Two-Stage Helical Gearbox for Wind Turbine
Parallel axis helical gearbox with two fixed ratio stages for medium-speed wind turbine applications, designed for high efficiency (98%+) and low noise operation. Specifically provided for in HTS 8483.40.50.20 for wind turbine use.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily functions as ball/roller bearing housing
Bearing housings take classification precedence
If other wind-powered generators under 75kW
Small complete generators including gearboxes in chapter 85
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Import Tips & Compliance
• Document bearing life expectancy (20+ years); include thermal expansion compensation details; verify API gear quality class 11 or better
Related Products under HTS 8483.40.50.20
Wind Turbine Yaw Drive Gearbox
Precision gearbox for wind turbine yaw system that rotates entire nacelle to face wind direction, featuring high-ratio worm or planetary gears. Although rotational speed is low, classified under HTS 8483.40.50.20 as wind turbine specific speed changer.
Wind Turbine Main Gearbox
The primary gearbox in a horizontal axis wind turbine that steps up the low rotational speed of the rotor shaft to the high speed required by the generator, typically achieving ratios of 50:1 to 100:1. It falls under HTS 8483.40.50.20 as a fixed ratio speed changer specifically designed for wind turbines per statistical note 6 to chapter 84. These gearboxes handle extreme torque loads from variable wind conditions.
Planetary Gearbox for Wind Turbine Rotor
Multi-stage planetary gearbox mounted directly on the wind turbine rotor hub to increase rotational speed for the main shaft. Classified under HTS 8483.40.50.20 as wind turbine speed changer with fixed ratios optimized for low-speed high-torque input from blades.
Wind Turbine Generator Speed Multiplier Gearbox
High-speed multiplier gearbox coupling turbine rotor to electrical generator, featuring helical and planetary stages for smooth power transmission. Meets HTS 8483.40.50.20 criteria as purpose-built wind turbine speed changer with multiple fixed ratios.
Compact Gearbox for Small Wind Turbine
Integrated gearbox for turbines under 100kW capacity, combining multiple speed stages in compact housing for residential/small commercial wind systems. Falls under HTS 8483.40.50.20 as wind-specific speed changer despite smaller scale.
High-Torque Offshore Wind Gearbox
Corrosion-resistant gearbox for offshore wind turbines rated 6-15MW, featuring enhanced sealing and oversized bearings for harsh marine environment. HTS 8483.40.50.20 applies to all wind turbine gearboxes regardless of location or capacity.