8483.40: 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

1. 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
2. Gears and gearing (other than friction gears)
3. 8483 40 21 00 Spur and helical
4. 8483 40 21 10 For use in civil aircraft Free
5. 8483 40 21 90 Other Free
6. 8483 40 23 00 Bevel and bevel/spur
7. 8483 40 23 10 For use in civil aircraft Free
8. 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 Free
9. 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 Free
10. 8483 40 23 90 Other Free
11. 8483 40 25 00 Worm gear
12. 8483 40 25 10 For use in civil aircraft Free
13. 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 Free
14. 8483 40 25 90 Other Free
15. 8483 40 29 00 Other
16. 8483 40 29 10 For use in civil aircraft Free
17. Other
18. 8483 40 29 50 Gear set of cycloid gear type with: - a rated torque of 50 nm or more but not more than 9 000 nm, - standard ratios of 1:50 or more but not more than 1:475, - lost motion of not more than one arc minute, - an efficiency of more than 80% of a kind used in robot arms Free
19. 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 Free
20. 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 Free
21. 8483 40 29 89 Other Free
22. 8483 40 30 00 Ball or roller screws
23. 8483 40 30 10 For use in civil aircraft Free
24. 8483 40 30 90 Other Free
25. Gear boxes and other speed changers
26. 8483 40 51 00 Gear boxes
27. 8483 40 51 10 For use in civil aircraft Free
28. 8483 40 51 90 Other Free
29. 8483 40 59 00 Other
30. 8483 40 59 10 For use in civil aircraft Free
31. 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 Free
32. 8483 40 59 90 Other Free
33. 8483 40 90 00 Other
34. 8483 40 90 10 For use in civil aircraft Free
35. 8483 40 90 80 Transmission gearbox, with: - not more than 3 gears, - an automatic deceleration system and - a power reversal system, for use in the manufacture of goods of heading 8427 Free
36. 8483 40 90 99 Other Free

Additional duties and import rules

Charges on top of the customs duty, and rules the goods must meet at the border.

Preferential rates by country

UK: imports by month

last 12 months£454.6m+3% · previous 12 months

Average import price£20.51 per kg

Main suppliers, last 12 months

Country	Value	Share	Change
Germany	£95.4m	21%	-20%
Italy	£95.2m	20.9%	+36.5%
United States	£39.9m	8.8%	+9.6%
United Kingdom	£29.8m	6.5%	+30.7%
India	£27.8m	6.1%	+60.6%
Poland	£24.2m	5.3%	+0%
France	£21.6m	4.8%	-20.3%
Hungary	£20m	4.4%	-11.1%

Same subheading in other tariffs

EU 3.7% Third-country duty 8 tariff lines Türkiye Free – 3.7% Third-country duty 18 tariff lines · average 2.1% USA Free – 3.8% General (MFN) 6 tariff lines · average 1.8% · 1× specific or compound duty Canada Free General (MFN) 7 tariff lines Mexico Free General (MFN) 8 tariff lines Brazil 12.6% General (MFN) 2 tariff lines Argentina 12.6% General (MFN) 9 tariff lines Peru Free General (MFN) 4 tariff lines New Zealand Free – 5% General (MFN) 6 tariff lines · average 3% · 1× specific or compound duty Japan Free General (MFN) 2 tariff lines Taiwan 2.5% – 10% General (MFN) 5 tariff lines · average 5.4% GCC 5% General (MFN) 7 tariff lines Switzerland Free General (MFN) 1 tariff line Norway Free General (MFN) 2 tariff lines North Macedonia 3.7% – 8% General (MFN) 8 tariff lines · average 6.1% Nigeria 10% General (MFN) 1 tariff line

World trade in 2024

Top exporters

Rank	Country	Value	Share
1	Germany	US$3.4bn	16.4%
2	China	US$3.3bn	15.7%
3	United States	US$2.2bn	10.5%
4	Italy	US$2.1bn	9.8%
5	Japan	US$1.5bn	7%
6	Taiwan	US$1bn	4.9%
7	India	US$1bn	4.9%
8	France	US$562.4m	2.7%
9	Poland	US$527m	2.5%
10	Belgium	US$483.5m	2.3%

Top importers

Rank	Country	Value	Share
1	United States	US$3.7bn	17.8%
2	China	US$1.8bn	8.7%
3	Germany	US$1.5bn	7.2%
4	Canada	US$1bn	4.9%
5	Mexico	US$833.5m	4%
6	Brazil	US$718.5m	3.4%
7	Italy	US$699.4m	3.3%
8	India	US$680.1m	3.2%
9	France	US$650.6m	3.1%
10	United Kingdom	US$541.9m	2.6%

Import duty on this product around the world 165

The most-favoured-nation (MFN) duty each country applies to goods of this HS subheading: the average over its national tariff lines, with the lowest and highest line where they differ. Goods from countries with a trade agreement often pay less.

