Chain and Sprocket Idlers are compact units made for various chain types, including single and extended pitch roller chain, as well as detachable link chain. They are normally mounted on standard 1/2", 5/8" or 3/4" bolts, and include accurately contoured hardened teeth to resist wear and damage to the chain. Designs range from 6 to 18 teeth in various configurations. Typical applications include gathering chains on corn heads and other harvesting equipment, exercise machines, and packaging machines.