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.
30.0 rockwell c minimum and 34.0 rockwell c maximum hardness rating, engine,acft,turbo-prop fsc application data, flat w/aperture cross-sectional shape style, 3 bolt circle hole quantity, 3.300 inches nominal aperture diameter