China HS → US HTS
China HS 8483.4010 (滚子螺杆传动装置): US HTS candidates & duty rates
China tariff line for "滚子螺杆传动装置" shares the international HS6 anchor 848340 with 12 US HTS candidates below. Compare descriptions, then calculate landed duty.
Updated
China HS 8483.4010 most commonly maps to US HTS 8483.40.30. Total duty rate from China (MFN + Chapter 99 overlays): about 25%. Verify the description before filing.
China tariff line facts
| China HS line | 8483.4010 |
|---|---|
| Description | 滚子螺杆传动装置 |
| Category path | 传动轴（包括凸轮轴及曲柄轴） 及曲柄；轴承座及滑动轴承；齿 轮及齿轮传动装置；滚珠或滚子 螺杆传动装置；齿轮箱及其他变 速装置，包括扭矩变换器；飞轮 及滑轮，包括滑轮组；离合器及 联轴器（包括万向节） > 齿轮及齿轮传动装置，但单独进 > 滚子螺杆传动装置 |
| Shared HS6 | 848340 |
| China MFN rate (reference) | 8 |
| Schedule version | 2026 |
US HTS candidates (12)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 8483.40.30 | Imported for use with machines for making cellulosic pulp, paper or paperboard | Free | 25% |
| 8483.40.50 | Other | 2.5% | 52.50% |
| 8483.40.10.00 | Torque converters | Free | 25% |
| 8483.40.30.40 | Fixed ratio speed changers | Free | 25% |
| 8483.40.50.10 | Fixed ratio speed changers | 2.5% | 52.50% |
| 8483.40.50.20 | Gear boxes and speed changers for wind turbines, as described in statistical note 6 to this chapter | 2.5% | 52.50% |
| 8483.40.70.00 | Other speed changers | 25¢ each + 3.9% | 53.90% |
| 8483.40.80.00 | Ball or roller screws | 3.8% | 28.80% |
| 8483.40.90.00 | Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately | 2.5% | 27.50% |
| 8483.40.30.80 | Other | Free | 25% |
| 8483.40.50.80 | Other | 2.5% | 52.50% |
| 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: | — | — |
Total = MFN base + Section 301 / IEEPA / reciprocal overlays active for China origin. AD/CVD not included.
Frequently asked questions
Which US HTS code corresponds to China HS 8483.4010?
There is no one-to-one mapping: only the first six digits (HS6 848340) are shared internationally. Under this anchor the US schedule has 12 candidate lines; the most common is 8483.40.30. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "滚子螺杆传动装置" from China?
Using the leading candidate 8483.40.30, the total rate from China is about 25% — MFN base plus the Chapter 99 overlays (Section 301 / IEEPA / reciprocal) active for China origin. Other candidates may differ, so verify classification first.
Why is China HS8 not identical to US HTS8?
The WCO Harmonized System is only agreed to six digits. China extends HS6 to 8/10-digit national lines for its own tariffs and statistics, and the US does the same with HTS8/HTS10 — the extensions are independent, so codes must be bridged via HS6.
How do I confirm the final HTS classification?
Compare the US line descriptions against your product facts, check CBP rulings for similar goods, and when in doubt request a binding ruling. The bridge tool lets you re-run this query and compare all candidates side by side.