TiN Coated Bearing Balls
PVD titanium nitride coated chrome steel balls for low-friction bearings in high-vacuum wafer grinders. Gold-color coating reduces wear in semiconductor cleanrooms. HTS 8482.91.0090.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If coatings primarily for wear resistance not bearings
Coated knives/blades under Chapter 82 if tool function emphasized.
If parts of vacuum semiconductor grinders
Vacuum machine parts under Chapter 84 unspecified parts.
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Import Tips & Compliance
• Coating thickness (2-5μm) and adhesion test reports; vacuum outgassing data; avoid cross-contamination with uncoated balls
Related Products under HTS 8482.91.00.90
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Miniature Needle Rollers for Wafer Polishers
Thin miniature needle rollers (under 1.0mm diameter) for ultra-precision bearings in semiconductor wafer polishers. Enable nanometer-level surface flatness preparation for fabrication. Though needles, classified under 'other' 8482.91.0090 when not matching specific needle provisions.
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