Subheading · Chapter 84 · Heading 8483
8483.60: Clutches and shaft couplings (including universal joints)
Clutches and shaft couplings
8483.60 is the HS subheading for clutches and shaft couplings, under heading 8483 in chapter 84.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 8483 60 00 00 Clutches and shaft couplings (including universal joints)
- 8483 60 20 00 Of cast iron or cast steel
- 8483 60 20 10 For use in civil aircraft Free
- 8483 60 20 90 Other Free
- 8483 60 80 00 Other
- 8483 60 80 10 For use in civil aircraft Free
- 8483 60 80 20 Overrunning clutch for passenger car and commercial vehicle starter motors with: -a total length of 49.4 mm or more but not more than 210 mm, -a starter motor pinion with 9 or more but not more than 16 teeth Free
- 8483 60 80 90 Other Free
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 3
- Additional dutyAdditional duties 35%
- Applies to goods from
- Belarus, Russia
- Legal act
- 2022 No. 376
- Documents
- 9008
- Duty suspensionAirworthiness tariff suspension Free
- Applies to goods from
- all countries
- Legal act
- S.I. 2018/1249
- Documents
- C119 Authorised Release Certificate — EASA Form 1 (Appendix I to Annex I to Regulation (EU) No 748/2012), or equivalent certificate
- Duty suspensionSuspension - goods for certain categories of ships, boats and other vessels and for drilling or production platforms Free
- Applies to goods from
- all countries
- Legal act
- 2020 No. 1431
- Documents
- C990 End use authorisation ships and platforms (Column 8c, Annex A of Delegated Regulation (EU) 2015/2446)
- Tariff lines
- on 2 of 5 lines
Import requirements 3
- Prohibition or restrictionImport prohibition
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Russia, Ukraine
- Legal act
- 2023 No. 440, S.I. 2022/395
- Documents
- 9011
- 9022
- 9038
- 9009
- 9010
- 9017
- Import controlImport control on luxury goods
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Documents
- Y945 Travellers' personal effects or goods of a non-commercial nature for travellers' personal use contained in their luggage (Art 10.2 of Regulation (EU) 2017/1509)
- Y946 Goods necessary for the official purposes of diplomatic or consular missions of Member States in the DPRK or international organisations enjoying immunities in accordance with international law, or to the personal effects of their staff (Art 10.3 of Regulation (EU) 2017/1509)
- Y948 Goods other than those described in Annex VIII (Luxury goods) of Reg. (EU) 2017/1509
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | Free |
| DCTS Comprehensive | Afghanistan, Angola, Bangladesh, Benin and 38 moreAfghanistan, Angola, Bangladesh, Benin, Bhutan, Burkina Faso, Burundi, Cambodia, Central African Republic, Chad, Comoros, Congo - Kinshasa, Djibouti, Eritrea, Ethiopia, Gambia, Guinea, Guinea-Bissau, Haiti, Kiribati, Laos, Liberia, Malawi, Mali, Mauritania, Myanmar (Burma), Nepal, Niger, Rwanda, São Tomé & Príncipe, Senegal, Sierra Leone, Somalia, South Sudan, Sudan, Tanzania, Timor-Leste, Togo, Tuvalu, Uganda, Yemen, Zambia | Free |
| European Union (including code "EU") | Free | |
| DCTS Enhanced | Algeria, Bolivia, Cape Verde, Congo - Brazzaville and 13 moreAlgeria, Bolivia, Cape Verde, Congo - Brazzaville, Cook Islands, Kyrgyzstan, Micronesia, Mongolia, Nigeria, Niue, Pakistan, Philippines, Sri Lanka, Syria, Tajikistan, Uzbekistan, Vanuatu | Free |
| CARIFORUM | Antigua & Barbuda, Bahamas, Barbados, Belize and 10 moreAntigua & Barbuda, Bahamas, Barbados, Belize, Dominica, Dominican Republic, Grenada, Guyana, Jamaica, St Kitts & Nevis, St Lucia, St Vincent & the Grenadines, Suriname, Trinidad & Tobago | Free |
