A ring-mount joint between two vehicle units of an articulated bus, with the joint comprising two cantilevers, wherein each cantilever is arranged on one of the vehicle units, with each cantilever comprising a slewing ring, wherein the two slewing rings of the cantilever are mounted in each other so that they can be pivoted, wherein a damping device is provided for damping the rotational motion of the two cantilever relative to each other, wherein in the space enclosed by the inner slewing ring, there is arranged an annular chamber damper, wherein the annular chamber damper comprises two inter-mounted housing parts that are rotatable relative to each other, wherein the one housing part is in connection with the one cantilever and the other housing part is in connection with the other cantilever.