How are ball screw bearings installed?

Ball screw bearings, as core components in modern industrial transmission systems, play a key role in converting rotational motion into linear motion. With its low friction and high precision characteristics, it is widely used in various industrial equipment and precision instruments, providing strong support for the efficient operation of modern industry.

Ball screw bearings are composed of screws, nuts, steel balls, pre-compressed pieces, reversers, dust guards and other components. Transmission is achieved through the rolling of the balls between the screw and the nut. This transmission method not only has low friction resistance, but also has the characteristics of reversibility and high efficiency, making ball screw bearings the most commonly used transmission element in machine tools and precision machinery.

There are many options for installing ball screw bearings to meet the needs of different application scenarios. Double-push-free mode, double-push-support mode, double-push-double-push mode, and screw-fixed, nut-rotating transmission modes. Each mode has its unique advantages and applicable scenarios. For example, the double-push-double-push method can apply appropriate pre-tension force to the screw and increase the screw support stiffness, thereby partially compensating for the thermal deformation of the screw; while the method of fixing the screw and rotating the nut can avoid slender ball screws. Problems that may occur during high-speed operation include increasing the rotation speed and screw support stiffness.

When installing ball screw bearings, the two ends of the ball screw are usually connected through the bearing and bearing seat, and then connected to the equipment through the bearing seat. The screw nut is connected to the nut seat through flanges, keys or threads to ensure the stability and reliability of the entire transmission system.