1、 Different properties
1. Ball screw: It is a commonly used transmission component in tool machinery and precision machinery.
2. Trapezoidal screw: Trapezoidal screw products are easy to adjust according to specific applications to achieve expected performance while minimizing cost control.
2、 Different characteristics
1. Ball screw pair: characterized by high precision, good reversibility, and high efficiency. Ball screws are widely used in various industrial equipment and precision instruments due to their low frictional resistance.
2. Trapezoidal screw: In the process of whirlwind milling of screws, threading and rolling are completed in one go, with high efficiency, low cost, and low machining accuracy. Its structural design ideas and schemes have good application value.
3、 Different uses
1. Ball screw pair: Its main function is to convert rotational motion into linear motion, or convert torque into axial repetitive force, and convert rotational motion into linear motion. This is a further promotion and development of exem screws. The significance of this development is to transform bearings from sliding motion to rolling motion.
2. Trapezoidal screw: suitable for rough machining of large threads. The main difference is in motion efficiency: due to the rolling motion of balls between the screw and nut of the ball screw pair, it can achieve higher motion efficiency. Compared with trapezoidal screws, the driving torque is less than 1/3. Therefore, it can not only convert rotary motion into linear motion, but also easily convert linear motion into rotary motion.
Due to the application of rotary milling and rolling technology, trapezoidal screw has a superior price advantage compared to ball screw. Moreover, trapezoidal screws have a longer history of use and are widely used.