Roller Retainer for Crystal Boule Grinders from China
Special alloy retainer assembly holding cylindrical rollers in bearings for crystal grinders that shape semiconductor boules to exact wafer diameters. Withstands abrasive silicon carbide particles during flat grinding operations. HTS 8482.99.65.60 applies to such parts for cylindrical roller bearings in semiconductor crystal preparation.
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
• Provide photos/engineering data showing anti-abrasion coatings specific to silicon grinding
• Confirm bearing OD/ID specs match boule grinder spindles (150-300mm class)
• Document exclusion from float-zone crystal grower applications to use correct suffix