Lead Screws

A reliable source for Ball Screw information and leading Ball Screw Companies & Manufacturers.

Lead screws are used in many varieties of equipment to generate controlled, precise lateral movement. They can be used to move large plates in crushing applications, and they can be used for delicate equipment movement. Lead screws are often used to move tables or other parts of a machine. Read More…

Lead Screws Lead screws are tools used to convert rotational motion into linear motion. Lead screws consist of a threaded shaft and nut. As the nut moves up and down the shaft, force is exerted linearly on one side of the nut, depending on the direction of the nut's movement.

Leading Manufacturers

Bethel, CT  |  800-245-5013

Del-Tron Precision, Inc. produces and supplies various automated equipment, such as ball screw actuators. Our engineers have designed our ball screws to offer accuracy that is unparalelled by competitors. We are delighted to bring you a custom experience sure to impress and amaze. Call Del-Tron or visit our website to get in touch with our customer service reps today!

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Del-Tron Precision, Inc. $$$

Bethel, CT  |  800-447-2042

When it comes to ball screws, no one does them better! We offer same day shipping to ensure that your product will be sent to you as soon as possible in order to keep your business moving smoothly. We have the technical staff that has the capabilities and the know how to work with you to come up with a product that will fit your specific requirements. Call Tusk or visit our website today!

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Tusk Direct, Inc. $$$

New Berlin, WI  |  800-298-2066

For over 70 years, Dynatect has provided motion control solutions for a wide range of markets. Our ball screws are custom-engineered for both OEM and replacement applications. Not only can Dynatect manufacture new ball screw assemblies, we can also reverse engineer, optimize and repair ball screws from almost any manufacturer. All work is conducted in a modern ISO 9001:2015 certified facility, with experienced technicians, onsite engineering, and inspection/test equipment. Contact us today and we will find a solution that works perfectly for you.

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Dynatect Manufacturing, Inc. $$$

Hicksville, NY  |  516-595-7495

Isel produces ball screws and ball nuts in a variety of styles and diameters. Our ball nuts are patented and offer a simple anti-backlash design. All our ball screws and ball nuts are produced in our own factory in Germany and have found markets world wide, including Asian markets. Each of our products is tested meticulously before leaving our state of the art facility to further ensure quality. For more information on how we may be able to assist you, visit our website today!

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Isel USA, Inc. $$$

Muskego, WI  |  800-828-3431

PST Group specializes in difficult, close-tolerance thread rolling, actuators, acme, ball & lead screws. With oversize capacities, we take pride in our innovative precision engineering for aerospace, aviation, medical & agricultural industries. We use steel, plain carbon and alloy, stainless steel, brass, aluminum and high nickel. ISO 9001:2008 and AS9100 B Certified.

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PST Group $$$

Schaumburg, IL  |  847-310-1111

We manufacture several models of rolling ball screws—flat top and bottom at flange’s circumference (BTK); rectangular nut with mounting holes (BNT); a large (BLK) and a super (WTF) lead rolled ball screw for stability; rotating-nut ball screw having a ball screw nut support bearing (BLR).

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THK America, Inc. $$$

Cleveland, OH  |  800-321-7800

Nook Industries manufactures inch and metric ball screws, acme screws and lead screws. We also produce jack screws, ground ball screws, ball screw jacks, lead ball screws, ball screw assemblies and metric ball screws. We specialize in manufacturing solutions for positioning and lifting applications. Our team aims to be innovative, responsive, and flexible in every project we take on. Call us today and ask us what we can do!

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Nook Industries, Inc. $$$
placeholder image Del-Tron Precision, Inc. Tusk Direct, Inc. Dynatect Manufacturing, Inc. Isel USA, Inc. PST Group THK America, Inc. Nook Industries, Inc.

Lead screws can also offer precision and accuracy for graphic imaging equipment, including color scanners, recorders and printers. They also provide solutions in other applications, such as in wire bonders, disk drive testers and linear slide systems. Unlike ballscrews, which make use of rollers to reduce friction and increase efficiency, lead screws involve direct contact between the screw and the nut. Innovations in screw thread design have mitigated the disadvantages that presented themselves because of this inefficiency. Acme screws, for example, are among the most popular lead screw varieties.

Lead Screws Lead Screws - Universal Thread Grinding Company

The special trapezoidal shape of their threads increases their operating lifespan and efficiency. Their design allows them to prevent unwanted backdriving, which is the reverse motion of a nut. Unintended backdriving can be catastrophic, especially in contexts that involve load bearing. Acme screws eliminate this risk because of their thread shape and angle.

The high amount of friction caused by direct contact between the threads and the nut is the main disadvantage of using lead screws compared to other screw varieties in creating linear motion. The higher force requirement to overcome the friction causes a great reduction in working efficiency. However, screw designs like acme screws are comparatively efficient. Lead screws are available in a variety of configurations.

Nut materials, lead and thread forms, lubrication types, speed, length and strength are all customizable. Such customizations depend on the screw's intended application; static, dynamic, tension, thrust, compression and all other kinds of loads each require screws designed specifically for their accommodation.

Due to the variable conditions of cleanliness, friction and lubrication, the exact operating lifespan of a lead screw cannot always be accurately predicted. However, proper maintenance practices like frequent lubrication, cleaning and general inspections can extend a lead screw's lifespan substantially.

Lead Screws Informational Video