Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 83 Transmission shafts and cranks; bearing housings; gears...; flywheels... 84 83 40 Gears and gearing; ball or roller screws; gear boxes and other speed changers... Commodity Code Description 84 83 40 00 Gears and gearing; ball or roller screws; gear boxes and other speed changers... 84 83 40 20 For marine vessels 84 83 40 30 For machinery of heading 84.29 or 84.30 84 83 40 40 For vehicles of Chapter 87 84 83 40 90 Other
