Precision Angular Contact Ball Bearing 7205B
The 7205B is a single-row angular contact ball bearing designed for high-speed applications with a 25mm bore and 52mm outer diameter, featuring a 15-degree contact angle. It supports combined radial and axial loads, making it ideal for machine tool spindles in semiconductor wafer grinders. Classified under HTS 8482.10.5028 as an angular contact bearing not specified elsewhere.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed solely for radial loads
Radial ball bearings without significant axial load capacity fall under the radial bearing subheading.
If imported as part of a complete spindle assembly
Bearings incorporated into machinery parts are classified as such under parts of bearings.
If for semiconductor wafer processing equipment
Statistical provisions may apply special rates for bearings in semiconductor manufacturing machines.
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Import Tips & Compliance
• Verify bearing contact angle exceeds 10 degrees for angular contact classification; provide manufacturer specs on load ratings
• Common pitfall: misclassifying as radial bearings under 8482.10.5012
• Obtain end-use certificates for semiconductor equipment exemptions
Related Products under HTS 8482.10.50.28
High-Speed Angular Contact Bearing 7008C
The 7008C angular contact ball bearing has a 40mm bore, ceramic balls for reduced friction, and 15-degree contact angle, optimized for spindle speeds over 20,000 RPM. Used in crystal grinders for semiconductor boule preparation to achieve precise diameters. Falls under HTS 8482.10.5028 as other angular contact bearings.
Ceramic Hybrid Angular Contact Bearing 71906
Model 71906 features steel rings with silicon nitride ceramic balls, 30mm bore, for ultra-high speeds in wafer slicing saw spindles. The angular contact design handles thrust from cutting forces on semiconductor wafers. HTS 8482.10.5028 covers this other angular contact type.
Duplex Angular Contact Bearing Set 7204B-2
Preloaded duplex pair 7204B-2 angular contact bearings (20mm bore) for rigid spindle mounting in wafer lapping machines. Provides matched preload for flatness control in semiconductor wafer polishing. Classified as other angular contact under HTS 8482.10.5028.
Super Precision Angular Contact 7014A
Super precision class 7014A (70mm bore) angular contact bearing with 25-degree contact angle for heavy axial loads in float zone crystal pullers. Ensures vibration-free rotation for monocrystalline semiconductor boule growth. HTS 8482.10.5028 for other angular contact bearings.
Flanged Angular Contact Bearing F71908
Flanged model F71908 angular contact ball bearing (40mm bore) for direct spindle mounting in wafer polishers. Flange aids precise alignment for semiconductor surface flatness tolerances. Falls under other angular contact bearings HTS 8482.10.5028.
Four-Point Angular Contact Bearing QJ308
QJ308 four-point contact ball bearing (40mm bore) accommodates axial loads in both directions, used in crystal boule grinders for semiconductor preparation. Single row design supports radial/axial combinations per statistical notes. HTS 8482.10.5028 classification.