tensioner
/ˈtɛnʃənər/
noun
- A device used to apply or adjust tension in a belt, chain, cable, or similar system.
- The mechanic replaced the worn-out belt tensioner on the car engine.
- The conveyor belt system uses a spring-loaded tensioner to maintain proper tightness.
- A chain tensioner keeps the bicycle chain from slipping off the gears.
Synonyms