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.
2.560 inches nominal length, 0.062 inches nominal overall thickness, 1.500 inches nominal aperture diameter, flat w/aperture cross-sectional shape style, 4 bolt circle hole quantity