The undercarriage is one of the most expensive parts of your excavator, often making up 20–30% of total machine maintenance costs. Knowing when to replace undercarriage components like track rollers, idlers, sprockets, and carrier rollers can save you both money and downtime.
If your excavator is leaving uneven track marks or you hear unusual grinding noises, it’s a clear warning. Check for:
Excessive flat spots
Cracks or oil leakage
Uneven wear patterns
Ignoring these signs can lead to further damage on your tracks.
A worn sprocket usually shows pointed or hooked teeth. If you keep running it, it accelerates wear on the track links. That’s basically like throwing money away, right?
Look for:
Abnormal vibration
Unstable track tension
Cracks around the bushing
Idlers keep the track aligned, so when they go bad, the whole system is at risk.
Some people wait until the parts completely fail. But here’s the truth: that approach costs more in the long run. A broken roller or idler in the middle of a project can halt operations for days.
It’s better to schedule preventive replacement during regular maintenance cycles.
High-quality aftermarket parts from Chinese manufacturers now meet or even exceed OEM standards. With CNC machining, forging, quenching, and hardness testing, these parts provide excellent durability while keeping costs lower for B2B buyers.
So, how do you know if your excavator undercarriage needs replacement? Look for the signs, don’t delay repairs, and partner with a reliable supplier.
