Ball Screw Actuators | McMaster-Carr

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Dynamic Thrust Load Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 9,999 lb.

10,000 lb. to 19,999 lb.

20,000 lb. or greater

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5 mm

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NEMA 14

NEMA 17

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340 Products

Selecting Compatible Lead Screws and Nuts

Ball Screws and Nuts

Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts.

Fast-Travel Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start.

Self-Stopping Ball Screws and Nuts

Keep your ball screw spinning without the ball nut damaging your system. When the ball nut reaches the stop pin at either end of the ball screw, it disengages and begins to idle.

Fast-Travel Corrosion-Resistant
Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start.

Corrosion-Resistant Ball Screws and Nuts

Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts.

Ball Screw Jacks

Low-friction ball bearings allow these screw jacks to use half the power required by an Acme screw jack to lift the same load. Typically used as actuators, they run at higher speeds than Acme screw jacks.

Mounting Plates for Ball Screw Jacks

Add a flat mounting surface to a ball screw jack to support loads.

Eyelet End Fittings for Ball Screw Jacks

Attach these fittings to the end of a ball screw jack to create pivoting connections with clevis rod ends and other linkages.

End Supports for Lead Screws and Ball Screws

A set of ball bearings reduces friction and secures the end of a ball or lead screw.

Metric End Supports for Lead
Screws and Ball Screws

A set of ball bearings reduces friction and secures the end of a metric ball or lead screw.

Roller Screws and Nuts

Precision ground to create more points of contact, these roller screws and nuts are highly accurate and handle much higher loads than ball screws and nuts of the same size.

Electric Actuators

Positioning Slides for Stepper Motors

Add your own stepper motor and controller to precisely move the ball screw and carriage smoothly at high speeds, like a head on an inkjet printer.

Dry-Running Positioning Slides for Stepper Motors

With PTFE sleeve bearings and a low-friction ball screw, these slides don’t require the mess and maintenance of lubrication but still give you precise positioning anywhere along the length of their stroke.

Electric Actuators with Automated Controls

Automate precise push and pull movements in clamping, sorting, and ejecting tasks.

Electric Positioning Slides with Automated Controls

With an included controller and an integrated stepper motor, these slides are a complete precision motion control system.

Miniature Electric Actuators with Automated Controls

Smaller than any other actuator in our offering, these actuators’ short stroke length makes them good for automating fine, precise adjustments.

Clean Room Electric Positioning Slides

Prevent dust from circulating while precisely positioning parts for drilling, fastening, assembly, and measuring.

Low-Temperature Electric Positioning Slides

Precisely position parts in conditions as cold as -90° F.

Ball Screw/Splines and Bearings

From one compact system, transmit linear or rotary motion or both at once (sometimes called spiral motion). Because of these different motions, these ball screw/splines and bearings create efficient, fluid movements in complex automated applications, such as pick-and-place robots.

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Selecting Compatible Lead Screws and Nuts