| 摘要 |
A flexible coupling for a ducting system. The coupling comprises a first member including a first engaging member, the first member defining a receiving portion and a second member including a second engaging member, the second member, in use, engaging with the receiving portion such that the first and second members can be held together to define a retaining cavity. The coupling has a seal arranged to seal, in use, the gap between the first and a third member. A third member is retained, in use, in the retaining cavity such that it is rotatable in any of the three rotational degrees of freedom within the cavity. There is a carbon first load bearing member positioned between the second and third members such that, in use, the load bearing member provides a load bearing surface in engagement with the surface of the second member.
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