| OCTs (Overseas Countries and Territories) | Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands and 7 moreAnguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, Falkland Islands, Montserrat, Pitcairn Islands, South Georgia & South Sandwich Islands, St Helena, Turks & Caicos Islands | Free |
| Central America | Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama | Free |
| SADC EPA | Botswana, Eswatini, Lesotho, Mozambique, Namibia | Free |
| Eastern and Southern Africa States | Madagascar, Mauritius, Seychelles, Zimbabwe | Free |
| CPTPP | Brunei, Malaysia | Free |
| UK–Andorra agreement | Andorra | Free |
| UK–Albania agreement | Albania | Free |
| UK–Australia agreement | Australia | Free |
| UK–Canada agreement | Canada | Free |
| UK–Switzerland agreement | Switzerland | Free |
| UK–Côte d’Ivoire agreement | Côte d’Ivoire | Free |
| UK–Chile agreement | Chile | Free |
| UK–Cameroon agreement | Cameroon | Free |
| UK–Colombia agreement | Colombia | Free |
| UK–Ceuta & Melilla agreement | Ceuta & Melilla | Free |
| UK–Ecuador agreement | Ecuador | Free |
| UK–Egypt agreement | Egypt | Free |
| UK–Fiji agreement | Fiji | Free |
| UK–Faroe Islands agreement | Faroe Islands | Free |
| UK–Georgia agreement | Georgia | Free |
| UK–Ghana agreement | Ghana | Free |
| DCTS Standard | Indonesia | Free |
| UK–Israel agreement | Israel | Free |
| UK–India agreement | India | Free |
| UK–Iceland agreement | Iceland | Free |
| UK–Jordan agreement | Jordan | Free |
| UK–Japan agreement | Japan | Free |
| UK–Kenya agreement | Kenya | Free |
| UK–South Korea agreement | South Korea | Free |
| UK–Lebanon agreement | Lebanon | Free |
| UK–Liechtenstein agreement | Liechtenstein | Free |
| UK–Morocco agreement | Morocco | Free |
| UK–Moldova agreement | Moldova | Free |
| UK–North Macedonia agreement | North Macedonia | Free |
| UK–Mexico agreement | Mexico | Free |
| UK–Norway agreement | Norway | Free |
| UK–New Zealand agreement | New Zealand | Free |
| UK–Peru agreement | Peru | Free |
| UK–Papua New Guinea agreement | Papua New Guinea | Free |
| UK–Palestinian Territories agreement | Palestinian Territories | Free |
| UK–Serbia agreement | Serbia | Free |
| UK–Solomon Islands agreement | Solomon Islands | Free |
| UK–Singapore agreement | Singapore | Free |
| UK–San Marino agreement | San Marino | Free |
| UK–Tunisia agreement | Tunisia | Free |
| UK–Türkiye agreement | Türkiye | Free |
| UK–Ukraine agreement | Ukraine | Free |
| UK–Vietnam agreement | Vietnam | Free |
| UK–Samoa agreement | Samoa | Free |
| UK–Kosovo agreement | Kosovo | Free |
| UK–South Africa agreement | South Africa | Free |
UK: imports by month
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
| £22.5m | 24.3% | +21.1% | |
| £21.5m | 23.3% | +25.7% | |
| £13.5m | 14.6% | +15.8% | |
| £5.1m | 5.5% | +23.2% | |
| £4.8m | 5.2% | +94.4% | |
| £3.5m | 3.8% | +3.3% | |
| £3.3m | 3.6% | +12.2% | |
| £2.3m | 2.5% | -7.4% |
Same subheading in other tariffs
World trade in 2024
Trade value (US$) no reported trade < US$56kUS$56k+US$4m+US$47m+> US$119m
Exports: 171
- Germany: US$860m
- China: US$509m
- United States: US$509m
- Italy: US$393m
- Japan: US$213m
- United Kingdom: US$119m
- India: US$105m
- France: US$104m
- Canada: US$84m
- Austria: US$71m
- Netherlands: US$71m
- Sweden: US$67m
- Switzerland: US$56m
- Thailand: US$56m
- Spain: US$51m
- Czechia: US$49m
- Poland: US$47m
- South Korea: US$46m
- Hungary: US$45m
- Belgium: US$39m
- Mexico: US$36m
- Slovakia: US$34m
- Taiwan: US$30m
- Singapore: US$29m
- Türkiye: US$27m
- Denmark: US$14m
- South Africa: US$13m
- Finland: US$12m
