A linear guideway, also known as a linear rail or linear guide, is a precision mechanical component designed to support and guide motion along a straight path with high accuracy and minimal friction. It typically consists of a rail and a carriage or block that moves along the rail, with rolling elements such as ball bearings or rollers placed between them. The rolling elements reduce the friction between the moving parts, allowing for smooth, precise linear motion, even under heavy loads. Linear guideways are essential in applications requiring precise positioning and high repeatability, such as CNC machines, automation systems, robotics, and semiconductor manufacturing equipment. They offer high stiffness, load capacity, and long service life, making them suitable for environments where stability and accuracy are critical.