Ball screw is to convert rotary motion to linear motion, or convert linear motion into rotary motion of the ideal product.

Ball screw is the most commonly used on machine tools and precision mechanical transmission device, its main function is to convert rotary motion to linear motion, or convert torque into axial force repeatedly, at the same time combines the characteristics of high accuracy, reversibility and high efficiency. Because of the very small friction resistance, ball screw is widely used in all kinds of industrial equipment and precision instruments.

Ball screw by screw, nut, steel ball, preloading, reverser, dust control device. Its function is to convert rotary motion to linear motion, this is actmix further extension and development of the screw, the significance of the development is the bearings from sliding action into a rolling action.