Cylindrical Roller Bearing Cage for Semiconductor Wafer Pullers
This precision-machined cage is designed specifically for cylindrical roller bearings used in crystal pullers during semiconductor boule production via the Czochralski method. It maintains roller separation and alignment under high-temperature, vacuum conditions essential for growing monocrystalline silicon. Classified under 8482.99.65.60 as a part for other cylindrical roller bearings in semiconductor manufacturing equipment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for ball bearings instead of cylindrical rollers
Parts specifically designed for ball bearings fall under the ball bearing parts subheading.
If classified as part of testing apparatus
Semiconductor testing machines (per statistical notes) are often in Chapter 90, shifting certain parts there.
If sold as complete semiconductor processing machine part set
Unspecified parts of semiconductor manufacturing machines may classify under the machines themselves in 8479.
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Import Tips & Compliance
• Verify statistical suffix .65.60 applies specifically to semiconductor processing equipment per Chapter 84 notes
• Provide manufacturer specs confirming use in crystal growers/pullers to avoid reclassification to general machinery parts
• Include material certificates showing compatibility with vacuum/high-temperature semiconductor environments
Related Products under HTS 8482.99.65.60
Outer Ring for Cylindrical Roller Bearings in Wafer Slicing Saws
Precision outer ring component for cylindrical roller bearings in diamond wafer slicing saws that cut monocrystalline semiconductor boules into wafers. Engineered for high-speed, vibration-free operation to maintain slice precision within microns. Falls under 8482.99.65.60 as a part for cylindrical roller bearings in semiconductor wafer preparation equipment.
Inner Race for Bearings in Semiconductor Wafer Grinders
Hardened steel inner race for cylindrical roller bearings supporting rotating platens in wafer grinders that achieve precise wafer thickness for fabrication. Designed for ultra-flatness maintenance during back-grinding processes on silicon wafers. Classified in 8482.99.65.60 for cylindrical roller bearing parts used in wafer preparation equipment.
Roller Retainer for Crystal Boule Grinders
Special alloy retainer assembly holding cylindrical rollers in bearings for crystal grinders that shape semiconductor boules to exact wafer diameters. Withstands abrasive silicon carbide particles during flat grinding operations. HTS 8482.99.65.60 applies to such parts for cylindrical roller bearings in semiconductor crystal preparation.
Precision Roller Set for Wafer Lapping Machine Bearings
Matched set of super-precision cylindrical rollers for bearings in wafer lappers that achieve mirror-surface flatness before device fabrication. Silicon nitride coated for contamination-free operation in cleanrooms. Part of 8482.99.65.60 for semiconductor wafer preparation bearings.
High-Temperature Cage for Float Zone Crystal Puller Bearings
Inconel alloy cage for cylindrical roller bearings in float zone crystal pullers producing ultra-pure silicon boules without crucibles. Rated for 1400°C operation during zone refining process. 8482.99.65.60 covers parts for such semiconductor crystal growing equipment bearings.