Ball screw is defined

Ball screw is to convert rotary motion to linear motion, or convert linear motion into rotary motion of the ideal product. When ball screw consists of screw, nut and ball. Its function is to convert rotary motion to linear motion, this is the further extension and development of the ball screw, the significance of the development is the slide bearings from scrolling action into action. Because of the very small friction resistance, ball screw is widely used in all kinds of industrial equipment and precision instruments. When ball screw is the most commonly used on machine tools and precision machinery transmission components, 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. Have the characteristics of ball screw: 1, compared with sliding screw pair drive torque for a third because of the ball screw pair with 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, the guarantee of high precision ball screw pair 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 may ball screw pair due to is to use the 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, high rigid ball screw pair can be added to the pressure, due to the pressure can make the axial clearance to negative, and then get higher 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 may ball screw due to movement of high efficiency, low fever, so it can realize high speed feed ( Movement) 。