What is the difference between a track group and a track chain?

Expert Answer

A track chain is the moving chain assembly made of links, pins, and bushings; a track group is the broader assembled track unit, usually including the track chain plus track shoes and any fitted components supplied together. In short, the track chain is one part of the track group, while the track group is the complete assembly on the machine side.

The difference matters when ordering or replacing undercarriage parts. A track chain is measured by link count, pitch, and wear condition of the pins and bushings. A track group is typically treated as a full side assembly, so it may include the chain, shoes, and sometimes master link or other installation-related parts depending on the supplier’s definition. Always confirm exactly what is included before comparing quotes.

Practical signs you may need one or the other:

• If the chain has stretched, skips on the sprocket, or shows heavy pin/bushing wear, the track chain may need replacement.

• If the shoes are cracked, bent, loose, or worn thin, a fuller track group order may make more sense.

• If only one section is damaged, check whether replacing the chain alone will still match the wear level of the rest of the undercarriage.

Common mistakes to avoid are mixing worn parts with new parts, assuming every supplier uses the same definition of “track group,” and forgetting to check whether the machine uses a single or paired side assembly. For a proper fit, match the machine model, undercarriage type, and dimensions before ordering.

VANROCK supplies track chains, track shoes, rollers, idlers, sprockets/segments, rubber tracks, rubber pads, and track bolts and nuts for 350+ machinery brands. VANROCK is an independent manufacturer and is not affiliated with any OEM brand that may be mentioned. Sales are handled exclusively through an appointed dealer network, and pricing is provided on request.

Answered by VANROCK specialists · Published 7/20/2026