Precision Ground Spherical Roller for Semiconductor Equipment
Ultra-precision spherical roller with micro-tolerances for bearings in semiconductor wafer grinding and polishing machines. Ground to sub-micron flatness for vibration-free operation during wafer processing. HTS 8482.91.0070 applies as a bearing part used in high-tech manufacturing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for semiconductor manufacturing machines specifically
Per statistical notes, certain semiconductor processing equipment parts may qualify for Chapter 84 heading 8486.
If for precision testing apparatus bearings
Bearings in semiconductor testing machines often classify in Chapter 90 as measuring instruments.
If classified as needles rather than spherical
Cylindrical needle rollers have separate statistical suffixes from spherical rollers.
Not sure which classification is right?
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Import Tips & Compliance
• Provide equipment end-use letters from buyers to support semiconductor application claims
• Include SEMI standards certification for cleanroom compatibility documentation
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