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Ball Screw A ball screw is a mechanical device that is used to convert rotational motion into linear motion. It consists of a threaded shaft and a nut with ball bearings between them. The rotational motion of the shaft is transmitted to the nut, which moves along the threaded shaft, providing linear motion. The ball screw is widely used in machine tools, industrial robots, and other precision machinery. It offers several advantages over other types of linear motion systems, including high efficiency, high accuracy, and low friction. The ball bearings in the nut reduce friction and wear, resulting in a longer service life and lower maintenance costs. The ball screw also provides high accuracy and repeatability, making it ideal for applications that require precise positioning. In addition, the ball screw has a high load capacity and can handle heavy loads with ease. This makes it ideal for applications that require high force and torque, such as in machine tools and industrial robots. Overall, the ball screw is a highly efficient and reliable mechanical device that is widely used in a variety of applications. Its high accuracy, low friction, and high load capacity make it an ideal choice for precision machinery and other demanding applications.