One-piece track pin

摘要

An endless track assembly for a track-type vehicle comprises an articulated chain for pivotally connecting each pair of adjacent track shoes together. Each articulated joint of the chain comprises a one-piece pin having a pair of laterally spaced pin portions and a bushing portion disposed intermediate the pin portions. A pair of first links are secured to the pin portions and a pair of second links are pivotally mounted on the pin portions. An annular seal is disposed between each adjacent pair of first and second links and a snap ring is secured to an outer end of each of the pin portions to prevent axial displacement of the links. A cavity is defined in the pin to communicate lubricant to the pivotal connections of the second links on the pin and end caps are secured on the ends of the pin to close the cavity and to cover the snap rings.