Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.
15.00 millimeters nominal bore diameter, unable to decode material, radial load direction, 42.00 millimeters nominal overall outside diameter, 13.00 millimeters nominal overall width