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.
0.250 inches nominal counterbore depth, 0.110 inches nominal aperture diameter, 3.300 inches nominal counterbore diameter, 3.300 inches nominal first raised surface outside diameter, 6 bolt circle hole quantity