Linear guide rail, also known as line, slide, linear guides, linear slides, linear reciprocating motion for the occasion, with a higher rated than the linear bearing load, and can take some of the torque at high load circumstances to achieve high precision linear motion.
Linear bearings are used in automated machinery are more like the German imports of machine tools, paper bowl machine, laser welding machine and so on, of course, linear bearings and linear axes are used for matching. Like the linear guide is mainly used in high precision mechanical structure

The role of linear motion guides are used to support and guide the moving parts, according to a given direction reciprocating linear motion. Determined by the nature by friction, linear motion guide rail can be divided into sliding friction, rolling friction rail, rail elastic friction, fluid friction in the guide and other species