8483Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof:
8483.90Toothed wheels, chain sprockets and other transmission elements presented separately; parts:
8483.90.50Parts of gearing, gear boxes and other speed changers