vehicles correspond to each other during the coupling process the joint device 20 comprises a damper 27 that is connected to the coupling carrier 30 on the one side and to the joint device on the other side in the illustration shown in fig7 two joint devices 31 for connecting the two coupling carriers 30 together are provided insertion openings for accommodating the insertion frames 32 are provided in the vehicle parts not shown the insertion frames 32 finally accommodate the joint device 31 for this purpose the insertion frame 32 comprises a frame 33 said frame 33 comprising respectively one part of a collar 34 that accommodates in connection with a second part 35 of the collar the pitch bearing journal 41 of the pitch bearing 38 in the form of a so called sliding bearing that is to say that the pitch bearing journals glide in the opening formed by the collar these pitch bearing journals 41 are further disposed on either side of the roll joint housing 45 of the roll joint 40 and ensure that the vehicle is capable of yielding to the movements generated when travelling through hollows or over hilltops as is actually known as already explained the two bearing journals 41 are located on the roll joint housing 45 in the housing.