| 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: | | | | |
| 8483.40.10 | 00 | Torque converters | No. | Free | | 27.5% |
| 8483.40.30 | | Gear boxes and other speed changers: | | | | |
| 8483.40.30 | | Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation: | | | | |
| 8483.40.30 | | Imported for use with machines for making cellulosic pulp, paper or paperboard | | Free | | 27.5% |
| 8483.40.30 | 40 | Fixed ratio speed changers | No. | | | |
| 8483.40.30 | 80 | Other | No. | | | |
| 8483.40.50 | | Other | | 2.5% | Free (A,AU,BH,C, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 27.5% |
| 8483.40.50 | 10 | Fixed ratio speed changers | No. | | | |
| 8483.40.50 | 50 | Other | No. | | | |
| 8483.40.70 | 00 | Other speed changers | No. | 25￠/each + 3.9% | Free (A,AU,BH,C, CA,CL,E,IL,J,JO, MA,MX,P,SG) | $4.50 each + 65% |
| 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% |
| 8483.40.90 | 00 | Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately | X | 2.5% | Free (A,AU,B,BH, C,CA,CL,E,IL,J, JO,MA,MX,P, SG) | 27.5% |
