Rainbow Precision Products has a large selection of Miniature Bearings and Instrument Series Ball Bearings with many types available. Precision tolerances from ABEC-1 through ABEC-9 are generally available for most miniature applications. Bore sizes of miniature ball bearings start at 1 mm with an outside diameter a 3 mm.
If you don’t see a size listed please contact us we can most likely quote you. We are adding sizes to our website daily.