A ball screw is a mechanical device that converts rotational motion into linear motion with high efficiency. It consists of a threaded shaft and a nut that contains ball bearings. As the shaft rotates, the balls roll between the threads, allowing smooth movement with minimal friction. This design makes ball screws ideal for applications requiring precise positioning, such as in CNC machines and robotics. Ball screws are commonly used in various industries due to their ability to handle heavy loads and provide accurate motion control. They are often found in automated systems, 3D printers, and industrial machinery. Their durability and performance make them a popular choice for engineers and designers.