| 摘要 |
PURPOSE: A magnetic fluid seal is provided to overcome problems related to the reduction of lifetime and to replace a cycle by preventing the generation of abrasions and leakages due to the frequent movement of a shaft. CONSTITUTION: A shaft(110), which obtains torque from an external driving source, is inserted into a housing. The shaft includes a forward and backward shaft(111) acting as an outputting shaft and a rotary shaft(112) acting as an input shaft. The forward and backward shaft is linearly driven in an axial direction. The torque of the driving source is inputted to the rotary shaft. The forward and backward shaft is combined with the rotary shaft with a screw structure.
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