Bronze Bushing for Semiconductor Wafer Grinder from Germany
A precision bronze plain shaft bearing without housing, designed for high-speed rotation in wafer grinding machines used to shape semiconductor crystal boules to exact diameters. It falls under HTS 8483.30.8090 as a plain shaft bearing without housing, essential for maintaining alignment and reducing friction in semiconductor manufacturing equipment.
Duty Rate — Germany → United States
14.5%
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
• Verify material composition (e.g
• bronze alloy specs) with mill test certificates to confirm classification as plain shaft bearing
• Include end-use documentation proving use in semiconductor processing to avoid reclassification as machinery parts
• Check for tolerances and certifications like ISO 9001, as precision affects duty and compliance