Steel Inner Bearing Race for Semiconductor Wafer Pullers from China
Precision-machined steel inner race designed for high-speed spindle bearings in Czochralski crystal pullers used to grow monocrystalline silicon boules. Classified under 8482.99.2580 as an other inner ring for specialized industrial bearings, distinct from standard automotive or machinery applications. Essential component ensuring rotational stability during semiconductor crystal growth process.
Duty Rate — China → United States
40.8%
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
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Verify material certification meets AISI 52100 standards for bearing steel; include end-use statement for semiconductor equipment to avoid reclassification; ensure dimensional tolerances documented for customs valuation