| 摘要 |
The sealing device has drives (21,22,23) for two seal rollings (4a,4b) and two roll bearings (2a,2b) for each seal rollings. The latter roll bearing is held in a plane perpendicular to the roll axis in a moving or pivoted way and is flexibly prestressed in direction form the former roll bearing. Adjustment devices (11,12,13) are provided for adjusting a minimum distance of the roll bearings forming a stop for an electrical biasing prestressing. |
