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.
0.9250 inches minimum and 0.9400 inches maximum overall thickness, 3.1300 inches nominal aperture diameter, 7.5000 inches nominal outside diameter, aluminum alloy 6061 overall material, round style designator