FIELD: railway rolling stock. SUBSTANCE: sides of truck frames have forked ends forming rectangular apertures in which wheels are placed. Axles of wheels are fastened in forked ends by means of axle boxes. Sides are tied up at ends by studs. Axle box bodies are embraced by shoes engaging with rectangular aperture of sides and provided with vertically arranged spherical surfaces engaging with spherical surfaces on surface of axle boxes. EFFECT: enlarged operating capabilities. 8 dwg
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