HS HEADING 8483

Transmission shafts (including cam and crank) 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

HEADING

8483

CHAPTER

84 — Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

In plain English

This category covers mechanical parts used to transmit motion and power, such as shafts, cranks, bearings, gears, screws, gearboxes, flywheels, pulleys, and clutches. The items are separated into specific groups based on their function and construction, distinguishing between different types of shafts, bearing housings with or without specific bearings, and various gearing mechanisms. Additional divisions separate pulleys and flywheels from clutches and couplings, while a final group captures other transmission components like toothed wheels and chain sprockets when they are not part of a larger assembly.

PARAPHRASE OF THE OFFICIAL HS 2022 TEXTS BELOW — NOT LEGAL ADVICE

6-digit subheadings (7)

Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.

8483.10

Transmission shafts (including cam shafts and crank shafts) and cranks

8483.20

Bearing housings, incorporating ball or roller bearings

8483.30

Bearing housings, not incorporating ball or roller bearings and plain shaft bearings

8483.40

Gears and gearing; (not toothed wheels, chain sprockets and other transmission elements presented separately); ball or roller screws; gear boxes and other speed changers, including torque converters

8483.50

Pulleys and flywheels, including pulley blocks

8483.60

Clutches and shaft couplings (including universal joints)

8483.90

Transmission components; toothed wheels, chain sprockets and other transmission elements presented separately; parts

Chapter 84 classification notes

One of the largest chapters by trade value. Many IT products duty-free under the ITA (Information Technology Agreement). Dual-use export controls apply to certain machinery. Parts often classified under the same heading as the complete machine.

Frequent misclassification in this chapter

Many importers confuse Chapter 84 (mechanical) and Chapter 85 (electrical). A device with both elements usually classifies by principal function. Computer peripherals may classify separately from the computer itself.

Classification certainty

The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.

Binding tariff ruling database

Other headings in Chapter 84

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