Precision Roller Set for Wafer Lapping Machine Bearings from Canada
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 — Canada → United States
30.8%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 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