Tensioners | McMaster-Carr

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Compliant with Exemptions

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For Maximum Belt Width

Extended Length @ Maximum Load

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Compressed Length @ Maximum Load

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Tension Force

22,898 Products

Power Transmission

Chain and Belt Tensioners

Control tension on your roller chain or belt for smooth operation and a long service life

27 products

Chain Tensioners

Adjust tension on your roller chain to ensure smooth operation for a long service life

60 products

Chain and Belt Pulleys

Pair with a compatible belt to transfer motion from a rotating shaft

1,636 products

Timing Belts

Teeth prevent slippage while transmitting rotary power; often used to synchronize components

1,649 products

Flat Belts

Transmit high-speed rotary power; best for shafts that are aligned

120 products

Round Belts

Flexible to send rotary power between unparallel shafts

286 products

V-Belts

Wedge-shaped grooves adjust for misalignment while transferring power from a rotating shaft

1,413 products

Chain Pullers

Keep roller chain in place while you add or remove links

4 products

Chain and Belt Pulley Stock

Machine your own timing belt pulleys to fit an exact width and shaft diameter

17 products

Shafts

Transmit power, motion, and speed between machine components

3,149 products

Springs

Apply and absorb force with compression, die, extension, torsion, and disc springs

10,533 products

Constant-Force Retractors

Attach an object and the spring controls tension as the object is slowly pulled out and back

23 products

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

112 products

Brakes

Control how much and how quickly your drive system slows down

7 products

Motor Mounts

Adjust motor positions in belt-driven systems to increase efficiency and reduce wear on components

34 products

Electric Motors

Keep machinery and equipment moving with AC or DC power

12 products

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

332 products

Gear Stock

Machine your own gears to an exact face width and shaft diameter

18 products

Material Handling

Turnbuckles

Twist the body or end fittings to adjust the length and tension of attached rope and chain

778 products

Cable Pulling Clamps

Maintain tension until a line can be permanently anchored

11 products

Conveyor Belt Take-up Frames

Adjust the tension on conveyor belts by extending or retracting pulleys

28 products

Conveyor Belt Take-up Bearings

Use with take-up frames to adjust tension on conveyor belts

14 products

Conveyor Belt Idler Pulleys

Keep chain belts moving without sagging

8 products

Load Binders

Reduce slack in rope, straps, and chain to ensure a secure fit around loads

12 products

Ratchet Straps

Connect to anchor points and tighten incrementally to increase the tension, holding cargo in place

608 products

E-Track Straps

Add to E-Tracks to keep cargo from shifting inside vans and trailers; also known as logistic straps

16 products

L-Track Straps

Attach to L-Tracks and ratchet the buckle to tighten around cargo; also known as logistic straps

4 products

Strapping Tensioners

Draw strapping tightly around packages with the push of a lever to keep contents secure

19 products

Strapping Tensioners and Sealers

Tighten strapping around packages and seal it in place with a single tool

9 products

Strapping Sealers

Crimp clips onto strapping to hold it tight

23 products

Strapping

Secure pallet loads, crates, and packages for transit

133 products

Winches

Wind up and let out rope, chain, and webbing for lifting and towing

67 products

Ratchet Pullers

Ratcheting action creates the pulling power of a winch in a versatile, portable tool

31 products

Tool Balancers

Minimize user fatigue by suspending tools to offset their weight

37 products

Cinching Straps

Tightly grip large bundles of cargo and other materials to secure them in place

65 products

Cable Tie Tensioners

Tighten cable ties and trim the excess

21 products

Measuring and Inspecting

Belt Tension Gauges

Check belt tension to minimize vibration, noise, and slippage

14 products

Force Gauges

Test objects to see how much tension and compression force they can bear

109 products

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

25 products

Fastening and Joining

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

65 products

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

41 products

Fluid Handling

Hose Clamp Installation Tools

Tighten hose clamps over hose and fittings to secure them

17 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

1,125 products

Hose End Safety Straps

Wrap around the levers on cam-and-groove hose fittings to prevent accidental release and spills

3 products

Hose Identification Bands

Color code hose and tube lines to identify them at a glance

1 product

Containers, Storage, and Furniture

Strapping Dispensers

Keep strapping coils neat and ready to use

11 products