Ceramic Hybrid Bearing Separator
A high-precision ceramic separator for hybrid bearings combining steel races with ceramic balls, used in ultra-high-speed wafer polishers. Falls under HTS 8482.99.65 as 'other' parts, excluding iron/steel cages and due to advanced material not fitting specific subheadings. Critical for minimizing contamination in semiconductor processing.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as unfinished ceramic components
Raw or semi-worked ceramic articles precede finished machine parts.
If classified as balls or rollers themselves
The rolling elements have a distinct earlier provision.
If integral to precision measuring/polishing apparatus
Semiconductor processing/testing equipment shifts to Chapter 90.
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Import Tips & Compliance
• Obtain material safety data sheets (MSDS) certifying ceramic composition (e.g
• silicon nitride) for classification
• Document compatibility with specific bearing types (e.g
• 608 series) to avoid general parts headings
• Watch for ITAR restrictions if used in advanced semiconductor tools; declare technical parameters accurately
Related Products under HTS 8482.99.65
Stainless Steel Ball Bearing Cage
A precision-machined stainless steel cage designed to hold and space steel balls within a ball bearing assembly. It falls under HTS 8482.99.65 as a part of ball or roller bearings, specifically categorized as 'other' parts excluding rings, cages of iron/steel for balls ≥30mm, or thrust ball races. This component ensures proper ball alignment and reduces friction during operation.
Brass Roller Bearing Retainer
A non-ferrous brass retainer that separates and positions rollers in a cylindrical roller bearing. Classified under HTS 8482.99.65 as 'other' bearing parts due to its material (not iron/steel) and exclusion from specific outer ring or thrust race provisions. Essential for maintaining roller spacing in high-speed applications.
Aluminum Outer Bearing Ring Spacer
An aluminum spacer ring that positions the outer race in precision angular contact bearings. It qualifies for HTS 8482.99.65 as an 'other' part, not a full ring or iron/steel cage, used in semiconductor wafer grinders for vibration control. Ensures axial load distribution without qualifying for specific exclusions.
Precision Plastic Bearing Retainer
Engineered polyimide retainer for miniature ball bearings in wafer slicing saw spindles. HTS 8482.99.65 covers this as 'other' non-metallic bearing part, excluded from metal-specific subheadings, vital for low-outgassing in cleanrooms.
Composite Roller Bearing Spacer
Carbon fiber-reinforced polymer spacer for tapered roller bearings in wafer grinders. Under HTS 8482.99.65 as 'other' part due to composite material and non-excluded design, supports flatness control in semiconductor prep.
Titanium Needle Roller Bearing Cage
Lightweight titanium cage for needle roller bearings in high-RPM crystal puller spindles. Classified in HTS 8482.99.65 as 'other' bearing parts, not iron/steel and under 30mm ball size exclusion, ideal for semiconductor boule production equipment.