The rubber track drive (also called rubber band drive) is an alternative to conventional steel chain drive in construction equipment. Instead of individual steel links, a continuous rubber band with steel reinforcement surrounds the drive rollers and sprockets. This protects asphalt and paved surfaces and significantly reduces vibration and noise.
Rubber track drives are standard on mini excavators (under 8 tons) and are increasingly being used on mid-size excavators up to 15 tons. The rubber bands have steel cord reinforcement for tensile strength and transverse ribs for traction. Service life ranges from 2,000–4,000 operating hours depending on application — less than steel chains, which achieve 6,000+ hours.
Disadvantage: Rubber track drives are sensitive to sharp-edged stones and metal parts. In demolition, rock extraction, and on gravel surfaces, steel chains are better suited. Some manufacturers offer interchangeable systems where rubber pads are mounted on steel chains — a compromise between surface protection and durability.