Micro-Precision Needle Rollers
0.8mm diameter micro-needles for miniature bearings in automated wafer grinders. Enable precise orbital motion for semiconductor wafer diameter control. HTS 8482.91.0090 other needles/rollers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If assembled in complete miniature bearings
Complete small bearings have specific provisions.
If for laser-based wafer measurement bearings
Precision instrument bearings under Chapter 90.
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Import Tips & Compliance
• Laser-etch size markings for Customs verification; Class 1000 cleanroom certification; anti-corrosion vapor phase inhibitor packaging
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