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.
flat w/aperture cross-sectional shape style, 6.499 inches minimum and 6.507 inches maximum aperture diameter, 90.0 degrees nominal countersink angle, 11 bolt circle hole quantity, 0.453 inches nominal countersink diameter