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.
0.890 inches minimum and 0.900 inches maximum overall thickness, 11.880 inches minimum and 11.890 inches maximum aperture diameter, 17 bolt circle hole quantity, 12.754 inches minimum and 12.755 inches maximum first raised surface outside diameter, 15.500 inches nominal outside diameter