Cylindrical Bearing Rollers for Pullers
High-length-to-diameter ratio cylindrical rollers for axial bearings in Czochralski puller mechanisms. Support heavy crystal growth loads in semiconductor manufacturing. 8482.91.0090 other rollers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported with matching outer races
Complete cylindrical roller bearings have separate heading.
If parts of crystal growth machinery
Specific semiconductor machinery parts under Chapter 84.
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Import Tips & Compliance
• Specify L/D ratio >4:1 for roller classification; dynamic load rating documentation; matched set numbering system
Related Products under HTS 8482.91.00.90
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Grade 5 precision silicon-alloyed steel balls for bearings in Czochralski crystal puller rotation mechanisms. Critical for maintaining boule uniformity during semiconductor crystal growth. HTS 8482.91.0090 as other bearing balls.
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Miniature Needle Rollers for Wafer Polishers
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