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.
45.00 millimeters nominal bore diameter, 0.0012 inches minimum radial and 0.0020 inches maximum radial internal clearance, contact bearing seal type, 25.0 pounds nominal bearing preload rating, angular load direction