| 摘要 |
A shaft seal is interposed between a tank and a rotating shaft extending through the tank and having a non-rotatable stator fixed to the tank and a rotor fixed for rotation to the shaft. A multiple labyrinth structure is formed between the rotor and the stator for preventing the ingress of contaminants from the tank and the egress of lubricant from the shaft. A self-aligning arrangement is constructed and arranged to permit the stator to shift axially along the shaft and compensate for various forces inflicted on the shaft as the shaft rotates.
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