Hybrid Ceramic-Steel Bearing Balls
Hybrid ceramic-steel bearing balls consist of a silicon nitride (Si3N4) core with a steel jacket, designed for mixed-load bearings in float zone equipment used in semiconductor crystal growth. The combination offers high hardness with improved fracture toughness. These are classified as 'other' balls under this tariff item for ball bearings.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the balls are wholly of ceramic material without a steel component
Ceramic articles for technical uses are classified in Chapter 69, not Chapter 84.
If the balls are imported as part of a complete bearing
Complete bearings are classified under other subheadings of heading 84.82.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide material composition certificates to confirm the hybrid construction for classification purposes
• Note that if the balls are wholly of ceramic material, they may be excluded from Chapter 84
• Confirm whether the end-use in semiconductor equipment qualifies for any duty relief programs
Related Products under Tariff item 8482.91.00
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