Couplings for 3/4" Shafts | McMaster-Carr

Filter by

System of Measurement

Shaft Diameter

Shaft Type

Construction

Keyway Width

Material

For Shaft Misalignment Type

OD

Overall Length

Shaft Mount Type

Maximum Torque

Keyway Depth

Shaft Coupling Motion

Set Screw Material

Length

Shaft Coupling Flexibility

Width

Thread Size

Number of Set Screws Included

End Type

Clamping Screw Material

Number of Clamping Screws Included

ID

How can we improve?

438 Products

Power Transmission

Shaft Couplings

Shaft Couplings

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

Shaft Adapters

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

Machinable Shaft Ends

Machinable Shaft Ends

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

U-Joints

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

Shear Couplings

Shear Couplings

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

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

Shaft Collars

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

Torque Limiters

Torque Limiters

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

Clutches

Start and stop the transmission of power to machinery

Chain and Belt Torque Limiters

Chain and Belt Torque Limiters

Prevent chain or belt damage from overloading; loads above the set torque trigger a stop

Lead Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)