Backing Ring Assembly for Railcar Axle Bearings

摘要

A backing ring assembly is for a railcar axle assembly including a shaft with a central axis and a bearing mounted on the shaft. An annular backing ring is disposeable upon the shaft between the bearing and a shaft enlarged section and has a central axis, an inner surface extending about the axis and defining a central bore for receiving the shaft and a retention surface facing away from the shaft enlarged section when the backing ring is disposed upon the shaft. A retainer includes an annular body, disposeable about the shaft enlarged section and having an inner surface sized to frictionally engage with the shaft enlarged section cylindrical surface, and at least one coupler connected with the annular body. The coupler(s) engage with the ring retention surface to releasably connect the retainer annular body with the backing ring to retain the ring at a fixed position on the shaft.

主权项

1. A backing ring assembly for a railcar axle assembly, the axle assembly including a shaft with a central axis and a bearing mounted on the shaft, the shaft having an enlarged section with a generally cylindrical outer circumferential surface and a curved fillet section connecting the enlarged section with a remainder of the shaft, the backing ring assembly comprising:
a generally annular backing ring disposeable upon the shaft between the bearing and the shaft enlarged section and having a central axis, an inner circumferential surface extending about the axis and defining a central bore for receiving a portion of the shaft and a retention surface facing generally away from the shaft enlarged section when the backing ring is disposed upon the shaft; and a retainer including a generally annular body disposeable about the shaft enlarged section, the annular body having an inner circumferential surface sized to frictionally engage with the shaft enlarged section cylindrical surface, and at least one coupler connected with the annular body and configured to engage with the backing ring retention surface to releasably connect the retainer annular body with the backing ring so as to retain the ring at a substantially fixed axial position on the shaft.