Patent ID: 6382742
Filing Date: 2002-05-07
Classification: B62D,E02F

Abstract:
A cartridge assembly for a track chain, comprising:a bushing having a passageway defined therethrough; track pin having a longitudinal axis, said track pin being located within said passageway so that a first end portion and a second end portion of said track pin extends outwardly from said passageway of said bushing, said track pin has a lubrication reservoir and lubrication channel defined therein, said lubrication channel being in fluid communication with said lubrication reservoir and an outer surface of said track pin; a first insert having a first bore defined therethrough, said first insert being positioned relative to said track pin such that said first end portion of said track pin is disposed within said first bore said first insert has a first annular seal groove defined therein such that said first annular seal groove surrounds said track pin; and a first collar having a first hole defined therein, said first collar being positioned relative to said track pin so that (i) said first end portion of said track pin is disposed within said first hole and (ii) said first insert is interposed between said first collar and said bushing, wherein (i) said first collar is fixed in relation to said track pin such that first collar is unable to rotate relative to said track pin and (ii) said first insert is able to rotate relative to said first collar, said bushing and said track pin around said longitudinal axis.