Uni-directional lockout for railroad car wheelset differential

摘要

A railroad car wheelset has an axle with one wheel (14A) rigidly attached. This wheel is permitted to rotate by means of journal bearings either on the extreme ends of the axle or inboard of each wheel location. At the other wheel, the axle has smooth surface and a self-lubricating bearing (54) is provided as a part of a hub on the axle. The hub is integral with the axle or press fit thereon. The axle has a boss for preventing the independently rotating wheel from migrating laterally out of proper alignment. A self-lubricating thrust bearing (32) is located between this boss and the side of the wheel to eliminate any possible galling between the two moving surfaces.