Linear guide rails and sliders are composed of sliders, guide rails, rolling circulation systems, lubrication and dust-proof systems, etc. High-precision linear motion is achieved through the rolling circulation of steel balls between the slider and the guide rail. It has characteristics such as automatic self-aligning, strong interchangeability, high rigidity in all directions, low friction, and high precision. It can be divided into types such as flange type and square type, and is widely used in fields such as machine tools, automated production lines, and medical equipment.