Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
8483.40.70.00Tariff line
Classification path
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
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
Gear boxes and other speed changers
Other speed changers
8483.40.70.00
Rates of duty
General rate (Column 1)25¢ each + 3.9%
SpecialFree (A*, AU, BH, C, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 2$4.50 each + 65%
UnitNo.
Free (A*, AU, BH, C, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 2858
Measure flags
for origin CN, entry date 2026-10-26 · base rate 25¢ each + 3.9%
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 8483.40.70 is on L3
Confirmed total 41.4% · max 41.4%Full duty breakdown →