| 摘要 |
<p>A WEARPLATE FOR A COUPLER SHANK PINHOLE A coupler having a coupler head with coupling means and a shank which extends from the coupler head and terminates at a butt end adjacent which a pinhole is formed for receiving a pivot pin that is used to pivotally mount the coupler on a railroad car, mine car, etc. A semi-cylindrical recess is formed in the backside of the pinhole closest the butt end of the shank for receiving a matingly configured wearplate that is held captive in the recess between the pivot pin and adjacent butt end of the shank. The wearplate is non-metallic, being composed of an ultra high molecular weight polymer.</p> |
