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.
0.500 inches nominal counterbore depth, 1.627 inches minimum and 1.628 inches maximum counterbore diameter, 4.000 inches nominal outside diameter, 4 bolt circle hole quantity, 1.437 inches nominal aperture diameter