Wind Turbine Gearbox Vibration Damper Mount from China
Elastomer-bonded steel mount isolating gearbox vibration from turbine structure, extending bearing life in turbulent wind conditions. Classified HTS 8483.90.50.20 for wind turbine gearbox mounting components.
Duty Rate — China → United States
37.5%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include dynamic stiffness test data (typically 10-50 Hz resonance avoidance)
• Document elastomer durometer (70-90 Shore A) suitable for -40°C to +80°C operation
• Classify as gearbox part vs general mounts by nacelle load path documentation