Product Description
Bushes are the wear interface between pin and link, and they set the pitch of the whole chain.
When to replace
Bush wear shows up as chain elongation and sprocket noise. Left too long it takes the sprocket with it, which turns a parts job into a major repair.
Ordering
Undercarriage parts are not universally interchangeable between machine classes. When ordering, send the machine class and, where possible, a photograph of the existing part and any casting marks on it. That is considerably more reliable than a part number alone, since numbering schemes differ between suppliers and change over time.
Why amphibious undercarriages wear faster
A dry-land undercarriage sheds abrasive material. A submerged one does not — silt stays in the running gear and works as a grinding paste. Operators moving from conventional machines are routinely surprised by the parts consumption. Planning for it, and holding the fast-moving items on site, costs less than the downtime does.