Wind Turbine High-Speed Gear Shaft
Precision-forged alloy steel shaft with helical gears that connects the gearbox output to the generator in wind turbines, rated for speeds up to 1800 RPM. Classified under HTS 8483.90.50.20 due to its integral role in wind turbine speed changers for power transmission.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a complete transmission shaft without integral gearing
Separate transmission shafts (not gearing elements) are classified in 8483.10 rather than gearbox parts.
If for gearboxes in marine propulsion rather than wind energy
Non-wind turbine speed changer parts use the general provision.
If specifically designed as replacement part for wind turbine main shaft bearing housing
Parts of wind turbine engines (if classified as such) fall under turbine engine parts in 8412.90.
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Import Tips & Compliance
• Provide material test certificates (MTC) confirming alloy composition and heat treatment suitable for wind turbine fatigue loads
• Label clearly as 'wind turbine gearbox part' to distinguish from automotive or industrial shafts
• Ensure shaft tolerances meet ISO 6336 standards for gearing to prevent CBP challenges
Related Products under HTS 8483.90.50.20
Wind Turbine Planetary Gearbox Housing
This robust cast iron housing encases the planetary gears within a wind turbine's main gearbox, transmitting torque from the rotor to the generator. It falls under HTS 8483.90.50.20 as a dedicated part of gearboxes for wind turbines, designed to withstand high radial and axial loads in harsh offshore environments.
Wind Turbine Gearbox Bearing Retainer Ring
Specialized steel retainer ring that secures large roller bearings within wind turbine gearbox housings, engineered for extreme shock loads and vibration. It qualifies for HTS 8483.90.50.20 as an essential component of wind turbine speed changing mechanisms.
Wind Turbine Main Gearbox Torque Arm
Heavy-duty fabricated steel arm that mounts the main gearbox to the wind turbine nacelle bedplate, absorbing torque reactions up to 10 million Nm. Falls under HTS 8483.90.50.20 as a structural part of wind turbine gear boxes and speed changers.
Wind Turbine Gearbox Oil Pump Mounting Bracket
Precision CNC-machined aluminum bracket that positions the lubrication oil pump within wind turbine gearboxes, ensuring reliable cooling under full load. Classified in HTS 8483.90.50.20 for its role in maintaining wind turbine speed changer functionality.
Wind Turbine Parallel Shaft Gearbox Coupler
High-strength forged coupler connecting parallel shafts within multi-stage wind turbine gearboxes, transmitting over 5 MW power with minimal backlash. HTS 8483.90.50.20 applies as a critical internal transmission element for wind turbine speed changers.
Wind Turbine Gearbox Cooling Finned Cover
Die-cast aluminum cover with integrated cooling fins for wind turbine gearbox housings, facilitating heat dissipation from 100°C+ oil temperatures. Classified under HTS 8483.90.50.20 as part of wind turbine speed changing equipment enclosures.