Flexible Couplings | McMaster-Carr

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System of Measurement

Shaft Diameter

Shaft Type

Material

Overall Length

For Shaft Misalignment Type

Shaft Mount Type

Construction

Pipe Size

Fitting Type

For Rotary Motion

Keyway Width

Length

Maximum Torque

Less than 1,000 in·lbf

1,000 in·lbf to 9,999 in·lbf

10,000 in·lbf to 19,999 in·lbf

20,000 in·lbf to 29,999 in·lbf

30,000 in·lbf or greater

Not Rated

Flexible Shaft Coupling Cut Style

Parallel

Spiral

Shaft Coupling Flexibility

Shape

Maximum Rotation Speed

Keyway Depth

For Pipe OD

RoHS

Compliant with Exemptions

REACH

Set Screw Material

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

2,441 Products

Power Transmission

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

1,414 products

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

181 products

Flexible Shafts

Snake around curves and obstructions to transmit rotary motion along any path

41 products

Shear Couplings

Sever the connection between shafts when there's too much torque to protect parts from breaking

21 products

Torque Limiters

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

112 products

Fluid Handling

Pipe Straights

Join lengths of pipe to send contents in one direction

93 products

Pipe Elbows

Change the direction of flow when joining lengths of pipe

4 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

9 products

Pipe Tees

Split or merge liquid flow paths

4 products

Pipe Saddle Taps

Add branches, valves, and other equipment to your pipe line

4 products

Pipe Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

159 products

Building and Machinery Hardware

Mechanical Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

97 products