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Individual vehicle bodies in many modern rail vehicles are connected by passages that enable the passengers to move freely from one railcar to the next. The vehicle bodies are connected using maintenance-free ELGOGLIDE® spherical plain bearings or rod ends.
These bearings combine high load carrying capacities in extreme loading situations (e.g. buffer impact loads in accordance with VDV152 or EN12663) with small bearing dimensions, low bearing friction and long operating life.
Upper Center Joint
The upper center joints connect the vehicle bodies in the roof. The bearings facilitate the required turning and tilting motions and longitudinal tilts when cornering and traveling uphill and downhill. Maintenance-free radial spherical plain bearings and rod ends are used.
Lower Center Joint
The lower center joints connect the vehicle bodies in the floor area of the vehicle. The bearings facilitate the required turning and tilting motions and longitudinal tilts when cornering and traveling uphill and downhill and the horizontal position of the track beds and transfer all acceleration forces between the vehicle bodies. In low floor vehicles, they also support the weight of the overlying railcar body (sedan).
Angular contact spherical plain bearings or thrust spherical plain bearings are used for the main bearing support or for the lift-off protector.