Ключевые слова: axle, bearings, closeup, component, depot, detail, diameter, element, heavy, heavy industry, heavy machinery, industrial, industry, iron, iron wheels, manufacture, many, metal, metallic, mounting, new wheels, old, outdoor, part, production, rail, railroad, rails, railway, railway carriage, railway wheel, railway wheels, repair, rolling, rust, rusty, rusty wheelsets, set, spare, steel, train, train wheel, transport, transportation, wagon, wheel, wheel axle, wheels, wheelset,