High-Temp Outer Race for Czochralski Puller Thrust Bearings
Inconel superalloy outer race for thrust bearings in Czochralski pullers, enduring 1400°C+ melt temperatures during silicon crystal growth. Supports vertical pull mechanism for large-diameter semiconductor boules. 8482.99.25 classification for other races.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If nickel-based superalloy dominant
Primarily nickel content shifts to Chapter 75 nickel articles from bearing parts.
If complete thrust bearing
When shipped assembled with thrust elements, becomes full bearing under 8482.50.
If semiconductor crystal growing machines
Parts of float zone/Czochralski growers specifically classify in 8479.50.
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Import Tips & Compliance
• Provide alloy composition analysis and max temp ratings for superalloy verification
• Reference Chapter 84 statistical note (a)(i) for crystal pullers in documentation
• Beware of complete puller import under 8479 absorbing parts classification
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