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.
0.0005 inches minimum radial and 0.0011 inches maximum radial internal clearance, light bearing preload designation, 5.0 pounds minimum and 10.0 pounds maximum bearing preload rating, 1.0625 inches nominal bore diameter, 13.0 degrees minimum and 23.0 degrees maximum contact angle