What parts make up an excavator undercarriage?

Expert_Answer

An excavator undercarriage is mainly made up of the track chain, track shoes, drive sprocket, idler, carrier rollers, and track rollers. The track chain and shoes form the moving track assembly that supports the machine and distributes weight. The sprocket drives the chain, while the front idler keeps tension and guides track alignment. Carrier rollers support the upper track run, and track rollers carry the machine load along the lower track run. Depending on the machine, the undercarriage may also include recoil springs, tension adjusters, seals, and related hardware. These parts wear together, so checking them as a system helps prevent uneven wear and downtime. VANROCK supplies these undercarriage parts for 54+ machinery brands, with quotes provided.

Answered by VANROCK specialists · Published 7/20/2026