1 ball screw, is used to convert rotary motion to linear motion; or convert linear motion into rotary motion of components of the ideal product. 2 when the ball screw as active body, nut can follow screw rotation Angle according to the corresponding specifications lead into linear motion, passive artifacts by nut and nut connection, so as to realize the corresponding linear motion. The characteristics of the ball screw: 1 compared with sliding screw pair drive torque for a third Of the ball screw and wire between the mother has a lot of ball screw shaft in rolling motion, so can get higher movement efficiency. Compared with the past sliding screw pair drive moment achieved under a third, which meet the same movement result the required power for the use of rolling screw pair of 1/3. In the aspect of energy saving is very helpful. 2 and the guarantee of high precision Ball screw is made of Japan the world's highest level of coherent mechanical equipment production, especially in the grind cutting, assembly, inspection factory environment aspects of each process and strict control of temperature, humidity, due to the perfect quality management system to ensure adequate precision. 3 micro feed Ball screw is due to the use of ball movement, so start torque, there will be no sliding movement that crawl phenomenon, can realize the accurate assurance of micro feed. 4 no side gap and high rigidity Ball screw can be added to the pressure, due to the pressure can make the axial clearance to negative, then get high rigidity (ball to add to pressure on the ball screw, in the actual used for mechanical device and so on, due to the repulsive force of ball can make silk mother rigidity increase). 5 high speed feed Ball screw due to the movement of high efficiency, low fever, so it can realize high speed feed (movement). application Industrial machinery, printing machinery, paper-making machinery, automation machinery, textile machinery Electrical machinery, mechanical arm, measurement equipment, x-y platform, medical equipment, factory automation equipment Transmission machinery, metal heat treatment equipment, nuclear reaction device, the actuator Aerospace industry: flaps actuator devices, seat actuator, airport