Cylindrical Roller Bearing Inner Race for Semiconductor Wafer Pullers
Precision inner race designed specifically for cylindrical roller bearings used in crystal growers and pullers during semiconductor wafer manufacturing. It supports high-precision rotation under vacuum conditions to produce monocrystalline silicon boules via Czochralski method. Classified under 8482.99.2560 as an inner ring for other cylindrical roller bearings.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed for ball bearings instead of cylindrical rollers
Ball bearing races fall under the specific ball bearing subheading, separate from cylindrical roller provisions.
If classified as part of semiconductor testing apparatus
Precision components integral to testing machines may shift to Chapter 90 per statistical notes.
If imported as part of complete semiconductor processing machine
Unspecified parts of semiconductor machines are classified in 8479 rather than separate bearing parts.
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Import Tips & Compliance
• Verify bearing dimensions and tolerances match semiconductor equipment specs; provide manufacturer certifications for precision classification
• Include end-use documentation proving use in wafer manufacturing to avoid reclassification as general machinery parts
• Ensure proper marking of material composition (e.g
• high-carbon chrome steel) to comply with Section XVI notes
Related Products under HTS 8482.99.25.60
Outer Ring for Cylindrical Roller Bearings in Wafer Slicing Saws
Durable outer race for cylindrical roller bearings that support the high-speed spindle in diamond wafer slicing saws used to cut monocrystalline boules into thin wafers. Engineered for minimal vibration and precise slicing tolerances essential in semiconductor fabrication. Falls under 8482.99.2560 as outer ring for other cylindrical roller bearings.
Precision Inner Race for Wafer Grinder Cylindrical Roller Bearings
High-precision inner ring for cylindrical roller bearings in wafer grinders that shape crystal boules to exact diameters for semiconductor wafer production. Features super-fine surface finish to maintain grinding accuracy and flatness. Classified in 8482.99.2560 for other cylindrical roller bearing inner races.
Semiconductor Wafer Lapping Machine Outer Bearing Race
Outer race optimized for cylindrical roller bearings in lapping machines that achieve ultra-flat wafer surfaces for semiconductor device fabrication. Withstands abrasive slurry conditions while maintaining sub-micron precision. HTS 8482.99.2560 applies to such other cylindrical roller bearing outer rings.
Crystal Boule Grinder Cylindrical Roller Bearing Inner Ring
Specialized inner race for cylindrical roller bearings supporting heavy-duty grinding spindles in crystal boule grinders for semiconductor wafer preparation. Provides exceptional rigidity for flat grinding to indicate crystal conductivity type. Under 8482.99.2560 as inner ring for other cylindrical roller bearings.
High-Precision Wafer Polisher Roller Bearing Outer Race
Ultra-precision outer ring for cylindrical roller bearings in chemical-mechanical wafer polishers achieving mirror-finish surfaces for semiconductor fabrication. Designed for high-speed, low-vibration polishing platens. Classified 8482.99.2560 for other cylindrical roller bearing outer rings.