Linear guide rail, also known as line rail, slide rail, linear guide rail, linear slide rail, is used in high-precision or high-speed linear reciprocating motion occasions, and can bear a certain torque, can achieve high-precision linear motion under high load. In Taiwan, linear guideway is generally called linear guideway. Linear guide can be divided into: roller linear guide rail, cylindrical linear guide rail, ball linear guide rail, three kinds are used to support and guide the moving parts to do reciprocating linear motion according to the given direction. According to the nature of friction, linear motion guide can be divided into sliding friction guide, rolling friction guide, elastic friction guide, fluid friction guide and so on.

直线导轨运动的作用是用来支撑和引导运动部件，按给定的方向做往复直线运动。依按摩擦性质而定，直线运动导轨可以分为滑动摩擦导轨、滚动摩擦导轨、弹性摩擦导轨、流体摩擦导轨等种类。

The function of linear guide motion is to support and guide the moving parts to do reciprocating linear motion according to the given direction. According to the nature of friction, linear motion guide can be divided into sliding friction guide, rolling friction guide, elastic friction guide, fluid friction guide and so on.

直线轴承主要用在自动化机械上比较多,像德国进口的机床,折弯机,激光焊接机等等,当然直线轴承和直线轴是配套用的。像直线导轨主要是用在精度要求比较高的机械结构上,直线导轨的移动元件和固定元件之间不用中间介质，而用滚动钢球。

Linear bearing is mainly used in automatic machinery, such as machine tools imported from Germany, bending machine, laser welding machine, etc., of course, linear bearing and linear shaft are used together. For example, linear guideway is mainly used in the mechanical structure with high precision requirements. There is no intermediate medium between the moving element and the fixed element of the linear guide, but rolling steel ball is used.

导轨、直线轴作为设备的核心部件之一，它的功用是起导向和支承作用。为了保证机器有较高的加工精度，要求其导轨、直线具有较高的导向精度和良好的运动平稳性。

As one of the core components of the equipment, guide rail and linear shaft are used to guide and support. In order to ensure the high machining accuracy of the machine, the guide rail and straight line are required to have high guiding accuracy and good motion stability.

设备在运行过程中，由于被加工件在加工中会产生大量的腐蚀性粉尘和烟雾，基这些烟雾和粉尘长期大量沉积于导轨、直线轴表面，对设备的加工精度有很大影响，并且会在导轨直线轴表面形成蚀点，缩短设备使用寿命。为了让机器正常稳定工作，确保产品的加工质量，要认真做好导轨、直线轴的日常维护。

During the operation of the equipment, a large amount of corrosive dust and smoke will be produced during the processing of the processed parts. Based on these smoke and dust, a large number of them are deposited on the surface of the guide rail and linear shaft for a long time, which has a great impact on the processing accuracy of the equipment, and will form corrosion spots on the surface of the linear axis of the guide rail, thus shortening the service life of the equipment. In order to ensure the normal and stable operation of the machine and ensure the processing quality of the products, it is necessary to do a good job in the daily maintenance of the guide rail and linear shaft.