Ball Screw Actuator

A reliable source for Linear Actuator information and leading Linear Actuator Companies & Manufacturers.

Tending to be very rigid, ball screw actuators are also highly accurate and precise due to tight manufacturing tolerances as well as the lack of compressibility in the ball bearings. Read More…

Ball Screw Actuator Ball screw actuators, also called drive screws, are linear actuators that produce mechanical linear motion by converting rotary motion into mechanical energy through the use of ball screw and ball nut combinations.

Leading Manufacturers

Bethel, CT  |  203-778-2727

Del-Tron Precision, Inc. was founded in order to serve the needs of automated equipment manufacturers for innovative, high quality and reasonably priced anti-friction linear bearings and associated products such as valve actuators. Del-Tron has maintained the same high level of service by continually developing new products that deliver important advantages to its customers.

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Del-Tron Precision, Inc. $$$

Pittsburg, CA  |  888-580-8272

We are a qualified small business just waiting to have the privilege of fulfilling your ball screw actuator needs. We are totally in house capable in order to be able to fill any order that we receive without the extra hassle of having to send it to other locations. We know that your business relies on getting your product quickly and efficiently this is why we work hard to ensure we cause no downtime for your business. Contact us today to learn more!

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Bishop-Wisecarver $$$

Battle Creek, MI  |  800-537-9940

Utilized in a variety of applications and industries, the products designed and manufactured at Burr Engineering & Development include ball screw actuators and similar mechanisms. Standard models or customized designs are available to ensure that wherever the part will be, whether in construction equipment, a platform table or a satellite dish positioner, it will be a perfect fit.

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Burr Engineering & Development Company $$$

Cutchogue, NY  |  888-321-9178

Ultra Motion designs and manufactures precision electromechanical actuators, and related products, for multiple industries including aerospace, medical, industrial automation, defense, research, and more. Our areas of expertise include extreme power density, fully integrated closed loop servo actuators, multi-turn absolute position sensors, and challenging environments like space, deep sea, vacuum, etc.

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Ultra Motion $$$

Bethel, CT  |  800-447-2042

Tusk Direct’s specialty is linear motion components. We offer slides, bearings, lubricants and assemblies compatible with pneumatic or electric actuators and actuator systems. Our actuator parts and accessories comply with rigorous standards, and are satisfaction guaranteed and shipped promptly. Get in touch with our customer service representatives to see what we may do for you! Let us work for you!

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Tusk Direct, Inc. $$$

Saanichton. BC  |  206-347-9684

Our linear actuators are at the top of the market and on the leading edge of innovation. If you need a new design or modification to an existing design, we are the true professionals that you need to call. We have the capability to meet all of your specified requirements. Come and visit our website to learn more about what we do or contact one of our representatives to get started planning your next project.

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Actuonix Motion Devices $$$

Lansdale, PA  |  800-313-4753

SKF Motion Technologies is a leading global supplier of quality linear motion components. Our wide range of linear guides consist of linear ball bearings and profile rail guides with ball or roller recirculation and nearly unlimited axial motion. In addition, precision rail guides with constant rolling element contact, feature highest precision. Call us today for all of your linear motion needs.

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Ewellix $$$
placeholder image Del-Tron Precision, Inc. Bishop-Wisecarver Burr Engineering & Development Company Ultra Motion Tusk Direct, Inc. Actuonix Motion Devices Ewellix

Highly durable, ball screw actuators can exceed lifetimes of 5,000 km if operated at low loads and speeds; higher loads and speeds lead to typical lifetimes of 3,000 km.

A ball screw actuator's speed is determined by the ball screw's pitch. The screw lead is the screw pitch multiplied by the number of screw threads and determines the linear travel of the ball nut per rotation of the screw. Ball screw actuators with a higher screw pitch provide higher axial movement to a nut faster per a given screw rpm, while those with a lower screw lead produce greater linear thrust.

Tusk Linear Actuator Tusk Linear Actuator - Tusk Direct, Inc.

Ballscrew actuators serve a multitude of industries including automotive, aerospace, medical, biotechnology, automation, material handling, semiconductor, pharmaceuticals, food, packaging, and electronics. Applications that ball screw actuators are utilized in include large-scale automation processes, solar tracking, ventilation, micro-positioning, commercial satellite tracking, laser machining, and conveyor belting.

Ball screw linear actuators consist of a ball screw, a train of recirculating ball bearings, a ball nut, and a cover tube or housing that attaches to the object, or load, requiring motion. The load is typically attached to the end of the ball screw and unsupported by other means.

The ball bearings travel in opposed, hardened rod tracks or grooves that are cut out inside of the axially translating ball nut at a particular helix angle. The ball bearings are compressed when circulating in the track and unloaded in the return system: the circulation is caused by either an internal reversing system or a series of external return tubes. Housed in the ball nut, the ball bearings travel along a ball screw rod.

The ball screw rotates in and out of a housing, which is typically constructed from stainless steel, aluminum, plastic, or steel. The rotation provides linear motion to the object and can be caused by a synchronous timing belt drive, direct drive, or worm gear drive.

In addition, ball screw actuators length is determined by the critical speed of the screw. The critical speed of the screw is directly related to the screw's diameter and is inversely proportional to the square of the unsupported screw's length. Screws with a larger diameter at given unsupported length have higher critical screw speeds than screws with a smaller diameter at the same length.

Ball Screw Actuator Informational Video