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.
4 bolt circle hole quantity, 1.687 inches nominal counterbore diameter, 0.093 inches nominal counterbore depth, 1.017 inches nominal aperture diameter, counterbored w/ aperture cross-sectional shape style