The caged roller LM Guide is a roller guide that achieves low friction, smooth motion, and long-term maintenance-free operation by using a roller cage. In addition, to ensure ultra-high rigidity, rollers with low elastic deformation and optimized diameter and length are used as the rolling elements. Furthermore, the lines of rollers are placed at a contact angle of 45° so that the same rated load is applied in all (radial, reverse-radial, and horizontal) directions.