| 摘要 |
The compact ferrofluid seal and radial bearing assembly, particularly useful for the support and sealing of a shaft, such as a computer disk drive shaft, where space is at a premium, which assembly comprises a magnetically-permeable radial bearing apparatus having inner and outer race elements, moveable elements, and a cage element to retain the moveable elements, and a ferrofluid single-stage seal apparatus comprising a radially-polarized permanent magnet to retain a sealing amount of ferrofluid in a radial gap between the inner and outer race elements.
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