that is too annoying. These have absolutely no bearing noise and the fan is almost silent at the lower speeds. Save your time and use these in any motor or high speed application.