Graphite Plain Shaft Bearing for Crystal Puller from China
A self-lubricating graphite plain shaft bearing without housing, used in Czochralski crystal pullers to support rotating shafts during monocrystalline silicon boule growth for semiconductor wafers. Classified under HTS 8483.30.8090 for its role as a plain shaft bearing in high-temperature semiconductor processing equipment.
Duty Rate — China → United States
39.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Provide thermal tolerance specs and end-use statements for semiconductor crystal growth to support plain bearing classification
• Ensure no housing attachment; loose import risks reclassification as housed bearings under 8483.30.30
• Declare graphite purity levels to avoid chemical product headings in Chapter 38