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.
7.5 pounds nominal bearing preload rating, angular load direction, braycote,3l-38-rp,fscm 98308 mfr ref single material response lubrication material document and classification, 0.3748 inches minimum and 0.3750 inches maximum bore diameter, 0.0003 inches minimum radial and 0.0008 inches maximum radial internal clearance