Ceramic Plain Bearing for Wafer Polisher from China
A high-precision silicon carbide ceramic plain shaft bearing without housing, used in wafer polishers to achieve flatness tolerances critical for semiconductor device fabrication. Under HTS 8483.30.8090 as a plain shaft bearing for semiconductor wafer preparation 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
• Supply ceramic material analysis (SiC density, hardness) to confirm bearing function over refractory use
• Certify for vibration-free operation with semiconductor-specific tolerances
• Watch for anti-dumping duties on certain ceramic bearings from specific countries