A single or multiple piece item without ball, plain or roller bearing(s). It is designed to meet various or specific conditions of mounting. For items with bearings, see bearing unit, ball; bearing unit, plain; and bearing unit, roller.
16.5 millimeters nominal base thickness, 40.0 millimeters nominal base length, 117.5 millimeters nominal center to center distance between mounting holes along width, crane,bridge end item identification, 28.575 millimeters nominal bore diameter