Polymer Composite Plain Bearing for Crystal Grinder from Canada
High-load polymer composite (POM/PTFE blend) plain shaft bearing without housing for crystal grinders that shape semiconductor boules with conductivity flats. Falls under HTS 8483.30.8090 as a plain shaft bearing designed for precision semiconductor applications.
Duty Rate — Canada → United States
29.5%
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 already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Detail composite formulation and load ratings to distinguish from generic plastic parts
• Include wear test data proving bearing functionality
• Ensure EU REACH compliance for polymer blends