What does an undercarriage include on a tracked machine?

Expert_Answer

The undercarriage is everything a tracked machine runs on — typically 15 to 25% of its purchase price and up to half of its lifetime maintenance cost. A complete undercarriage includes the track chains with pins and bushings, track shoes (or rubber tracks on smaller machines), drive sprockets, front idlers, bottom rollers that carry the machine's weight, carrier rollers that support the returning chain, the track adjusters and recoil springs that hold tension, and the track frame hardware including bolts, nuts and guards. All of these parts wear together as a system: a stretched chain chews sprocket teeth, seized rollers cut into links, and wrong tension accelerates everything. That's why inspections measure the whole system rather than single parts. VANROCK manufactures every undercarriage component — 44,000+ parts for 5,300+ machine models from 54 brands — with pricing quoted on request through its appointed dealer network.

Answered by VANROCK specialists · Published 7/25/2026