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.
4.500 inches nominal aperture diameter, raised surface w/aperture cross-sectional shape style, 6.100 inches minimum and 6.101 inches maximum counterbore diameter, 3.484 inches minimum and 3.488 inches maximum counterbore depth, 11 bolt circle hole quantity