• Classificacions estadístiques
• CUCI-REV.3 (en)
• Grups

748 — Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings and plain shaft bearings; gears and gearing; ball screws; gearboxes and other speed changers (including torque converters); flywheels and pulleys (including pulley bloc...