Steam Turbine Generator Coupling from Japan
Flexible disc or gear-type couplings synchronizing turbine and generator shafts for grid-stable operation. HTS 8406.90.45 as other steam turbine parts. High misalignment tolerance for base-load plants.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Document torsional stiffness ratings matching turbine-generator specs
• Separate couplings from flexibles under 8483 by proving rigid turbine integration
• Use bonded warehouses for high-value couplings pending turbine installation