Abstract: A railway truck side bearing with multi-purpose mounting points for securing the bearing cage to a railway truck bolster, such that one of the mounting points can serve a dual function of locating a resiliently deformable bearing element in the bearing cage and permitting positioning of a rigid bearing element within the bearing cage midway between the mounting points, which may also correspond to the bolster centerline.

Abstract: A railway truck side bearing with multi-purpose mounting points for securing the bearing cage with respect to a railway truck bolster.

Abstract: A side bearing for a railway car wherein spaced, elongated, resilient elastomeric elements bias a unitary friction generating element of the side bearing in operative position, the friction generating element being a separate member which is maintained in frictional engagement with a car body wear plate to provide improvements in the magnitude and uniformity of frictional energy dissipation and to provide, in cooperation with the elastomeric elements, improved bearing performance through the deformation of the elastomeric elements under initial loading and under operating load conditions.