Crystal Grinder Wafer Bearing Housing
Specialized housed ball bearing for semiconductor crystal grinders that shape silicon boules to wafer diameter. Classified HTS 8483.20.80 as other housed bearings used in wafer manufacturing equipment per statistical notes. Ensures flatness indication grinding.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If as part of complete crystal grinder machine
Integral to semiconductor processing machines under statistical provisions.
If precision roller bearing variant
Higher load crystal grinders use roller elements in 8483.60.
If incorporating precision measurement
Grinding bearings with integrated gauges classify as measuring instruments.
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Import Tips & Compliance
• Reference statistical note (b)(ii)(A) in entry docs to support semiconductor classification
• Class 100 cleanroom compatibility certification required
• Avoid Chapter 84 machine part declaration; emphasize standalone precision function
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