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.
ground surface finish, 0.2190 inches nominal overall width, 0.39045 inches minimum and 0.39050 inches maximum overall outside diameter, abec no. 9p standard tolerance designation, 0.24980 inches minimum and 0.24985 inches maximum bore diameter