The utility model belongs to the technical field of the bogie system, concretely relates to be applied to slider that becomes gauge bogie, slider are the tube -shape body, are connected through bearing axial fixity between the axial sliding connection between external lateral wall of tube -shape and the axle box, inside wall and bearing mount pad, and be provided with restricted rotation's restriction portion on the lateral wall. The utility model discloses a: when passing through the railway of different gauges to the train, there is the problem that conveying efficiency is low, provides a slider, make the wheel adjustable in the axial for the axletree to realize the railway of wheel pair track in order to adapt to different gauges of transform bogie. The railway transportation of " silkroad economy -zone " is develoied, the problem that railway gauge is ununified must be faced. And it is ununified to solve the railway gauge specification, and the most economic, a most effective method is equipped with variable gauge bogie for the train. Consequently, the design of, developing variable gauge bogie system has very important and the profound significance.