Macor Machinable Ceramic Bearing Bushes
Macor glass-ceramic machinable bushes for prototype lab bearings and chemical fixtures. Fired microcrystalline structure allows post-firing machining for technical precision. Under HTS 6909.19.50.10 as ceramic technical bearings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If glass-ceramic articles not fired as ceramics
Chapter 70 for glass if not meeting ceramic firing definitions.
If parts of lab machines
If imported as machine-specific parts, Chapter 84/85 may apply.
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Import Tips & Compliance
• Document machinability as value-add after firing to confirm Chapter 69
• Avoid bulk import suggesting packing receptacles under 6909.90
• Test absorption; glass-ceramics may border stoneware definitions
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