A rotary seal unit comprises a rotary assembly 8b that is configured to be mounted on a rotary shaft 4 and includes a first sealing element 60, and a static structure 8a that includes a second sealing element 16. The rotary assembly is configured for rotational movement about a rotational axis relative to the static structure. The first and second sealing elements provide a sealing interface 72 between adjacent sealing faces 70 and 30 of the first and second sealing elements. The rotary assembly includes a clamping assembly 41 for clamping the rotary assembly to the rotary shaft. The clamping assembly includes a clamping device 42 and a spacer element 44 that is located between the clamping device and the rotary shaft. The spacer element can be adapted to fit a range of rotary shafts having different diameters.
Rotary seal unit
2017-12-27
Patent
Elektronische Ressource
Englisch