Tensioners are used to apply proper tensioning to any drive and conveying systems. Use them for applications where adjustment of pretension is required after final installation. We can provide you with the highest quality tensioners that perfectly match for our polyurethane timing belts. All stock tensioners are made of aluminum with a steel shaft in several widths both metric and English. Please contact BRECOflex Applications Engineering if you require any different material as we have the capability to custom manufacture tensioners to your specifications.