A ball screw (or ballscrew) is a mechanical linear actuator that translates rotational motion to linear motion with little friction. A threaded shaft provides a helical raceway for ball bearings which act as a precision screw. As well as being able to apply or withstand high thrust loads, they can do so with minimum internal friction.

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Ball screws offer a highly efficient means of converting rotary motion to linear motion. Precision ball screws have several bearing balls that transfer the load between the nut and screw. Ball screws are cataloged by screw thread accuracy: standard rolled, precision rolled and ground.

Ball screws are mechanical linear actuators that consist of a screw shaft and a nut that contain a ball that rolls between their matching helical grooves. The primary function of ball screws is to convert rotational motion to linear motion.

Ballscrews consist of a screw spindle and a nut integrated with rolling elements that cycle through a return mechanism. Ballscrews convert rotary motion into linear motion, and are most commonly used in industrial machinery and precision machines.

In this article, we will explore what a ball screw is, how it differs from a lead screw, its various uses, and the different elements that make up a ball screw. Ball screws are an essential component in many modern-day manufacturing systems.

Barnes is the industry leader in delivery of new precision ground, semi-precision and commercial grade ball screws with internal or external ball return systems.

NSK Ball Screws - developed through cutting-edge tribology (friction control technology): from miniature to ultra-large sizes, for machine tools, injection molding machines, and general machinery as well as for use in special environments.

The ball screw assembly consists of a screw and a nut, each with matching helical grooves, and balls which roll between these grooves providing the only contact between the nut and the screw.

Ball screws offer precision motion for automation. Converts rotary to linear motion with efficiency. Vital in automation for accuracy and control.