Linear guides are mechanical components that provide accurate and smooth guidance for linear motion. They are used as linear axis guidance mechanisms in NC machine tools, automation equipment, and conveyor systems. The rail-type structure with built-in ball bearings or roller bearings achieves high-precision linear motion and excellent rigidity. Major manufacturers such as THK, NSK, and IKO offer a wide range of products from standard to custom specifications with various sizes and precision grades. These linear motion components are essential for high-precision applications including X, Y, Z axes of CNC machining centers, industrial robot arms, and precision stages in semiconductor manufacturing equipment.