Ключевые слова: automobile, background, bearing, black, car, closeup, cog, complex, concept, crank, engine, engineering, equipment, frame, full, gearbox, gears, geometrical, geometry, hammer, horizontal, industry, iron, joint flange, main shaft, manufacturing, mechanical, metal, metallic, motor, nobody, parts, shaft, shape, shiny, stainless, steel, technical, technology, teeth, tool, transmission main shaft, up, vehicle,