| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device which can increase a discharge amount of a lubricant while suppressing the lowering of pressure in a sealing space.SOLUTION: In this sealing device A, a first discharge port 15 for discharging a lubricant in a sealing space S1 to the outside of the sealing space S1 is formed at a part of a circumferential direction between an annular part 12 and a circular part 22. The sealing device A comprises a closing part 15b at the first discharge port 15, and a slit 15c which is opened when applied with prescribed pressure is formed at the closing part 15b. Furthermore, a protrusion 13a which forms a second discharge port 16 for discharging the lubricant in the sealing space S1 between a first lip part 13 and a second lip part 14 is formed in a circumferential position of the first lip part 13 which corresponds to the first discharge port 15. |
