LM Guide Actuator Model KR achieves high rigidity and high accuracy in minimal space thanks to the highly rigid U-shaped cross section of its outer rail and its inner block that features LM Guide units on both side faces and an integrated ball screw unit in the center. In addition, since housings A and B also serve as support units and the inner block serves as a table, this model allows for a significant reduction in labor hours required for design and assembly, thus contributing to an overall lower cost.