2815 Manufacture of bearings, gears, gearing and driving elements

281510 Ball or roller bearings 281521 Articulated link chain, of iron or steel 281522 Transmission shafts (including cam and crank shafts) and cranks 281523 Bearing housings and plain shaft bearings 281524 Gears and gearing/ ball or roller screws/ gear boxes and other speed changers 281525 Flywheels and pulleys including pulley blocks 281526 Clutches and shaft couplings including universal joints 281531 Balls, needles and rollers/ parts of ball or roller bearings 281532 Parts of articulated link chain of iron or steel 281539 Parts of bearing and driving elements n.e.c.