Knowledge

Excavator Undercarriages Information

How Do You Know a Track Chain Is 100% Worn?
A track chain is truly 100% worn when internal pin and bushing wear has stretched pitch to the manufacturer’s replacement limit, not when the outside link surface only looks worn....
How Do You Measure Rubber Track Size?
Measure excavator rubber track size by checking three numbers: width, pitch, and links. Width is the track’s outside width, pitch is the center-to-center distance between drive lugs, and links are...
What Fits a Doosan DX140LC Best?
The Doosan DX140LC works best with aftermarket undercarriage parts built to match its long crawler configuration, including lower rollers, carrier rollers, idlers, sprockets, and track chains. For Ontario contractors, the...
How Do Polyurethane Dust Seals Extend Track Chain Life?
Polyurethane dust seals extend lubricated track chain life by blocking abrasive fines from entering the pin-and-bushing area, preserving internal grease, and reducing metal-to-metal wear. In heavy equipment, the right high-durometer...
How Does Induction Hardening Improve Track Pins?
A strong induction hardened track pin needs a hard exterior to resist bushing wear and a tough core to absorb shock loads. The best balance usually comes from a controlled...
How Should You Rebuild a Volvo EC210 Undercarriage?
A Volvo EC210 undercarriage rebuild should start with a complete wear map, not isolated part replacement. For high-hour machines, the best results come from changing the full system together: track...
Do You Need Full-Length Track Guards?
If your excavator works mostly on flat, cleaned ground, standard center track guide guards are usually enough to keep the chain aligned and reduce derailment risk. If you run in...
How Do Steel Prices Shape 2026 Fleet Purchases?
Steel and iron ore swings usually hit undercarriage pricing after a delay, so 2026 fleet buyers should expect today’s commodity moves to show up later in rollers, idlers, sprockets, and...
How Do Excavator Sprocket Hubs Handle Torque?
Excavator sprocket hubs manage high torsional loads by spreading drive forces through a reinforced hub, precision-bolted sprocket ring, and hardened tooth interface that works with the final drive output. In...
How Do KX040-4 Tracks Stay Reliable?
Kubota KX040-4 tracks stay reliable when the rubber track size matches the machine, tension is checked regularly, and the undercarriage is kept clean and properly inspected. For Ontario contractors, the...
How Do Polyurethane and Rubber Fills Compare?
Polyurethane and rubber fills both aim to make compact equipment tracks more flat-proof, but they do it in different ways. Polyurethane usually delivers higher cut resistance and longer wear life...
What Is the 5-Minute Daily Undercarriage Check?
A 5-minute daily undercarriage check is a fast walkaround that helps operators spot loose bolts, leaking seals, damaged track shoes, low tension, and packed debris before they become costly failures....
How Does a Carrier Roller Work?
A carrier roller supports the excavator track chain from above, keeps track tension stable, and reduces upper-run friction so the undercarriage runs cooler and wears more evenly. Inside the assembly,...