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.
3.875 inches nominal first bolt circle diameter, raised surface w/ aperture cross-sectional shape style, 2.515 inches minimum and 2.525 inches maximum aperture diameter, 4.750 inches nominal outside diameter, 4 first bolt circle hole quantity