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Rail

Steel profile constituting the track, which represents the fixed element of the kinematic pair necessary for the motion of the rolling stock; has the function of supporting the weight and driving the wheels of railway vehicles. The section of a rail can be subdivided into three basic parts: the mushroom, bounded by the rolling surface and by the side edges, able to guide the rims of the wheels; the shank, in which, when necessary, the holes are made at the junction points between adjacent rails; the sole, which rests on the crossbar, on which the anchorage of the rail is fixed to the crossbar itself. In addition to the shape, the rail is characterized by the weight per meter of length

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WikiRail

WikiRail