A ball screw is a mechanical device that converts rotational motion into linear motion with high efficiency. It consists of a screw shaft and a nut that contains ball bearings. As the screw rotates, the balls roll between the screw and nut, reducing friction and allowing for smooth movement. 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, including automotive, aerospace, and manufacturing. They offer advantages like high load capacity, durability, and minimal backlash, making them essential components in systems where accuracy and reliability are crucial.