Center plate structure for railway vehicle

In a method of resisting wear between a body center plate provided on a body bolster of a railway vehicle body and a bolster bowl provided on a truck bolster of a truck of said railway vehicle, said body center plate having a supported planar bottom surface adjoined by a cylindrical outside surface and said bolster bowl having a planar supporting surface adjoined by an upstanding peripheral flange which has a cylindrical inside surface which is adapted to receive said outside surface therewithin, said method comprising the step of disposing a wear resistant tubular liner against said cylindrical inside surface so that said liner is sandwiched between said cylindrical surfaces with said body center plate disposed within said bolster bowl, said tubular liner being comprised of an ultra high molecular weight polymeric material and having a top surface, the improvement in said method comprising the step of fixing a continuous metal ring to said flange against a top portion of said inside surface before said step of disposing said liner, said ring serving to engage said top surface of said tubular liner and prevent vertical cold flow of the polymeric material comprising same from between said cylindrical surfaces.