Ключевые слова: bearing, bicycle, bike, cassette, chain, circle, cog, cogwheel, connection, cycle, detail, drive, engineering, equipment, gear, gearwheel, group, helical, hob, industrial, industry, iron, isolated, link, machine, measuring, mechanic, mechanical, mechanism, metal, metallic, part, power, red, repair, round, set, solid, spark, sport, sprocket, steel, technology, throw, transmission, vehicle, wheel, white, work,