| 摘要 |
PROBLEM TO BE SOLVED: To provide a guide rail for a linear guide device for reducing deformation of a load ball rolling groove as much as possible by fastening a mounting bolt of the guide rail. SOLUTION: In the guide rail 1 for the linear guide device, a dimension A from a bottom surface 6a of a counter boring part 6 of a bolt hole 7 for mounting the guide rail 1 having the counter boring part 6 to a bottom surface 1c of the guide rail 1 is formed so as to be smaller than a minimum dimension B from an end part closer to a rail bottom surface 1c of a load rolling groove surface 3f of a groove 3b closest to the rail bottom surface 1c of the load ball rolling groove 3 on a side surface of the guide rail 1 up to the rail bottom surface 1c. |
