| 摘要 |
The invention relates to a bearing device (39,40), which is particularly suitable for use in purified atmospheres such as clean rooms or purified air regions in factories. In order to prevent the rub-off from the bearing device (39, 40) from entering the purified atmosphere, the bearing device (39, 40) is provided with a gas outlet (44,52) which is joined to a vacuum line (42). Gas is thus extracted from the purified element which suctions rub-off which might occur to an external area.
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