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.
12.0000 millimeters nominal overall width, 25.0000 millimeters nominal bore diameter, 47.0000 millimeters nominal overall outside diameter, medium bearing preload designation, angular load direction