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.
16.0 degrees minimum and 23.0 degrees maximum contact angle, 10.0 pounds minimum and 20.0 pounds maximum bearing preload rating, 1.0625 inches nominal bore diameter, angular load direction, 0.0005 inches minimum radial and 0.0008 inches maximum radial internal clearance