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.
0.875 inches nominal length, 2 bolt circle hole quantity, 0.025 inches nominal overall thickness, steel overall material, 45.0 rockwell c minimum and 50.0 rockwell c maximum hardness rating