| 摘要 |
A spindle for a machine tool comprising a outer spindle portion and an inner spindle portion with each of the outer spindle portion and the inner spindle portion being rotatable relative to one another about the same axis. The outer spindle portion and the inner spindle portion each include a plurality of magnets that are arranged in an opposing manner with respect to one another whereby rotation of one portion of the spindle will induce rotation in the other portion of the spindle due to the attraction force between the magnets.
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