Used to achieve optimum drive performance and ensure correct drive belt or chain tension is maintained. T-Max automatic tensioners eliminate the need for regular manual tensioning of drives. The risk of inadvertently over-tensioning drive components is avoided and overall drive operating efficiency is enhanced. T-Max Tensioners work by applying a preset load to the V-belt or chain which yields the proper tension for optimum efficiency and life. As the V-belt stretches or the chain wears, the spring-loaded tensioner automatically takes up the slack, saving energy, decreasing downtime, and reducing operating costs. Can be used on chain sizes up to ANSI #160 or BS/DIN #24B.