Chapter 84 · Machinery and mechanical appliances; computers · Section 16
HS Code 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
Heading 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
US duty (general)
Free - 3.8% +
US HTS lines
6
EU CN codes
9
UK commodity codes
33
Unit
No.
US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 8483.40
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 8483.40.10 | Torque converters | Free | - | 27.5% | No. |
| 8483.40.30 |
Gear boxes and other speed changers > Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Imported for use with machines for making cellulosic pulp, paper or paperboard 2 statistical lines (10-digit)
|
Free | - | 27.5% | No. |
| 8483.40.50 |
Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Imported for use with machines for making cellulosic pulp, paper or paperboard > Other 3 statistical lines (10-digit)
|
2.5% | Free (A*,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 27.5% | No. |
| 8483.40.70 |
Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Other > Other speed changers |
25¢ each + 3.9% | Free (A*,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | $4.50 each + 65% | No. |
| 8483.40.80 |
Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Other > Ball or roller screws |
3.8% | Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | No. |
| 8483.40.90 |
Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual manipulation > Other > Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately |
2.5% | Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 27.5% | No. |
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Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 8483.40
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 8483 40 21 | Spur and helical | EU duty (TARIC) → |
| 8483 40 51 | Gear boxes | EU duty (TARIC) → |
| 8483 40 59 | Other | EU duty (TARIC) → |
| 8483 40 25 | Worm gear | EU duty (TARIC) → |
| 8483 40 29 | Other | EU duty (TARIC) → |
| 8483 40 23 | Bevel and bevel/spur | EU duty (TARIC) → |
| 8483 40 30 | Ball or roller screws | EU duty (TARIC) → |
| 8483 40 90 | Other | EU duty (TARIC) → |
| 8483 40 00 | Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements presented separately; ball or roller screws; gear boxes and other speed changers, including torque converters | EU duty (TARIC) → |
United Kingdom - commodity codes under 8483.40
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 8483 40 00 00 | Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements presented separately; ball or roller screws; gear boxes and other speed changers, including torque converters | UK duty & VAT → |
| 8483 40 21 00 | Spur and helical | UK duty & VAT → |
| 8483 40 21 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 21 90 | Other | UK duty & VAT → |
| 8483 40 23 00 | Bevel and bevel/spur | UK duty & VAT → |
| 8483 40 23 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 23 20 | Bevel gear: -made of lightweight alloys and steel, -built on straight or helical bevel gears, -with an angle between the shafts of 30 degrees or more but not more than 90 degrees -with a gear 1:1,3 ratio or more but not more than 1:1,46, for use in the manufacture of grass trimmers, brushcutters and other types of garden machinery | UK duty & VAT → |
| 8483 40 23 30 | Bevel gear: -made of lightweight alloys and steel, -built on straight bevel gears, -with an angle between the shafts of 24 degrees or more but not more than 35 degrees, for use in the manufacture of grass trimmers, brushcutters and other types of garden machinery | UK duty & VAT → |
| 8483 40 23 90 | Other | UK duty & VAT → |
| 8483 40 25 00 | Worm gear | UK duty & VAT → |
| 8483 40 25 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 25 20 | Worm gearbox -in an aluminium alloy housing, -with a plastic or steel worm, -with mounting holes, -with a 90 degree reversible drive direction, -with a 4:19 transmission ratio, -equipped with a lead screw with a length of 310 mm or more but not more than 380 mm, -with a guide nut incorporated into the assembly bracket, -with or without a lead screw support, for indirect connection to the drive motor of a car seat guide system | UK duty & VAT → |
| 8483 40 25 90 | Other | UK duty & VAT → |
| 8483 40 29 00 | Other | UK duty & VAT → |
| 8483 40 29 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 29 50 | Gear set of cycloid gear type with:<br>- a rated torque of 50 Nm or more but not more than 9 000 Nm,<br>- standard ratios of 1:50 or more but not more than 1:475,<br>- lost motion of not more than one arc minute,<br>- an efficiency of more than 80 %<br>of a kind used in robot arms<br> | UK duty & VAT → |
| 8483 40 29 60 | Epicyclic gearing, of a kind used in driving hand-held power tools with: -|a rated torque of 25|Nm or more, but not more than 70|Nm, -|standard gear ratios of 1:12.7|or more, but not more than 1:65.3 | UK duty & VAT → |
| 8483 40 29 70 | Cast steel planetary cage, with: -external or internal toothing in a diametral pitch standard, -27 teeth or more, but not more than 70 teeth, -a diameter of 300 mm or more, but not more than 725 mm, -a length of 225 mm or more, but not more than 800 mm, -3 or 4 planetary gears, -a hardness of 40 HRC or more, but not more than 45 HRC | UK duty & VAT → |
| 8483 40 29 89 | Other | UK duty & VAT → |
| 8483 40 30 00 | Ball or roller screws | UK duty & VAT → |
| 8483 40 30 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 30 90 | Other | UK duty & VAT → |
| 8483 40 51 00 | Gear boxes | UK duty & VAT → |
| 8483 40 51 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 51 90 | Other | UK duty & VAT → |
| 8483 40 59 00 | Other | UK duty & VAT → |
| 8483 40 59 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 59 30 | Hydrostatic speed changer: -with a hydro pump and a differential with wheel axle, -whether or not with a fan impeller and/or a pulley, for use in the manufacture of lawn mowers of subheadings 8433 11 and 8433 19 or other mowers of subheading 8433 20 | UK duty & VAT → |
| 8483 40 59 90 | Other | UK duty & VAT → |
| 8483 40 90 00 | Other | UK duty & VAT → |
| 8483 40 90 10 | For use in civil aircraft | UK duty & VAT → |
| 8483 40 90 80 | Transmission gearbox, with: <br><br><br>- not more than 3 gears, <br> <br><br><br>- an automatic deceleration system and <br> <br><br><br>- a power reversal system, <br>for use in the manufacture of goods of heading 8427 | UK duty & VAT → |
| 8483 40 90 99 | Other | UK duty & VAT → |
Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).
Other subheadings in 8483
8483.00 8483 Transmission shafts (including cam shafts and crank shafts) and cranks; bearing housi
8483.10 Transmission shafts (including camshafts and crankshafts) and cranks
8483.20 Housed bearings, incorporating ball or roller bearings
8483.30 Bearing housings; plain shaft bearings
8483.40 Gears and gearing, other than toothed wheels, chain sprockets and other transmission eleme
8483.50 Flywheels and pulleys, including pulley blocks
8483.60 Clutches and shaft couplings (including universal joints)
8483.90 Toothed wheels, chain sprockets and other transmission elements presented separately; part
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.