Patent ID: 8070241

Claim:
An endless track chain for use with a track-type vehicle, the track-type vehicle comprising a drive wheel comprising a first sprocket and a second sprocket, the endless track chain comprising: a first link set and a second link set, the first link set comprising a first link and a second link, the second link set comprising a third link and a fourth link, and a joint for relative rotation between the first link set and the second link set, the joint comprising: a pin, a bushing journalled on the pin for relative rotation between the bushing and the pin and fixed to the first and second links, a first collar and a second collar, the first and second collars positioned respectively axially outboard of the bushing, journalled on the pin for relative rotation between the first and second collars and the pin, and fixed respectively to the third and fourth links, and a first drive cap and a second drive cap, the first and second drive caps positioned respectively axially outboard of the first and second collars and fixed to the pin, the first and second drive caps configured to engage respectively the first and second sprockets.