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.
angular load direction, 1.75 pounds minimum and 2.25 pounds maximum bearing preload rating, 5.0 degrees minimum and 25.0 degrees maximum contact angle, 0.234301 inches minimum and 0.234350 inches maximum bore diameter, 0.0006 inches minimum radial and 0.0008 inches maximum radial internal clearance