Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
8483.40.80.00Tariff 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
Ball or roller screws
8483.40.80.00
Rates of duty
General rate (Column 1)3.8%
SpecialFree (A*, AU, B, BH, C, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 245%
UnitNo.
Free (A*, AU, B, 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 3.8%
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 1 (9903.88.01)9903.88.01Applies+25%8-digit subheading 8483.40.80 is on L1
Confirmed total 41.3% · max 41.3%Full duty breakdown →