Wind Turbine Multi-Stage Gearbox Spacer Ring
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If spacer for mining equipment multi-stage reducers
Non-wind speed changer parts use residual classification.
If imported without heat treatment or precision grinding
Basic steel rings classified as other steel articles.
If part of complete wind power generating set
Wind turbine assemblies may have parts in heading 8479.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• 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
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 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.