| 摘要 |
PROBLEM TO BE SOLVED: To provide a linear guide device including a guide rail of high straightness.SOLUTION: A linear guide device is provided with a plurality of mounting holes 20 for mounting a guide rail 1 to a mounted portion of a base and the like by inserting bolts 21, in a state of being axially arranged almost at equal intervals. These mounting holes 20 are through holes vertically penetrating through a top face 1b and a bottom face 1c of the guide rail 1 opposed to each other. The mounting holes 20 have the shape formed by communicating large-diameter cylindrical portions at both ends through a small-diameter cylindrical portion therebetween, and as the large-diameter cylindrical portions at both ends have the same shape and the same size, the mounting holes 20 have the symmetrical shape in the vertical direction. The large diameter cylindrical portion at an upper face 1b side is a counterbore 20a for accommodating a head of the bolt 21, and the large-diameter cylindrical portion at a bottom face 1c side is a dummy counterbore 20b. |
