FIELD: transport.
SUBSTANCE: invention relates to railway transport, particularly, to railway freight cars. Proposed adapter has horizontal and vertical contact surfaces to interact with horizontal and vertical contact surfaces of bearing assembly. Said bearing assembly is mounted in bogie frame axle box aperture. At least, one of adapter contact surfaces features cylindrical shape. Adapter is retained in axle aperture by arrester. At least, one on said cylindrical contact surfaces features radius making 0.85-1.2 of bogie centres. Note here that bogie centres represent distance between centres of side frame aperture for bearing assemblies.
EFFECT: decreased stresses at contact surfaces and wear.
3 cl, 2 dwg
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