Shaft Couplers | McMaster-Carr

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System of Measurement

Shaft Diameter

Shaft Type

Round with Support Rail

Construction

Material

Shaft Mount Type

Overall Length

For Shaft Misalignment Type

Keyway Width

For Rotary Motion

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

Keyway Depth

Clamping Screw Material

Stainless Steel

Steel

Maximum Rotation Speed

Set Screw Material

Number of Clamping Screws Included

Diameter

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

1C998

EAR99

Flexible Shaft Coupling Cut Style

Length

Number of Set Screws Included

Forward

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5,676 Products

Power Transmission

Shaft Couplings

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

2,110 products

Shaft Coupling Covers

Shield rigid shaft couplings from dirt, water, and lubricants to extend their life

13 products

Shaft Adapters

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

54 products

U-Joints

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

181 products

Machinable Shaft Ends

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

56 products

Shear Couplings

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

21 products

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

2,725 products

Torque Limiters

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

112 products

Clutches

Start and stop the transmission of power to machinery

58 products

Clutch/Brakes

Control when to transmit power with a clutch and when to hold a load in place with a brake

5 products

Fastening and Joining

Threaded Rod Collars

Hold and position parts on a threaded rod

76 products