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.
steel comp 1020 overall material, raised surface w/ aperture cross-sectional shape style, 4.525 inches minimum and 4.530 inches maximum aperture diameter, qq-s-635 fed spec single material response overall material document and classification