There is a significant difference between linear guides and ball screws. Although both belong to linear transmission equipment, their working principles, requirements, and scope of use are different, but their performance in linear transmission is excellent. Ball screw is the most commonly used transmission component in tool and precision machinery, consisting of screws, nuts, steel balls, pre pressing plates, reversers, and dust collectors. Its main function is to convert rotational motion into linear motion or torque into axial repeated force, while also possessing the characteristics of high accuracy, reversibility, and high efficiency.

主要用于一些机床大型设备、雕刻机械等较为普遍，非常方便的把旋转的运动转换成直线运动，用起来非常方便，从而减少整个设备在旋转方面的磨损大大降低。直线导轨使用非常广泛但种类很多，方型四排高珠导轨用于一些大型机床设备，如平面磨床，切片机、线切割等；也因工作条件的不同选用的直线导轨也是不同的，更适于精密测量仪器、半导体制造和检验设备、非标自动化机械设备以及其他精密直线运动为重要的应用场合等，因不同设备需要选择正确的导轨也是关重要的。

It is mainly used for some large-scale machine tools, carving machinery, etc. It is very convenient to convert rotating motion into linear motion, which is very convenient to use, thereby reducing the wear and tear of the entire equipment in terms of rotation. Linear guide rails are widely used but have many types. Square four row high ball guide rails are used for some large machine tools and equipment, such as surface grinders, slicers, wire cutting, etc; The selection of linear guides varies depending on the working conditions, and is most suitable for precision measuring instruments, semiconductor manufacturing and inspection equipment, non-standard automated mechanical equipment, and other applications where precision linear motion is crucial. Choosing the correct guide is also crucial for different equipment needs.

滚珠丝杆的特性：与滑动丝杆副相比驱动力矩为1/3、高精度的保证、微进给可能、无侧隙、刚性高、高速进给可能。直线导轨的特性：定位精度高、磨耗少能长时间维持精度、使用高速度运动且大幅降低机台所需驱动马力、可同时承受上下左右的负荷、组装容易并具互换性、润滑结构简单。

The characteristics of ball screw: Compared with sliding screw pairs, the driving torque is 1/3, ensuring high accuracy, possible micro feed, no backlash, high rigidity, and possible high-speed feed. The characteristics of linear guide rail include high positioning accuracy, low wear, ability to maintain accuracy for a long time, use of high-speed motion and significantly reduce the required driving horsepower of the machine, ability to simultaneously bear loads of up, down, left, right, easy assembly and interchangeability, and simple lubrication structure.