Roller guides are slider assemblies with double parallel grooves, containing either a ball bearing or a load-bearing roller. The system serves as the foundation of many industrial applications to create low-friction and high-rigidity guides that can handle loads ranging from a few grams to thousands of kilograms. Therefore, it is mainly used in CNC machines. Replacing it for some classical guides such as square tenon guide, V tenon guide, swallowtail tenon guide on some universal machines will bring about high efficiency in working process.