8483.40.50.20 Gear boxes and speed changers for wind turbines, as described in statistical note 9 to this chapter

Statistical reporting number under subheading 8483.40.50, Fixed ratio speed changers, multiple and variable ratio speed changers each ratio of which is selected by manual....

In chapter 84, Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof; heading 8483, Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears....

8483.40.50.20 as printed in HTS Revision 20 (2026)

Description	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 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 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 Other Gear boxes and speed changers for wind turbines, as described in statistical note 9 to this chapter
Units of quantity	No.
General rate (column 1), printed on 8483.40.50	2.5%
Special rate (column 1), printed on 8483.40.50	Free (A*,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2 rate, printed on 8483.40.50	27.5%

Column 2 rates apply to products of the countries listed in General Note 3(b) of the schedule: the Republic of Belarus, Cuba, North Korea and the Russian Federation (Revision 20 (2026)).

Footnotes

See 9903.90.08. (on the column 2 rate of 8483.40.50)

Chapter 99 headings this line cites

Each heading as the schedule prints it, with where the line cites it. A citation is not a finding that the heading applies to a shipment.

Heading	Text as printed	General	Special	Column 2	Cited in
9903.90.08	Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter	none printed	none printed	35%	footnote on the column 2 rate of 8483.40.50

The other statistical lines under 8483.40.50

HTS number	Description	Units
8483.40.50.10	Fixed ratio speed changers	No.
8483.40.50.20	Gear boxes and speed changers for wind turbines, as described in statistical note 9 to this chapter	No.
8483.40.50.80	Other	No.

What this page leaves to your broker

This page quotes the schedule. It does not add the rates together, and it does not say whether a chapter 99 heading applies to a shipment: that turns on the country of origin, the dates and the U.S. notes to chapter 99. Section 301, Section 232 and other chapter 99 measures list the goods they cover in those notes and in Federal Register notices, so a line can be covered by a heading its footnotes never cite. A licensed customs broker makes the determination.

Email me when 8483.40.50.20 changes

When USITC publishes a new revision, we compare this line and every chapter 99 heading it cites, and email you the old and new text side by side. A 10-digit watch also covers the rates printed on 8483.40.50.

Watch this line

Open 8483.40.50.20 on hts.usitc.gov

Other lines in heading 8483

8483.20.40 Flange, take-up, cartridge and hanger units
8483.20.80 Housed bearings, incorporating ball or roller bearings: other
8483.30.40 Flange, take-up, cartridge and hanger units
8483.30.80 Bearing housings; plain shaft bearings: other
8483.40.10 Torque converters
8483.40.30 Imported for use with machines for making cellulosic pulp, paper or paperboard
8483.40.70 Gear boxes and other speed changers: other speed changers
8483.40.80 Ball or roller screws
8483.40.90 Gears and gearing, other than toothed wheels, chain sprockets and other...
8483.50.40 Gray-iron awning or tackle pulleys, not over 6.4 cm in wheel diameter
8483.50.60 Flywheels and pulleys, including pulley blocks: flywheels
8483.50.90 Flywheels and pulleys, including pulley blocks: other

Built September 29, 2026 from HTS Revision 20 (2026) (USITC release 2026HTSRev20, published September 23, 2026, current since September 28, 2026). The schedule changes often; USITC's own site always has the current text.