Patent ID: 6739680
Filing Date: 2004-05-25
Classification: B62D

Abstract:
A cartridge assembly for a track chain, comprising:a track pin defining a longitudinal axis and having a bore positioned therethrough; a bushing having a pair of end faces and a passage defined therethrough and being rotatably positioned about said track pin; bearing members having a first end portion, a second end portion and a bore defined therethrough, said bearing members positioned about said track pin so that the second end portion of each of said bearing members being adjacent said bushing; collars having a first end portion, a second end portion and a bore defined therethrough, said collars being positioned about said track pin so that the second end portion of each of said collars being adjacent the first end portion of each of said bearing members; a first seal arrangement positioned in at least one said pair of end faces of said bushing and said second end portion of each of said bearing members; and a second seal arrangement positioned in at least one of said first end portion of each of said bearing members and said second end portion of each of said collars.