| 摘要 |
A rotary damping device has a shaft provided at one end with a rotor and the shaft also has a damping portion extending radially. The shaft is rotatably housed and accommodation spaces in the device are filled with oil. Located near to the opening of the shaft bearing is a radially extended sucker-shaped flange having a surface sloped axially forward. When the flange is contained within the accommodation space the rim portion of the flange presses against the front wall of the space to prevent damping oil leaking from the housing.
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