Rolled Ball Screw

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

A rolled ball screw assembly is metallic, usually steel, and it is made of a threaded rod called the screw in addition to an internally threaded nut whose helical grooves match those of the screw. Inside the grooves and contained within the nut are many small ball bearings typically made of chrome steel. The balls provide smooth motion down the screw as they circulate through the nut. Read More…

Rolled Ball Screw Rolled ball screws are assemblies made up of a threaded screw, threaded nut and ball bearings that are manufactured through the process of cold rolling metal. Ball screws are frequently used with linear slides and actuators to translate torque into thrust.

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.

Deflectors or return systems retain the balls and keep them circulating through the nut. Rolled ball screws are up to 90% efficient when used with a motor. They are fairly precise with accuracies of several thousandths of an inch per foot and may be custom made. Rolled ball screws are used by many industries for the precise control they offer including the aerospace, computer, electronic, automotive and medical industries.

rolled ball screws Rolled Ball Screws - Universal Thread Grinding Company

Ball screws are also frequently used in manufacturing processes and are common in robots, automated assembly lines, material handling equipment, conveyors, machine tools, fly by wire control, precision assembly equipment and more.

There are three main ways that the threads on ball screws are fabricated: through grinding, milling and rolling. Milled screws are the result of machining that uses tools to cut and remove selected material. Ground screws are first machined to their gross shape then case hardened and ground on machines with abrasive materials that spin at rapid speeds. This process allows the resulting ball screws to withstand high temperatures that would otherwise distort the shape and efficiency of the screw.

Ground screws are the most precise option but are also more expensive. Rolled ball screws are made from blank metal workpieces that are cold rolled into the screw shaft. Rolled ball screws are made by using movable and fixed forming dies. A servo maintains the correct pressure and compensates for any changes in screw diameter as the dynamically positioned movable die forms the screw.

The linear axis of the screw, however, cannot be guaranteed past certain points; the rod may not be perfectly cylindrical. Because there is no grinding, machining costs decrease, which makes rolled screws an affordable choice for many manufacturers. After the rolled ball screw shaft is fabricated, the nut must be added to complete the assembly.

The screw and nut do not twist together like a nut and bolt do; instead, the balls spin around the grooves between the threading and allow the nut to slide.

Rolled Ball Screws Informational Video