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.
0.2190 inches nominal overall width, abec no. 9p standard tolerance designation, 0.39040 inches minimum and 0.39045 inches maximum overall outside diameter, 0.24985 inches minimum and 0.24990 inches maximum bore diameter, ground surface finish