Bearing block for lightweight drawbar assembly

摘要

A bearing block for use in combination with a slackless drawbar coupler assembly for joining railway cars, wherein the bearing block is adapted for use in pivotally attaching a drawbar to a drawbar pivot pin and the drawbar is provided with a generally rectangular aperture through which such drawbar pivot pin is inserted, the bearing block comprising, a generally three-sided body having three generally rectangular side surfaces adapted to engage against the side surfaces of the generally rectangular aperture, and includes a fourth surface defining a concave cylindrical surface adapted to engage against a cylindrical side surface of the drawbar pivot pin, such that when properly inserted into the drawbar assembly, the drawbar will bias the cylindrical surface against the pivot pin.