| 摘要 |
PROBLEM TO BE SOLVED: To provide a linear guide device capable of stably maintaining a lubrication state over a long term.SOLUTION: In a rolling grooves 21a, 21b of a slider body 2A, a groove part 8, which temporarily stores lubricant such as grease supplied from a grease nipple, is formed, and a ball 3 and a rolling passage 31 are lubricated by the lubricant stored in the groove part 8. The groove part 8 is formed so that the groove bottoms of the rolling grooves 21a, 21b whose cross section has a substantially semicircular shape extending in a linear motion direction. The width direction and the depth dimension of the groove part 8 are respectively 20-40% of the diameter of the ball 3. |
