| 摘要 |
A magnetic fluid seal is provided, that is capable of producing a stable sealing performance by stably holding the magnetic fluid in place, even in cases when the two members become eccentric. The magnetic fluid seal includes: an annular magnetic circuit forming member 100 that is disposed on a housing 600; an annular member 200 that is disposed on a shaft 500; and a magnetic fluid 300 that is magnetically held between axially opposing surfaces of the magnetic circuit forming member 100 and the annular member 200. In addition, the annular member 200 comprises a flexible member that is swayable so that a portion of the annular member 200 that opposes the magnetic circuit forming member 100 follows the magnetic circuit forming member 100. |
