Roller Retainer for Crystal Boule Grinders from Canada
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 — Canada → United States
15.8%
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
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