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