- Brazil: US$11m
- Serbia: US$10m
- Norway: US$8m
- Australia: US$7m
- Russia: US$7m
- Israel: US$7m
- Indonesia: US$6m
- Kazakhstan: US$6m
- Ireland: US$5m
- Lithuania: US$5m
- Vietnam: US$5m
- Malaysia: US$4m
- United Arab Emirates: US$4m
- Bulgaria: US$4m
- Romania: US$4m
- Slovenia: US$3m
- Philippines: US$3m
- Hong Kong SAR China: US$3m
- New Zealand: US$2m
- Ukraine: US$2m
- Portugal: US$1m
- Chile: US$1m
- Cyprus: US$1m
- Argentina: US$1m
- Croatia: US$924k
- Luxembourg: US$779k
- Greece: US$704k
- Sri Lanka: US$630k
- Morocco: US$624k
- Saudi Arabia: US$595k
- Estonia: US$551k
- Latvia: US$507k
Trade value (US$) no reported trade < US$1mUS$1m+US$9m+US$56m+> US$141m
Imports: 216
- United States: US$501m
- Germany: US$247m
- China: US$234m
- Mexico: US$206m
- Italy: US$153m
- France: US$146m
- India: US$141m
- Canada: US$128m
- United Kingdom: US$104m
- Japan: US$90m
- Belgium: US$79m
- Hungary: US$79m
- Netherlands: US$78m
- Brazil: US$77m
- Türkiye: US$71m
- South Korea: US$70m
- Australia: US$70m
- Sweden: US$64m
- Spain: US$61m
- Indonesia: US$58m
- Russia: US$58m
- Poland: US$56m
- Thailand: US$55m
- Austria: US$50m
- Czechia: US$50m
- Malaysia: US$46m
- Singapore: US$44m
- United Arab Emirates: US$43m
- South Africa: US$39m
- Finland: US$34m
- Saudi Arabia: US$29m
- Switzerland: US$29m
- Taiwan: US$29m
- Chile: US$29m
- Vietnam: US$28m
- Romania: US$28m
- Denmark: US$27m
- Hong Kong SAR China: US$24m
- Norway: US$22m
- Argentina: US$22m
- Kazakhstan: US$21m
- Philippines: US$19m
- Colombia: US$18m
- Egypt: US$16m
- Peru: US$15m
- Serbia: US$14m
- Slovakia: US$12m
- Ireland: US$11m
- Ukraine: US$10m
- Ecuador: US$9m
- Israel: US$9m
- Lithuania: US$9m
- Algeria: US$9m
- Nigeria: US$9m
- Iran: US$9m
- Greece: US$7m
- Oman: US$7m
- Qatar: US$7m
- Portugal: US$7m
- Slovenia: US$7m
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | US$860m | 22.6% | |
| 2 | US$509m | 13.4% | |
| 3 | US$509m | 13.3% | |
| 4 | US$393m | 10.3% | |
| 5 | US$213m | 5.6% | |
| 6 | US$119m | 3.1% | |
| 7 | US$105m | 2.7% | |
| 8 | US$104m | 2.7% | |
| 9 | US$84m | 2.2% | |
| 10 | US$71m | 1.9% |
Top importers
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | US$501m | 13.2% | |
| 2 | US$247m | 6.5% | |
| 3 | US$234m | 6.1% | |
| 4 | US$206m | 5.4% | |
| 5 | US$153m | 4% | |
| 6 | US$146m | 3.8% | |
| 7 | US$141m | 3.7% | |
| 8 | US$128m | 3.3% | |
| 9 | US$104m | 2.7% | |
| 10 | US$90m | 2.4% |
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
- 43number of duty-free countries (MFN)
- 35%highest: Bermuda, Pakistan, Cayman Islands
165
| Importing country | MFN duty | lines from – to | data year |
|---|---|---|---|
| 5% | 2018 · HS 2012 | ||
| 0% | 2023 | ||
| 15% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 20% | 2021 · HS 2017 | ||
| 5% | 2021 · HS 2007 | ||
| 14% | 2023 · HS 2017 | ||
| 5% | 2023 | ||
| 12% | 2021 · HS 2012 | ||
| 5% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 20% | 2022 | ||
| 5% | 2023 | ||
| 1% | 2023 · HS 2017 | ||
| 5% | 2022 · HS 2017 | ||
| 5% | 2021 · HS 2017 | ||
| 5% | 2023 | ||
| 10% | 2023 | ||
| 35% | 2023 | ||
| 10% | 2022 | ||
| 5% | 2023 · HS 2017 | ||
| 2.5% | 0% – 5% | 2022 | |
| 0% | 2023 | ||
| 14% | 2023 · HS 2017 | ||
| 0% | 2023 · HS 2017 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 15% | 2023 · HS 2017 | ||
| 10% | 2023 | ||
| 0% | 2023 | ||
| 10% | 0% – 20% | 2023 · HS 2017 | |
| 27% | 2021 · HS 2002 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 6% | 2023 · HS 2017 | ||
| 8% | 2023 | ||
| 2.5% | 0% – 5% | 2023 · HS 2017 | |
| 20% | 2021 · HS 2017 | ||
| 10% | 2023 | ||
| 0% | 2022 · HS 2017 | ||