• 5%median duty
• 39number of duty-free countries (MFN)
• 45%highest: Bahamas, Bermuda, Pakistan

165

Importing country	MFN duty	lines from – to	data year
Afghanistan	5%		2018 · HS 2012
Albania	0%		2023
Algeria	15%		2023
Angola	0%		2023 · HS 2017
Anguilla	15%	0% – 20%	2021 · HS 2017
Antigua & Barbuda	11%	5% – 30%	2021 · HS 2007
Argentina	14%		2023 · HS 2017
Armenia	2.7%	0% – 5%	2023
Aruba	12%		2021 · HS 2012
Australia	5%		2023
Azerbaijan	0%		2023 · HS 2017
Bahamas	45%		2022
Bahrain	5%		2023
Bangladesh	1%		2023 · HS 2017
Barbados	6.3%	5% – 10%	2022 · HS 2017
Belarus	2.7%	0% – 5%	2021 · HS 2017
Belize	6.3%	5% – 10%	2023
Benin	10%		2023
Bermuda	35%		2023
Bhutan	10%		2022
Bolivia	7.5%	5% – 10%	2023 · HS 2017
Bosnia & Herzegovina	2.5%	0% – 5%	2022
Botswana	0%		2023
Brazil	14%		2023 · HS 2017
Brunei	0%		2023 · HS 2017
Burkina Faso	10%		2023
Burundi	10%		2023
Cambodia	15%		2023 · HS 2017
Cameroon	10%		2023
Canada	0%		2023
Cape Verde	10%	0% – 20%	2023 · HS 2017
Cayman Islands	27%		2021 · HS 2002
Central African Republic	10%		2023
Chad	10%		2023
Chile	6%		2023 · HS 2017
China	8%		2023
Colombia	1.3%	0% – 5%	2023 · HS 2017
Comoros	20%		2021 · HS 2017
Congo - Brazzaville	10%		2023
Cook Islands	0%		2022 · HS 2017
Costa Rica	0%		2023
Côte d’Ivoire	10%		2023 · HS 2017
Cuba	10%		2023 · HS 2017
Dominica	6.3%	5% – 10%	2023 · HS 2017
Dominican Republic	0%		2023
Ecuador	0%		2023 · HS 2017
Egypt	5%	0% – 10%	2019 · HS 2017
El Salvador	0%		2022
Equatorial Guinea	10%		2023
Eswatini	0%		2023
Ethiopia	20%		2021 · HS 2017
European Union (27 countries)	3.7%		2023
Fiji	0%		2023
French Polynesia	13%		2023
Gabon	10%		2023
Gambia	10%		2023
Georgia	0%		2022 · HS 2017
Ghana	10%		2023
Gibraltar	12%		2023 · HS 2017
Grenada	6.3%	5% – 10%	2023 · HS 2012
Guatemala	0%		2023
Guinea	10%		2023
Guinea-Bissau	10%		2023
Guyana	6.3%	5% – 10%	2023 · HS 2017
Haiti	5%		2020 · HS 2017
Honduras	0%		2023
Hong Kong SAR China	0%		2023
Iceland	0%		2023
India	7.5%		2023
Indonesia	5%		2023
Iran	10%		2020 · HS 2017
Israel	6.5%	0% – 10%	2022 · HS 2017
Jamaica	5%	0% – 20%	2023
Japan	0%		2023
Jordan	2.5%	0% – 5%	2023
Kazakhstan	0.9%	0% – 5%	2023
Kenya	10%		2023
Kiribati	0%		2023 · HS 2002
Kuwait	5%		2023
Kyrgyzstan	2.7%	0% – 5%	2021 · HS 2017
Laos	5%		2023 · HS 2017
Lebanon	5%		2020 · HS 2017
Lesotho	0%		2023
Liberia	10%		2023
Libya	5%		2021 · HS 2017
Liechtenstein	1.1%*	0.5% – 1.7%	2021 · HS 2017
Macao SAR China	0%		2023
Madagascar	10%		2023
Malawi	6.3%	0% – 25%	2021 · HS 2017
Malaysia	5%		2023
Maldives	23%	0% – 50%	2023
Mali	10%		2023
Mauritania	10%		2023 · HS 2017
Mauritius	0%		2023
Mexico	0%		2023 · HS 2017
Micronesia	4%		2021 · HS 2017
Moldova	5%		2023 · HS 2017
Mongolia	5%		2023
Montserrat	8.8%	5% – 20%	2023 · HS 2017
Morocco	2.5%		2023
Mozambique	7.5%		2023
Myanmar (Burma)	3%		2023 · HS 2017
Namibia	0%		2023
Nauru	10%		2021 · HS 2017
Nepal	15%		2023
New Zealand	5%		2023
Nicaragua	0%		2023
Niger	10%		2023
Nigeria	10%		2023
North Macedonia	8%		2023
Norway	0%		2023
Oman	5%		2023
Pakistan	31%	20% – 35%	2023
Palau	3%		2023 · HS 2012
Palestinian Territories	6.5%	0% – 10%	2017 · HS 2017
Panama	0%		2023
Papua New Guinea	0%		2023
Paraguay	0%		2023 · HS 2017
Peru	0%		2023 · HS 2017
Philippines	0.4%	0% – 1%	2023
Qatar	5%		2023
Russia	2.7%	0% – 5%	2021 · HS 2017
Rwanda	10%		2023
Samoa	20%		2020 · HS 2017
São Tomé & Príncipe	10%		2019 · HS 2017
Saudi Arabia	10%		2023
Senegal	10%		2023
Seychelles	0%		2023
Sierra Leone	10%		2023
Singapore	0%		2023 · HS 2017
Solomon Islands	10%		2023 · HS 2017
Somalia	15%		2023 · HS 2017
South Africa	0%		2023
South Korea	6.8%	3% – 8%	2023
Sri Lanka	0%		2023
St Kitts & Nevis	10%	5% – 25%	2023
St Lucia	2.5%	0% – 10%	2023 · HS 2012
St Pierre & Miquelon	5%		2021 · HS 2017
St Vincent & the Grenadines	6.3%	5% – 10%	2023
Sudan	10%		2021 · HS 2017
Suriname	5%		2023 · HS 2007
Switzerland	0.8%*	0.4% – 1.2%	2023
Syria	5.5%	1% – 10%	2020 · HS 2012
Tajikistan	4.1%	0% – 5%	2021 · HS 2012
Tanzania	10%		2023
Thailand	5%		2023
Togo	10%		2023
Tonga	15%		2023 · HS 2017
Trinidad & Tobago	5%	0% – 20%	2023 · HS 2012
Türkiye	3.6%	0% – 11%	2023
Tuvalu	0%		2017 · HS 2017
Uganda	10%		2023
Ukraine	0%		2023 · HS 2017
United Arab Emirates	5%		2023
United Kingdom	0%		2023
United States	1.8%	0% – 3.8%	2023
Uruguay	14%		2023 · HS 2017
Uzbekistan	0%		2021 · HS 2017
Vanuatu	10%		2023
Venezuela	14%		2023 · HS 2017
Vietnam	11%	10% – 15%	2023
Wallis & Futuna	10%		2021 · HS 2012
Yemen	5%		2017 · HS 2017
Zambia	15%		2023
Zimbabwe	0.1%	0% – 0.1%	2023

