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.
3.248 inches minimum and 3.252 inches maximum aperture diameter, 3.736 inches minimum and 3.738 inches maximum outside raised surface diameter, slew unit assy; 60,000 lb crane end item identification, 6.250 inches nominal outside diameter, raised surface w/ aperture cross-sectional shape style