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.

直線導軌運動的作用是用來支撐和引導運動部件，按給定的方向做往復直線運動。依按摩擦性質而定，直線運動導軌可以分為滑動摩擦導軌、滾動摩擦導軌、彈性摩擦導軌、流體摩擦導軌等種類。

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.

直線軸承主要用在自動化機械上比較多,像德國進口的機床,折彎機,激光焊接機等等,當然直線軸承和直線軸是配套用的。像直線導軌主要是用在精度要求比較高的機械結構上,直線導軌的移動元件和固定元件之間不用中間介質，而用滾動鋼球。

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.

導軌、直線軸作為設備的核心部件之一，它的功用是起導向和支承作用。為了保證機器有較高的加工精度，要求其導軌、直線具有較高的導向精度和良好的運動平穩性。

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.

設備在運行過程中，由于被加工件在加工中會產生大量的腐蝕性粉塵和煙霧，基這些煙霧和粉塵長期大量沉積于導軌、直線軸表面，對設備的加工精度有很大影響，并且會在導軌直線軸表面形成蝕點，縮短設備使用壽命。為了讓機器正常穩定工作，確保產品的加工質量，要認真做好導軌、直線軸的日常維護。

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.