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, 3.290 inches minimum and 3.310 inches maximum aperture diameter, 0.490 inches minimum and 0.510 inches maximum counterbore depth, 5.986 inches minimum and 6.066 inches maximum outside diameter, 3.499 inches minimum and 3.502 inches maximum counterbore diameter