Couplings for 3/4" Shafts

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System of Measurement

Shaft Diameter

6.000 mm to 10.000 mm

6.000 mm to 12.000 mm

6.000 mm to 16.000 mm

6.000 mm to 20.000 mm

7 mm

8 mm

9 mm

9.500 mm to 25.000 mm

9.500 mm to 30.000 mm

9.500 mm to 35.000 mm

10 mm

11 mm

12 mm

12.500 mm to 40.000 mm

Shaft Type

Round with Support Rail

Construction

Material

Keyway Width

For Shaft Misalignment Type

Shaft Mount Type

Overall Length

For Rotary Motion

Keyway Depth

Length

Set Screw Material

Number of Set Screws Included

Maximum Rotation Speed

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

Not Rated

Shaft Coupling Flexibility

Component

Set Screw Drive Style

Hex

Clamping Screw Material

Stainless Steel

Steel

RoHS

Compliant

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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How can we improve?

449 Products

Flexible Shaft Couplings

Set Screw Flexible Shaft Couplings

A set screw bites into your shaft to hold the coupling in place

40 products

High-Torque Set Screw Flexible Shaft Couplings

Take on twice as much torque as standard split spiders while a set screw holds hubs in place

15 products

Metal-Detectable Flexible Shaft Couplings

Spider contains metal to trigger a detector if a piece breaks off, such as in food industry lines

9 products

High-Angular-Misalignment Flexible Shaft Couplings

Withstand higher angular misalignment than other three-piece couplings

4 products

Clamping High-Parallel-Misalignment Flexible Shaft Couplings

Grip misaligned shafts evenly for more holding power than set screw couplings

4 products

Shock-Absorbing Flexible Shaft Couplings

Flexible spring steel wraps around hub teeth to absorb sharp, momentary load increases

5 products

Set Screw High-Parallel-Misalignment Flexible Shaft Couplings

A set screw bites into misaligned shafts to hold the coupling in place

4 products

Flexible-Shaft Shear Couplings

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

2 products

Precision Flexible Shaft Couplings

Set Screw Vibration-Damping Precision Flexible Shaft Couplings

A set screw bites into the shaft to hold the couplings in place in precision motors and pumps

12 products

Clamping Vibration-Damping Precision Flexible Shaft Couplings

Grip shafts evenly in precision motor and pump applications

9 products

Clamping Precision Flexible Shaft Couplings

Grip shafts evenly for more holding power than set screw couplings without marring the shaft

15 products

Servomotor Precision Flexible Shaft Couplings

Handle high twisting forces as well as misalignment in high-performance servomotor applications

31 products

High-Speed Precision Flexible Shaft Couplings

Handle all types of misalignment and are good for encoder motion-control applications

12 products

High-Speed Servomotor Precision Flexible Shaft Couplings

Handle four times more speed than standard servomotor couplings

3 products

Electrically Isolating Servomotor Precision Flexible Shaft Couplings

An acetal plastic spacer insulates shaft components from stray electric current

1 product

Flexible Shaft Couplings for Continuous Motion

High-Speed Vibration-Damping Flexible Shaft Couplings

Gear-shaped for high-speed and high-torque applications

10 products

High-Torque Flexible Shaft Couplings

A rugged roller‑chain design for excellent torque and angular misalignment capacity

9 products

Lightweight Flexible Shaft Couplings

Nylon sleeves reduce weight and lower energy consumption

14 products

Noncontact Magnetic Shaft Couplings

Magnetic force compensates for misalignment by transferring torque without wear or contact

2 products

Ultra-High-Torque Flexible Shaft Couplings

The rigid steel gear design transmits more torque than other couplings

3 products

Other Products

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

41 products

Shaft Adapters

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

18 products

Shaft Collars

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

77 products

U-Joints

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

26 products

Machinable Shaft Ends

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

8 products

Bore Reducers

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

2 products

Torque Limiters

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

23 products

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

1 product

Clutches

Start and stop the transmission of power to machinery

11 products

Chain and Belt Torque Limiters

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

29 products

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

4 products

Rigid Shaft Coupling Covers

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

2 products