Designed for large belt and chain drives, these tensioners maintain correct drive tension for smooth operation, maximum power, and a long service life. They're spring loaded, which keeps constant tension on a belt or chain and automatically adjusts for changes in loads. An idler shaft (sold separately) is required.

For technical drawings and 3-D models, click on a part number.

Mount these tensioners directly onto your chain drive. They have adjustable straps that take up slack and apply constant tension. Because they engage with the side plates instead of the rollers, they increase the life of your roller chain.

UHMW tensioners are stronger and more durable than PTFE tensioners.

PTFE tensioners handle temperatures up to 450° F, more than twice as high as UHMW and titanium models.

Titanium tensioners stand up to harsh and dirty environments. They're stronger and more durable than plastic tensioners. And with a low coefficient of friction, they work with chain that has little or no lubrication.

For technical drawings and 3-D models, click on a part number.

Built-in springs put constant tension on roller chain to absorb and buffer shock, reduce vibration, and improve drive performance.

For technical drawings and 3-D models, click on a part number.

At less than 4" in height, these tensioners are good for use on low-clearance drives. Built-in springs put constant tension on roller chain to absorb and buffer shock, reduce vibration, and improve drive performance.

For technical drawings and 3-D models, click on a part number.

Able to fit in tight spots, these tensioners are less than 3" tall. Built-in springs put constant tension on roller chain to absorb and buffer shock, reduce vibration, and improve drive performance.

For technical drawings and 3-D models, click on a part number.