84839081 (01/2006-..) Toothed wheels, chain sprockets and other transmission elements presented separately and parts of transmission shafts and cranks, bearing housings and plain shaft bearings, gears and gearing, ball or roller screws, gear boxes and other speed changers, flywheels and pulleys, clutches and shaft couplings, of cast iron or cast steel, n.e.s.

Source: Eurostat, Luxembourg