A recirculating ball is a type of mechanical device commonly used in steering systems of vehicles. It consists of a threaded shaft and a ball bearing that moves in a circular path, allowing for smooth and efficient motion. This design helps convert rotational motion into linear motion, making it easier to steer the vehicle. In addition to vehicles, recirculating ball mechanisms are also found in various machinery and equipment, such as industrial robots and machine tools. Their compact design and ability to handle heavy loads make them a popular choice in applications requiring precise movement and control.