| 摘要 |
A swivel with a first and a second main part (7 and 20) which are arranged for relative rotation about a longitudinal axis and to be influenced by axial forces, which are exerted against the main parts (7, 20), attempting to pull them away from each other. Between contact faces (32, 37) of the main parts (7, 20) there is mounted a rolling bearing (23). The contact face (37) of the first main part (2, 7) is a surface of a nut (34) which can be moved axially and then secured on this main part (2, 7). Between the nut's contact face (37) and a shoulder (36) of the first main part (7) facing the contact face, there is provided a pressure casing (35), which can be elastically compressed during a movement of the nut (34) towards the shoulder (36). The spring characteristic of the pressure casing (35) corresponds to the spring characteristic of the portion (81) of the first main part (2, 7) which is located between the shoulder (36) and the nut (34). |
