Ball screw is an ideal product for changing rotary motion into linear motion, or converting linear motion into rotary motion.
Ball screw is the most often used transmission element in tool machinery and precision machinery. Its main function is to convert rotary movement into linear motion, or to convert torque into axial repetitive force, while having the characteristics of high precision, reversibility and high efficiency. Due to its small friction resistance, ball screw is widely used in various industrial equipment and precision instruments.
Ball screw consists of screw, nut, metal ball, preload plate, reverser and dust collector. Its function is to convert rotary motion into linear motion, which is a further extension and development of Aikem screw. The important significance of this improvement is to change the bearing from sliding motion to rolling motion.

The transmission efficiency is high, the friction loss is small, and the transmission efficiency gate of the ball screw nut pair is 0.85~0.98, which can realize high-speed movement.

Smooth movement without crawling. Due to the small frictional resistance and the extremely small difference between the dynamic and static friction coefficients, the movement is stable and crawling is not easy to occur.

The transmission accuracy is high, and there is no lost motion ball screw pair in the reverse direction. After preloading, the axial gap can be eliminated.

The wear is small, the accuracy is maintained, and the service life is long.

With the reversibility of motion, it can convert rotary motion into linear motion, and it can also convert linear motion into rotary motion, that is, both the screw rod and the nut can be used as the driving part or the driven part.

The ball screw can be preloaded with balls so that there is no " wiggle" between the ball screw and the ball nut. This is particularly desirable in applications where the load on the screw varies quickly, such as machining tools.

Ball screws are used in plane and missiles to go manage surfaces, specifically for electric powered fly by using wire, and in automobile power steering to translate rotary motion from an electric motor to axial motion of the steering rack. Because its small friction drag,They are also used in machine tools, robots and precision meeting equipment. High precision ball screws are used in steppers for semiconductor manufacturing.

Rolled Ball crew consist of a screw spindle and a nut integrated with rolling elements that cycle through a return mechanism. It convert rotary motion into linear motion, and are most regularly used in industrial machinery and precision machines.

Kairun produce comprehensive types with SFU, SFS, SFE, SFY kind, single and double nuts. The ball screw provide smooth movement and low friction which can be supplied quickly from stock, at a lower production cost.

Ball screws are used in aircraft and missiles to move control surfaces, especially for electric fly by wire, and in automobile power steering to translate rotary motion from an electric motor to axial movement of the steering rack.

They are additionally used in machine tools, robots and precision assembly equipment. High precision ball screws are used in steppers for semiconductor manufacturing.

Due to the high mechanical efficiency of ball screws, the torque required to function a ball screw is approximately 30% of traditional screw-driven transmission.

The ball screw is rolling friction, and the trapezoidal screw is sliding friction. The temperature rise of the former is much lower than that of the latter during work, so it can undertake the task of high-speed transmission. Ball screws are more suitable for working in high-speed and high-temperature environments, and most large projects will prefer to use ball screws. The surface damage of rolling friction is much smaller than that of sliding friction. Therefore, when the conditions of cleaning and lubrication are met, the maintenance life of the ball screw is much longer than that of the trapezoidal screw.

Precision ground DFU series is a highly advanced and progressive product that has been designed to meet the needs of modern industries. These precision ground DFU series are engineered with the latest technology and are of the highest quality. They have been constructed to provide the quality performance in phrases of accuracy and precision.

The ball screw thread of our company has a total length of 4 meters and 6 meters. It can also be cut to the length you want. Both ends of the screw are accepted for processing. The processing fee is charged separately. Please consult the salesperson.

Our ball screw thread has low friction loss and high transmission efficiency.

Ball screw is a desired product which turns rotary motion into linear motion, or linear motion into rotary motion. Ball screw is made of screw, nut, ball and reversing device. Its function is to turn the rotary motion into linear motion, which is a further extension and development of ball screw. The significance of this development is to move into a rolling bearing from sliding action. With little friction, ball screws are widely used in various industrial equipment and precision instrument.

The DFU ball screws is with double nut, flange, and DIN specification nut. It is characterized by high precision, reversibility and high efficiency. We ensure that every piece of equipment we use is maintained and calibrated to its unique specifications. High precision ball screw is a system that converts rotary movement into linear motion, or converts linear movement into rotary motion. This machine that converts between rotary movement and linear movement is indispensable in industrial manufacturing machinery.

Heavy Duty Ball Screw is widely use in large laptop which need good load capacity. Our ball screw collection DFU is with heavy responsibility for its structure which have two nuts. Double nuts ball screw is for frequent action and high precision maintenance.