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.
0.530 inches nominal countersink diameter, copper alloy 903 overall material, 90.0 degrees nominal countersink angle, 8 bolt circle hole quantity, qq-c-390,type 1 fed spec single material response overall material document and classification