Difference Between Ball Screw And Sliding Screw

A ball screw is an ideal product for converting rotary motion into linear motion or into rotary motion. Ball screw is the most commonly used transmission part in machine tools and precision machinery. Its main function is to convert rotary motion into linear motion, or convert torque into axial repetitive force, and at the same time, it has high precision. Reversible, efficient and other characteristics. Ball screws are widely used in various industrial equipment and precision instruments because of their low friction. The ball screw consists of a helix. nut. steel ball. preload. Reactor. Composed of dust filter. Rolling screw and sliding screw are the two most commonly used screws in mechanical equipment. For users who are new to the screw, it is difficult to distinguish the two differences: the ball screw is used for precision transmission, which is efficient, flexible, and stable. It can maintain good accuracy; the accuracy and efficiency of the sliding screw is slightly worse than that of the ball screw, and the sliding screw also generates a large amount of heat (cooling for a long time), so its life is short.

    Pros: Efficient. High precision. High speed; Disadvantage: high requirements for the use environment. expensive;

    Advantages of sliding screw: Advantage: low price. Self-locking (partially); Disadvantage: Inefficient. Low precision. low speed;

    Ball screw and sliding screw transmission efficiency

    1. The transmission efficiency of the ball screw is about 90%-99%. 2. The transmission efficiency of the sliding screw is about 25%-50%. 3. Using a ball screw to drive the same large load can improve transmission efficiency, reduce energy consumption and improve accuracy.

    The difference between the accuracy of the ball screw and the sliding screw

    The precision of a ball screw is beyond the reach of a screw. Therefore, only ball screws can be installed on testing instruments with high precision requirements.

    The difference between ball screw and sliding wire in application:

    Ball screws are mostly used in CNC machine tools. Positioning table and other occasions that require precise positioning and transmission, are mostly used with stepper motors and servo motors;

    The sliding screw is generally only used to transmit force. There is no high positioning requirement, and it cannot be used continuously for a long time.