A comparatively flat rigid item, with or without a centrally located aperture, designed to hold an annular bearing or a sleeve bearing in a fitted inclosure. It must have drilled and/or tapped holes for mounting purposes. Excludes:end bell, electrical rotating equipment.
36.0 rockwell c minimum hardness rating, 1.990 inches minimum and 2.010 inches maximum aperture diameter, 4.026 inches minimum and 4.036 inches maximum outside diameter, round, unthreaded mounting hole type, steel comp e9310 overall material