| 0% | 2023 | ||
| 10% | 2023 · HS 2017 | ||
| 10% | 2023 · HS 2017 | ||
| 5% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 5% | 0% – 10% | 2019 · HS 2017 | |
| 0% | 2022 | ||
| 10% | 2023 | ||
| 0% | 2023 | ||
| 20% | 2021 · HS 2017 | ||
| 2.7% | 2023 | ||
| 0% | 2023 | ||
| 13% | 2023 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 0% | 2022 · HS 2017 | ||
| 10% | 2023 | ||
| 12% | 2023 · HS 2017 | ||
| 5% | 2023 · HS 2012 | ||
| 0% | 2023 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 5% | 2023 · HS 2017 | ||
| 5% | 2020 · HS 2017 | ||
| 0% | 2023 | ||
| 0% | 2023 | ||
| 0% | 2023 | ||
| 7.5% | 2023 | ||
| 5% | 2023 | ||
| 10% | 2020 · HS 2017 | ||
| 5% | 0% – 9.6% | 2022 · HS 2017 | |
| 0% | 2023 | ||
| 0% | 2023 | ||
| 2.5% | 0% – 5% | 2023 | |
| 0% | 2023 | ||
| 10% | 2023 | ||
| 0% | 2023 · HS 2002 | ||
| 5% | 2023 | ||
| 5% | 2021 · HS 2017 | ||
| 5% | 2023 · HS 2017 | ||
| 5% | 2020 · HS 2017 | ||
| 0% | 2023 | ||
| 10% | 2023 | ||
| 5% | 2021 · HS 2017 | ||
| 0.6%* | 0.4% – 0.7% | 2021 · HS 2017 | |
| 0% | 2023 | ||
| 10% | 2023 | ||
| 5% | 0% – 10% | 2021 · HS 2017 | |
| 5% | 2023 | ||
| 23% | 0% – 50% | 2023 | |
| 10% | 2023 | ||
| 10% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 8.3% | 0% – 15% | 2023 · HS 2017 | |
| 4% | 2021 · HS 2017 | ||
| 5% | 2023 · HS 2017 | ||
| 5% | 2023 | ||
| 13% | 5% – 20% | 2023 · HS 2017 | |
| 21% | 2.5% – 40% | 2023 | |
| 7.5% | 2023 | ||
| 3% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 10% | 2021 · HS 2017 | ||
| 15% | 2023 | ||
| 5% | 2023 | ||
| 0% | 2023 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 8% | 2023 | ||
| 0% | 2023 | ||
| 5% | 2023 | ||
| 31% | 20% – 35% | 2023 | |
| 3% | 2023 · HS 2012 | ||
| 5% | 0% – 9.6% | 2017 · HS 2017 | |
| 0% | 2023 | ||
| 0% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 0% | 2023 · HS 2017 | ||
| 1% | 2023 | ||
| 5% | 2023 | ||
| 5% | 2021 · HS 2017 | ||
| 10% | 2023 | ||
| 20% | 2020 · HS 2017 | ||
| 10% | 2019 · HS 2017 | ||
| 12% | 2023 | ||
| 10% | 2023 | ||
| 0% | 2023 | ||
| 10% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 10% | 2023 · HS 2017 | ||
| 15% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 5.3% | 3% – 8% | 2023 | |
| 0% | 2023 | ||
| 5% | 2023 | ||
| 0% | 2023 · HS 2012 | ||
| 5% | 2021 · HS 2017 | ||
| 5% | 2023 | ||
| 10% | 2021 · HS 2017 | ||
| 5% | 2023 · HS 2007 | ||
| 0.6%* | 0.5% – 0.8% | 2023 | |
| 5.5% | 1% – 10% | 2020 · HS 2012 | |
| 5% | 2021 · HS 2012 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 10% | 2023 | ||
| 15% | 2023 · HS 2017 | ||
| 0% | 2023 · HS 2012 | ||
| 1.4% | 0% – 2.7% | 2023 | |
| 0% | 2017 · HS 2017 | ||
| 10% | 2023 | ||
| 0% | 2023 · HS 2017 | ||
| 5% | 2023 | ||
| 0% | 2023 | ||
| 2.8% | 2023 | ||
| 2% | 2023 · HS 2017 | ||
| 0% | 2021 · HS 2017 | ||
| 10% | 2023 | ||
| 14% | 2023 · HS 2017 | ||
| 0% | 2023 | ||
| 10% | 2021 · HS 2012 | ||
| 5% | 2017 · HS 2017 | ||
| 15% | 2023 | ||
| 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
- 7486 Clutches & shaft couplings (including universal joints)
- 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
| HS | Code | |
|---|---|---|
| 2017 | 8483.60 | changed |
| 2012 | 8483.60 | changed |
| 2007 | 8483.60 | changed |
| 2002 | 8483.60 | changed |
| 1996 | 8483.60 | changed |
| 1992 | 8483.60 | changed |
Correspondence tables of the United Nations Statistics Division (UNSD)
Binding rulings for similar goods 1
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N343687 U.S. CBP
The tariff classification of roller pumps and power take-off shaft couplers from China
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.
