| 摘要 |
<p>Provided is a sealing device achieving further reduction of friction resistance while maintaining sealability. When viewed in a section passing the central axis line of the sealing device (100) having a circular shape, if the curvature radius of the curved surface between a first sloped surface (110X) and a second sloped surface (110Y) is denoted by R0, the curvature radii of the bent surfaces between the side surfaces of the side (O) of a fluid to be sealed in circular grooves and the first sloped surface (110X) are denoted by R1a, R2a, R3a, and R4a, respectively, for the respective circular grooves, and the curvature radii of the bent surfaces between the side surfaces of the side (A) of an atmosphere in the circular grooves and the first sloped surface (110X) are denoted by R1b, R2b, R3b, and R4b, respectively, for the respective circular grooves, the sealing device (100) is configured so as to satisfy the condition R1b, R2b, R3b, R4b < R0 < R1a, R2a, R3a, R4a.</p> |