Tariff data years 2017–2023; rates may have changed since. * ad valorem equivalent of specific duties (UNCTAD estimate) · UNCTAD TRAINS, accessed via WITS (World Bank)

Classifications and correspondences

Where this HS subheading sits in the United Nations' statistical classifications, and which codes it had in earlier editions of the Harmonized System.

SITC Rev. 4

7484 Gears & gearing, other than toothed wheels, chain sprockets & other transmission elements presented separately; ball/roller screws; gear boxes & other speed changers, including torque converters

End use (BEC Rev. 5)

Intermediate goods · BEC 511220

CPC 2.1 product

43320 Transmission shafts and cranks; bearing housings and plain shaft bearings; gears and gearing; ball or roller screws, gear boxes and other speed changers; flywheels and pulleys; clutches and shaft couplings; articulated link chain

ISIC Rev. 4 activity

2814 Manufacture of bearings, gears, gearing and driving elements

Earlier HS editions

Correspondence tables of the United Nations Statistics Division (UNSD)

Binding rulings for similar goods 13

Recent rule changes mentioning this code

Acts whose text cites this code or its heading. Check the act itself: a code can be cited for reasons other than a change of its duty.

1. Tariff change 29 September 2026

   UK Trade Tariff: measure changes on 1015 commodity codes

   Trade Tariff changes 2026-09-29 · Source: trade-tariff.service.gov.uk

2. Import and export controls 20 July 2026

   Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation

   FR Doc. 2026-14542 · 91 FR 45516 · Source: federalregister.gov

3. Tariff change 22 June 2026 · Applies from: 1 July 2026

   Harmonized Tariff Schedule of the United States — 2026 HTS Revision 11

   2026HTSRev11 · Source: hts.usitc.gov

4. Tariff change 4 June 2026

   Notice of Determination and Request for Comments Concerning Action Pursuant to Section 301: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation

   FR Doc. 2026-11158 · 91 FR 33854 · Source: federalregister.gov

5. Tariff change 28 May 2026

   Implementing Certain Tariff-Related Elements of a Trade and Security Agreement Between the American Institute in Taiwan and the Taipei Economic and Cultural Representative Office in the United States

   FR Doc. 2026-10571 · 91 FR 31818 · Source: federalregister.gov

6. Sanctions 23 April 2026 · Applies from: 22 April 2026

   Council Regulation (EU) 2026/506 of 23 April 2026 amending Regulation (EU) No 833/2014 concerning restrictive measures in view of Russia’s actions destabilising the situation in Ukraine

   CELEX 32026R0506 · Source: eur-lex.europa.eu

Rule changes →

Products classified here

• worm gear
• ballscrews
• gear boxes
• spur gears
• bevel gears
• helical gears
• friction gears
• torque converters
• friction cone couplings
• friction disc couplings
• variable speed fluid couplings
• gears other than toothed wheels

Questions and answers

Typical products

• ballscrews
• bevel gears
• friction cone couplings
• friction disc couplings
• friction gears
• gear boxes
• gears other than toothed wheels
• helical gears
• spur gears
• torque converters
• variable speed fluid couplings
• worm gear

Everyday names, not part of the legal text.