| 摘要 |
A flexible coupling for a ducting system. The coupling comprises a first member (1) including a first engaging member, the first member (1) defining a receiving portion and a second member (3) including a second engaging member (4), the second member (3), in use, engaging with the receiving portion such that the first (1) and second (3) members can be held together to define a retaining cavity. The coupling has a seal (6) arranged to seal, in use, the gap between the first (1) and a second member (3). A third member (7) 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 (8) positioned between the second (3) and third (7) members such that, in use, the first load bearing member (8) provides a load bearing surface in engagement with the surface of the second member (3). <IMAGE>
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