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.
0.625 inches nominal counterbore depth, 4 bolt circle hole quantity, raised surface w/aperture cross-sectional shape style, 2.563 inches nominal aperture diameter, 4.875 inches nominal counterbore diameter