Wind Turbine Multi-Stage Gearbox Spacer Ring from Japan
Hardened steel ring maintaining precise axial spacing between gear stages in compound wind turbine gearboxes, critical for gear mesh alignment. Falls under HTS 8483.90.50.20 as essential internal part of wind turbine speed changers.
Duty Rate — Japan → United States
12.5%
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
• Provide gear stage layout drawings showing spacer critical dimensions
• Certify hardness (HRC 58-64) and straightness tolerances (<0.02mm/100mm)
• Avoid general 'ring' classification (7326) by documenting transmission function