Precision Roller Set for Wafer Lapping Machine Bearings from Mexico
Matched set of super-precision cylindrical rollers for bearings in wafer lappers that achieve mirror-surface flatness before device fabrication. Silicon nitride coated for contamination-free operation in cleanrooms. Part of 8482.99.65.60 for semiconductor wafer preparation bearings.
Duty Rate — Mexico → 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
• Include cleanroom certification (ISO 3 compatible) and coating specs for classification
• Specify roller diameter tolerances (<1μm) proving semiconductor precision requirement
• Bundle with complete bearing assembly documentation if imported as maintenance kit