-
UK Trade Tariff: measure changes on 1015 commodity codes
Trade Tariff changes 2026-09-29 · Source: trade-tariff.service.gov.uk
-
UK Trade Tariff: measure changes on 103 commodity codes
Trade Tariff changes 2026-09-21 · Source: trade-tariff.service.gov.uk
-
Update to VATZ Coverage – 8 September 2026
Trade Tariff news 8315 · Source: trade-tariff.service.gov.uk
-
FR Doc. 2026-14542 · 91 FR 45516 · Source: federalregister.gov
-
CELEX 32026R1463 · Source: eur-lex.europa.eu
-
Update to Commodity Code structure to maintain dynamic alignment with the EU – 30 June 2026
Trade Tariff news 6995 · Source: trade-tariff.service.gov.uk
-
FR Doc. 2026-11158 · 91 FR 33854 · Source: federalregister.gov
-
FR Doc. 2026-10571 · 91 FR 31818 · Source: federalregister.gov
In the UK Global Tariff, subheading 8483.60 covers 5 tariff lines and the duty is duty-free.
The EU Combined Nomenclature divides subheading 8483.60 into 2 tariff lines; the duty is 2.7%.
Goods from 174 countries can enter the UK at a preferential rate instead of the standard Free; 174 of them pay no duty at all, for example under DCTS Comprehensive or European Union.
In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.
In the 12 months to August 2026, the UK imported clutches and shaft couplings worth £92.6m (up 18% on the year before), at an average of £16.73 per kg; Germany supplied 24%, followed by United States.
World trade in clutches and shaft couplings reached US$4bn in 2024, down 1.7% on 2023.
Germany was the largest exporter with 22.6% of the total, ahead of China.
Products classified here
Questions and answers
What is the HS code for clutches and shaft couplings (including universal joints)?
Clutches and shaft couplings (including universal joints) fall under HS subheading 8483.60, part of heading 8483, in section XVI of the Harmonized System.
What is the import duty on clutches and shaft couplings in the UK?
Under the UK Global Tariff, imports under 8483.60 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on clutches and shaft couplings in the EU?
Under the EU Combined Nomenclature, imports under 8483.60 from countries without a preferential agreement are charged at 2.7%. Preferential rates, anti-dumping duties and VAT are not included.
Which country exports the most clutches and shaft couplings?
Germany, with US$860m in 2024 (22.6% of world exports).
Which countries can export clutches and shaft couplings to the UK duty-free?
174 countries pay no duty under a trade agreement or preference scheme, among them partners under DCTS Comprehensive, European Union, DCTS Enhanced. The goods must meet the agreement’s rules of origin and the importer needs proof of origin; otherwise the standard rate of Free applies. Pick a country above to see its rate.
Is there anti-dumping duty on clutches and shaft couplings?
The UK charges additional duty of 35% on goods from Belarus and Russia. Lower rates apply to the named exporters listed in the measure.
Where does the UK import clutches and shaft couplings from?
In the 12 months to August 2026, the largest suppliers were Germany (24%), United States (23%) and Italy (15%), out of total imports of £92.6m.
Typical products
- cardan joints
- clutches
- flange couplings
- flexible couplings
- friction clutches
- hydraulic couplings
- oldham couplings
- shaft couplings
- sleeve couplings
- universal couplings
- universal joints
Everyday names, not part of the legal text.