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.
crane,bridge end item identification, 40.0 millimeters nominal base length, 117.5 millimeters nominal center to center distance between mounting holes along width, 28.575 millimeters nominal bore diameter, 16.5 millimeters nominal base thickness