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.
0.5625 inches minimum and 0.5627 inches maximum aperture diameter, 0.820 inches nominal counterbore diameter, 0.010 inches minimum and 0.020 inches maximum counterbore depth, 2 bolt circle hole quantity, 0.070 inches nominal overall thickness