| 摘要 |
A hydrodynamic bearing assembly including a shaft and surrounding bushing which define a journal, the shaft and bushing defining at the end thereof which is open to the ambient atmosphere a shelf-like surface. An absorbent washer, preferably formed of a very clean, particle free absorbent paper is placed on this surface, and preferably held in place by a plastic or metal retainer. Typically, the retainer is pressed in place and held in place by spring force or the like, so that the washer is held tightly against the surface.
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