High-Precision Roller Bearing Housing
Ultra-precise housed roller bearing for crystal boule grinders in semiconductor wafer prep equipment. Under HTS 8483.20.8080 as incorporating roller bearings not elsewhere specified. Micrometer-level tolerances.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parts of crystal grinders per notes
Semiconductor boule processing equipment parts specifically in 8466.
If loose precision rollers
Unassembled bearing components classify in 8482.
If measuring machine components
Precision positioning housings for measurement go to 9031.
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Import Tips & Compliance
• Tolerance certificates mandatory; statistical note 8483 applicability check
• Avoid Chapter 90 testing equipment mix-up
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