Vacuum-Compatible Inner Race for Wafer Processing Bearings

Non-outgassing alloy inner race for UHV bearings in vacuum wafer processing equipment like crystal pullers and grinders. Maintains performance in 10^-9 Torr environments for contamination-free semiconductor production. 8482.99.25 for other races.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
πŸ‡¨πŸ‡³China5.8%+35.0%40.8%
πŸ‡²πŸ‡½Mexico5.8%+10.0%15.8%
πŸ‡¨πŸ‡¦Canada5.8%+10.0%15.8%
πŸ‡©πŸ‡ͺGermany5.8%+10.0%15.8%
πŸ‡―πŸ‡΅Japan5.8%+10.0%15.8%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8481.80.90Lower: 37% vs 40.8%

If for vacuum pumps/compressors

UHV-compatible design may align with vacuum machinery parts in 8481.

8479.89Lower: 12.5% vs 40.8%

If integral to vacuum processing machines

Parts of semiconductor vacuum equipment classify with the machines.

8482.99.05Higher: 44.9% vs 40.8%

If standard vacuum-tolerant ball bearings

Non-specialized vacuum versions use ball-specific subheading.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

β€’ Certify outgassing rates and vacuum bake specs for UHV compatibility proof

β€’ Reference multiple statistical note applications (pullers, grinders, slicers)

β€’ Prevent 8487 misclassification by documenting bearing-specific design

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Hardened Steel Inner Ring for Crystal Puller Bearings

High-hardness alloy steel inner ring for thrust ball bearings in Czochralski crystal pullers, enabling rotation of the seed crystal during monocrystalline silicon boule growth. Essential for maintaining precise speeds under extreme thermal conditions in semiconductor material production. Falls under 8482.99.25 as an other bearing ring not specified elsewhere.

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High-Temp Outer Race for Czochralski Puller Thrust Bearings

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