| 摘要 |
A bearing system includes a barrier, a bearing unit housing, and a bearing unit for conveying a drive through the barrier. The bearing unit housing defines an opening through the barrier extending between the first and second sides of the barrier. The bearing unit housing extends along an axis and includes a contact portion extending parallel to the axis which contacts a contact portion of the bearing unit extending parallel to the axis. The length of the contact portion of the bearing unit housing exceeds the distance along the axis between the part of the contact portion of the bearing unit nearest the first side of the barrier and the part of the contact portion of a replacement bearing unit nearest the second side of the barrier. The invention offers particular advantages in maintaining containment provided by the barrier during barrier replacement.
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