Precision linear module is a table KR3306D using LM Guide and Ball integrated structure (aluminum base, standardized table and overhead drive systems, etc.), and has high rigidity and high precision compact motivate , the user can freely choose the main components from a variety of options to choose from in order to be able to achieve the most suitable for a particular application of the best technical specifications. KR-type scroll through outer raceway high rigidity of U-shaped cross-sectional shape, and both side surfaces of the LM rail portion and the central portion of the ball screw is integrally the inner slider, with minimal space to achieve a high rigidity, high-precision intelligent combination unit function. By the linear guide portion, even in a state where a preload is also brisk movement composed of four circular-arc grooves, to achieve high rigidity of the guide without a gap. In addition, changes in the frictional resistance caused by load variation is controlled to a minimum, meet the need for high precision feeding. Compared with the traditional model KR, higher operating speed, lower noise, and maintenance-free longer. In addition, due to the bearing seat A and B also doubles as a support unit that doubles as a bench inside slider, can greatly reduce the man-hours required for design and assembly, thereby reducing overall costs.