| 摘要 |
<p>The invention relates to a device for sealing an opening of an enclosure wall for access to a rotary shaft. The device (21), which is capable of being sealingly inserted in said opening (19) and of being secured against the wall by securing elements, is characterised in that said device includes two cylindrical parts (23, 24) assembled slidably relative to one another, coaxially relative to the opening: a first part (23) capable of being statically inserted in the opening, and a second part (24) capable of being secured to the wall by the securing elements (22) and subjected to the action of a resilient means (25) provided between the parts and tending to axially separate the second part from the wall.</p> |
