What are the two main types of sprockets on a chain-driven machine?

Expert Answer

The two main types are industrial sprockets used with roller chain and drive sprockets used on tracked machines such as excavators and dozers. In practice, searchers often mean either chain sprockets for power transmission or undercarriage sprockets for track drive systems.

For chain systems, the key distinction is usually by hub style and strand count. Common hub styles include Type A, Type B, Type C, and offset hub designs, while strand count is described as simplex, duplex, or triplex. For tracked equipment, the main choice is the sprocket profile that matches the track chain pitch and the machine’s final drive arrangement.

The most important selection point is fitment: tooth pitch, chain pitch, tooth count, bore or bolt pattern, and wear pattern all have to match. If the sprocket does not match the chain correctly, you can get noise, accelerated wear, slipping, or premature chain damage. VANROCK supplies replacement sprockets and other undercarriage parts through its dealer network and quotes on request. If you are matching a Caterpillar, Komatsu, Hitachi, or other OEM machine, VANROCK is an independent manufacturer and is not affiliated with the OEM.

Answered by VANROCK specialists · Published 10/3/2026