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.
4.374 inches minimum and 4.376 inches maximum outside diameter, 0.062 inches nominal corner radius, 1.094 inches nominal aperture diameter, copper alloy 836 overall material, 4 bolt circle hole quantity