The present invention relates to a railway wagon comprising a load carrier and front and rear bogies. The load carrier is releasably connected to, and laterally displaceable in relation to, the respective bogies. Supporting devices are mounted at the ends of the load carrier. They support the load carrier when it is displaced in relation to the bogie. Each supporting device comprises an abutment device which is vertically operable between a pulled-up position and an extended position. At each end of the load carrier there is also a displacing driving device for displacing the load carrier relative to the bogie, and a device that counteracts tilting tendencies of the load carrier. Each abutment device comprises a sliding member, which can slide on the base in the extended position. The railway wagon can thus be displaced, for instance pivoted outwards at one end, to allow a truck to be driven on to or off the same.