Linear rail is mainly used in high precision or high speed linear reciprocating movement, and can bear a certain torque, can achieve high precision linear motion under high load. It can be understood as a rolling guide, which is an infinite rolling cycle composed of steel balls between the slider and the guide, which enables the load platform to easily perform high-precision linear motion along the guide, and reduces the friction coefficient to that of a normal traditional sliding guide. In this article, we will introduce working principle of linear rail in detail.

