Classification Detail

This class includes manufacture of ball and roller bearings including balls, needles, rollers, races, retaining rings and other parts of bearings. Manufacture of mechanical power transmission equipment of any material: cam shafts, crank shafts, cranks; transmission shafts; bearing housings, pillow blocks; plain shaft and other bearing housings; gears and gearing including friction gears; gear boxes and other variable speed drives; clutches including automatic centrifugal clutches and compressed air clutches; flywheels, shaft couplings. Manufacture of articulated link chain. Exclusions: Manufacture of electro-magnetic clutches is classified in class 3190 (Manufacture of other electrical equipment n.e.c.). Manufacture of sub-assemblies of power transmission equipment identifiable as parts of vehicles or aircraft is classified in the appropriate class of division 34 (Manufacture of motor vehicles, trailers and semi-trailers) and 35 (Manufacture of other transport equipment), respectively.