The function of linear guide motion is to support and guide moving parts to perform reciprocating linear motion in a given direction. According to the friction properties, linear motion guides can be divided into sliding friction guides, rolling friction guides, elastic friction guides, fluid friction guides, and other types. Linear bearings are mainly used in automation machinery, such as machine tools, bending machines, laser welding machines, etc. imported from Germany. Of course, linear bearings and linear shafts are used in conjunction. Linear guides are mainly used in mechanical structures with high precision requirements. There is no intermediate medium between the moving and fixed components of linear guides, but rolling steel balls are used.