| 摘要 |
The need for a related-art nipple 3 is eliminated to lift restriction on the stroke of the slider S. A tubular protrusion 9 is provided on the face of a seal body H facing an end cap C, and maintains a positional relationship of being inserted into a lubricant supply hole 8 formed in the end cap when the face of the seal body faces the face of the end cap, and it has an insertion portion 9a receiving insertion of a lubricant supply nozzle 10 for a supply of lubricant, and a supply port 9b connected to a rolling-element directing passage 7 via the lubricant supply hole when it is inserted into the lubricant supply hole. A seal element is created on the insertion portion 9a and makes close contact with the lubricant supply nozzle in a process of inserting the lubricant supply nozzle into the insertion portion. |
