FIELD: transport.
SUBSTANCE: invention relates to railroad transport. Rolling stock "wheel-rail" contact area lubrication system uses ferromagnetic fluid as lubricant or lubricant-coolant. Proposed method consists in incorporating the system of electromagnets with the set of hardware for lubricant feed into said contact area and fitting said system at the train last car to catch lubrication products from rail surface to be returned to device service member.
EFFECT: multiple use, ruled out contamination of environments.
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