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, 3.151 inches nominal first counterbore diameter, 2.623 inches minimum and 2.625 inches maximum counterbore diameter, 2.000 inches nominal aperture diameter, 0.156 inches minimum and 0.719 inches maximum counterbore depth