A carrying device is disclosed for a retaining device for an X-ray tube assembly and an X-ray detector of an X-ray system. The carrying device includes a suspension device； a first carrier element arranged on the suspension device； a second carrier element； a first connecting element, the second carrier element being connected to the first carrier element via the first connecting element； a third carrier element connectable to the retaining device； and a second connecting element, the third carrier element being connected to the second carrier element via the second connecting element. In an embodiment, the first connecting element and/or the second connecting element include a revolute joint. Further, the distance between the suspension device and the first connecting element is variable via the first carrier element, and the distance between the first connecting element and the second connecting element is variable via the second carrier element.
