Motor Couplings | McMaster-Carr

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System of Measurement

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For Shaft Misalignment Type

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Keyway Width

Maximum Torque

Shaft Coupling Motion

Continuous

Forward/Reverse

Start/Stop

Keyway Depth

Shaft Coupling Flexibility

Set Screw Material

Diameter

Number of Set Screws Included

Clamping Screw Material

Stainless Steel

Steel

Number of Clamping Screws Included

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Compliant with Exemptions

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Export Control Classification Number (ECCN)

1C998

EAR99

DFARS Specialty Metals

Exempt

Set Screw Drive Style

Hex

Slotted

Flexible Shaft Coupling Cut Style

End Type

2,801 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

Shear Couplings

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

22 products

U-Joints

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

174 products

Torque Limiters

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

112 products

Clutch/Brakes

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

2 products