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.
0.2800 inches minimum and 0.3400 inches maximum counterbore depth, 2.874 inches minimum and 2.876 inches maximum aperture diameter, 3.2600 inches minimum and 3.3100 inches maximum counterbore diameter, 3 bolt circle hole quantity, 0.420 inches nominal body thickness