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.
5.0 pounds nominal bearing preload rating, angular load direction, 0.6250 inches nominal bore diameter, mis-30520,fscm 19135 mfr ref single material response lubrication material document and classification, 0.0003 inches minimum radial and 0.0008 inches maximum radial internal clearance