| 8483 |  | Transmission 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: |  |  |  |  | 
| 8483.10.10 |  | Designed for use solely or principally with spark-ignition internal combustion piston engines or rotary engines |  | 2.5% | Free (A,AU,B,BH, C,CA,CL,E,IL,J, JO,MA,MX,P, SG) | 35% | 
| 8483.20 |  | Housed bearings, incorporating ball or roller bearings: |  |  |  |  | 
| 8483.20.40 | 40 | Incorporating ball bearings | No. |  |  |  | 
| 8483.20.80 | 40 | Incorporating ball bearings | No. |  |  |  | 
| 8483.30.40 | 40 | Ball or roller bearing type | kg |  |  |  | 
| 8483.30.80 | 20 | Ball or roller bearing type | kg |  |  |  | 
| 8483.30.80 | 70 | Spherical | No. kg |  |  |  | 
| 8483.40 |  | Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately; ball or roller screws; gear boxes and other speed changers, including torque  converters: |  |  |  |  | 
| 8483.40.30 |  | Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation: |  |  |  |  | 
| 8483.40.80 | 00 | Ball or roller screws | X | 3.8% | Free (A,AU,B,BH, C,CA,CL,E,IL,J, JO,MA,MX,P, SG) | 45% | 
| 8483.60 |  | Clutches and shaft couplings (including universal joints): |  |  |  |  | 
| 8483.60.40 |  | Clutches and universal joints |  | 2.8% | Free (A,AU,B,BH, C,CA,CL,E,IL,J, JO,MA,MX,P, SG) | 45% | 
| 8483.60.40 | 80 | Universal joints | No. |  |  |  | 
| 8483.90.80 | 40 | Parts of universal joints | X |  |  |  | 
| 8484 |  | Gaskets and similar joints of metal sheeting combined with other material or of two or more layers of metal; sets or assortments of gaskets and similar joints, dissimilar in composition, put up in pouches, envelopes or similar packings; mechanical seals: |  |  |  |  | 
| 8484.10.00 | 00 | Gaskets and similar joints of metal sheeting combined with other material or of two or more layers of metal | X | 2.5% | Free (A,AU,B,BH, C,CA,CL,E,IL,J, JO,MA,MX,P, SG) | 35% | 
| 8484.20.00 | 00 | Mechanical seals | No. | 3.9% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 45% | 
| 8486 |  | Machines and apparatus of a kind used solely or principally for the manufacture of semiconductor boules or wafers, semiconductor devices, electronic integrated circuits or flat panel displays; machines and apparatus specified in Note 9 (C) to this chapter; parts and accessories: |  |  |  |  | 
| 8487 |  | Machinery parts, not containing electrical connectors, insulators, coils, contacts or other electrical features, and not specified or included elsewhere in this chapter: |  |  |  |  | 
| 8487.90.00 | 40 | Oil seals, other than those of chapter 40 | kg |  |  |  | 
| 8501.10.20 | 00 | Synchronous, valued not over $4 each | No. | 6.7% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 90% | 
| 8501.20 |  | Universal AC/DC motors of an output exceeding 37.5 W: |  |  |  |  | 
| 8501.32.45 | 00 | Electric motors of a kind used as the primary source of mechanical power for electrically powered vehicles of subheading 8703.90 | No. | Free |  | 35% | 
| 8501.61.00 | 00 | AC generators (alternators): |  |  |  |  |