Shaft Extensions | McMaster-Carr

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System of Measurement

Shaft Diameter

Shaft Type

Overall Length

Material

Construction

Shaft Mount Type

For Shaft Misalignment Type

Keyway Width

Length

Thread Size

Maximum Torque

Less than 10,000 in·lbf

10,000 in·lbf to 19,999 in·lbf

20,000 in·lbf to 29,999 in·lbf

30,000 in·lbf to 39,999 in·lbf

40,000 in·lbf or greater

Not Rated

Shaft Coupling Flexibility

For Rotary Motion

Shaft Coupling Connection

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Maximum Rotation Speed

Clamping Screw Material

Stainless Steel

Steel

Keyway Depth

Number of Clamping Screws Included

Clamping Screw Type

Cap

Socket Head

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

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How can we improve?

3,684 Products

Power Transmission

Shaft Couplings

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

2,110 products

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

54 products

Machinable Shaft Ends

Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts

56 products

Flexible Shafts

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

41 products

U-Joints

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

181 products

Shear Couplings

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

21 products

Connecting Rods

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

808 products

Torque Limiters

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

112 products

Fastening and Joining

Driver Shafts

Attach to a handle to create your own driver tool, or pair with socket wrenches and power tools

37 products

Standoffs

Separate, position, or connect components in assemblies

3 products