The support device has a frame unit (4) coupled to a rail vehicle (3), a centering unit (23) with arm (6) in the frame unit, and a unit to transmit power/weight of the coupling head (8) to the vehicle chassis. This consists of a pressure spring unit (9) supported indirectly on coupling head and centering arm. A pivot bearing unit (16,56) is positioned between coupling head and centering arm, and between arm and chassis. The spring unit is positioned non-central to the central axis of the coupling head.
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