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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in non-wind turbine applications like industrial machinery
Parts of gear boxes not specifically for wind turbines fall under the residual provision for other speed changers.
If imported as unfinished castings without machining for wind turbine assembly
Unmachined cast iron articles are classified by material in Chapter 73 rather than as finished transmission parts.
If sold as part of a complete wind turbine nacelle assembly
Machines and mechanical appliances with specific function (wind turbines) have parts classified in heading 8479.
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Import Tips & Compliance
• Verify certification that the part is specifically engineered for wind turbine gearboxes to avoid reclassification under general machinery parts
• Include detailed engineering drawings and wind turbine OEM specifications in documentation to prove end-use compliance
• Check for anti-dumping duties on steel castings from certain countries, common for gearbox housings
Related Products under HTS 8483.90.50.20
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.
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.