| 摘要 |
A mechanical seal (MS) comprises a first case member (1) that is mounted on a rotatably supported rotatable shaft and that rotates together with the rotatable shaft, a second case member (2) that is mounted on a member supporting the rotatable shaft and that forms a space between the first case member (1) and the second case member (2), a first seal member (3) that is mounted on the first case member (1), an urging member (4) that is mounted on the second case member (2), a second seal member (5) that is arranged concentrically with the first seal member (3) and that is pushed against the first seal member (3) with being urged in an axial direction of the rotatable shaft by the urging member (4), and a transmitting member (6) that transmits an urging force of the urging member (4) to the second seal member (5), and the urging member (4) is arranged both concentrically with the second seal member (5) and near the second seal member (5) in its radial direction. |
