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.
mil-i-24137 mil spec all material responses overall material document and classification, iron cast uns f33101 or iron cast uns f43020 or iron cast uns f43021 overall material