The bush joint combines the properties of the ball joint with the slit bush. The inner part is ball-shaped and permits greater cardanic motion compared to the slit bush. The outer tube has a slit that tapers into the rubber body. At installation, the bush joint is strongly radially prestressed.
The bush joint can also be realised using a concavely moulded outer tube. This then forms an almost concentric rubber layer with the curved inner part.