Precision 4mm Sapphire Bearing Balls
Precision 4mm sapphire bearing balls are made of synthetic sapphire and used in ultra-precision bearings for semiconductor testing polishers. Their extreme hardness and wear resistance make them ideal for high-accuracy device processing equipment. They 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 parts of specific testing machines classified elsewhere
Parts of machines are classified with the machine when they are solely or principally used with it.
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
• Ensure the sapphire balls are synthetic, as natural precious stones are excluded from Chapter 84 by Section XVI Note 1(f)
• Have documentation proving the synthetic origin and bearing application
• Confirm whether the goods are subject to any anti-dumping or countervailing measures
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