Steam Turbine Thrust Bearing
Steam turbine thrust bearings are tilting pad bearings that absorb axial loads from steam pressure differentials on rotors, oil-lubricated for continuous 24/7 operation. These bearings are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named turbine components.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the bearing is a general-purpose bearing not specific to steam turbines
Bearing housings and plain shaft bearings are classified under heading 84.83.
If the bearing is for repair or remanufacture of steam turbines
This item covers parts for repair or remanufacture, including bearings if specified.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify the bearing as a part of a steam turbine, not as a general bearing under heading 84.82
• Provide specifications showing the bearing is designed for turbine rotor axial loads
• If the bearing is imported with other turbine parts, consider whether the set constitutes a complete machine requiring different classification
Related Products under Tariff item 8406.90.39
Steam Turbine Bearing Housing
A bearing housing that encases and supports journal or thrust bearings in steam turbines, maintaining shaft alignment under high loads. It is a part of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As it is not a rotor, blade, or repair/remanufacture part, it falls under 8406.90.39 as 'other' parts.
Steam Turbine Bellows Expansion Joint
A multi-ply stainless steel bellows expansion joint that compensates for thermal expansion between turbine casing sections. It is a part of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As it is not a rotor, blade, or repair/remanufacture part, it falls under 8406.90.39 as 'other' parts.
Steam Turbine Blade Carrier Disc
Forged discs that serve as carriers for turbine blades, providing structural support in high-pressure stages of steam turbines. They are parts of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As they are not rotors, blades, or repair/remanufacture parts, they fall under 8406.90.39 as 'other' parts.
Steam Turbine Blade Locking Kit
Specialized pins, keys, and rivets that secure blades to turbine discs against centrifugal forces, sold as maintenance kits. They are parts of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As they are not rotors, blades, or repair/remanufacture parts, they fall under 8406.90.39 as 'other' parts.
Steam Turbine Coupling Shaft
High-strength forged shafts that connect turbine rotors to generators or loads, transmitting rotational power. They are parts of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As they are not rotors, blades, or repair/remanufacture parts, they fall under 8406.90.39 as 'other' parts.
Steam Turbine Diaphragm Staging
Steam turbine diaphragm staging assemblies consist of stationary diaphragm rings with precision-mounted guide vanes that direct steam flow onto the rotating blades for optimal energy extraction. These components are essential for controlling steam pressure and velocity through the turbine stages, and are classified as 'other' parts under tariff item 8406.90.39, distinct from rotors, blades, or casings.