Turbine Shaft and Coupling
Forged steel shaft connecting hydraulic turbine runner to generator, with flexible couplings to accommodate misalignment. Precision-balanced for high-speed rotation. Parts of hydraulic turbines per HTS 8410.90.00.00.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general transmission shafts
Plain shafts without turbine-specific balancing/sizing classify under transmission shafts.
If generator drive shafts
Shafts designed primarily for generators go to Chapter 85 electrical machinery.
If industrial machinery shafts
Shafts for pumps/other machinery fall under Chapter 84 parts of machinery.
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
• Include dynamic balancing reports (ISO 1940) and NDT inspection certificates
• Declare coupling torque ratings and material hardness specifications
Related Products under HTS 8410.90.00.00
Kaplan Turbine Blades
Adjustable propeller blades for Kaplan turbines used in low-head, high-flow hydroelectric sites, allowing pitch variation for efficiency. Typically cast from stainless steel or bronze alloys. Classified as parts of hydraulic turbines under HTS 8410.90.00.00.
Turbine Draft Tube
Conical or elbow-shaped draft tube that recovers kinetic energy from water exiting hydraulic turbine runners, improving overall efficiency. Fabricated from welded steel plate. Parts of hydraulic turbines under HTS 8410.90.00.00.
Stay Ring for Turbine
Circular steel ring with radial stay vanes that support spiral casing and guide water flow evenly to wicket gates in Francis turbines. High-strength welded construction. Classified under HTS 8410.90.00.00 turbine parts.
Turbine Bearing Housing
Oil-lubricated bearing housings for supporting turbine main shafts, designed for continuous operation under high radial and thrust loads. Includes cooling jackets. HTS 8410.90.00.00 as hydraulic turbine parts.
Head Cover for Turbine
Top steel cover plate sealing the upper chamber of Francis turbines above the runner, designed to withstand hydraulic head pressure. Includes lifting lugs for maintenance. Parts under HTS 8410.90.00.00.
Servomotor for Wicket Gates
Hydraulic or electric servomotor actuating wicket gate linkages in reaction turbines, providing precise position control under high pressure. Integrated position feedback. Regulators/parts under HTS 8410.90.00.00.