| 摘要 |
PROBLEM TO BE SOLVED: To improve gas permeability and sealing performance without changing the thickness of a seal lip from a supporting ring. SOLUTION: In a sealing device provided with a supporting ring 4 made of an impermeable material in relation to fluid O subjected to sealing, and a seal main body 5 made of a rubber elastic material to be integrally provided on the side of fluid O subjected to sealing of the supporting ring 4, and in which a seal-lip 7 made of a rubber elastic material is provided on the seal main body 5, a seal main body filling part 6 to be filled with the seal main body 5 and for blocking the atmosphere T side is provided on the supporting ring 4. |
