Graphite Seals for Electrical Slip Ring Assemblies
Self-lubricating graphite sealing rings used in high-speed electrical slip ring assemblies to prevent contamination while maintaining electrical brush contact. Classified under HTS 8545.90.40.00 for carbon articles in electrical applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as gasket sets for electrical machinery
Gasket heading applies to sealing assemblies rather than functional electrical carbons.
If rubber-impregnated rather than pure graphite
Material composition shifts classification to rubber articles when graphite is secondary.
If integral to complete motor slip ring units
DC motor parts heading covers assembled rotating electrical components.
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Import Tips & Compliance
• Document slip ring RPM capability and sealing pressure ratings
• Verify graphite lubricity properties through coefficient of friction testing
• Specify electrical isolation properties for high-voltage applications
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