Ceramic bearings
Ceramic wares for laboratory, chemical or other technical uses; ceramic troughs, tubs and similar receptacles of a kind used in agriculture; ceramic pots, jars and similar articles of a kind used for the conveyance or packing of goods: > Ceramic wares for laboratory, chemical or other technical uses: > Other: > Other > Ceramic bearings
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 6909.19.50.10
Zirconia Ceramic Ball Bearings
High-precision zirconia ceramic ball bearings designed for laboratory equipment and chemical processing machinery. Fired from zirconium oxide at high temperatures, they offer exceptional hardness, corrosion resistance, and low friction for technical applications. Classified under HTS 6909.19.50.10 as ceramic wares for laboratory, chemical, or other technical uses specifically as bearings.
Silicon Nitride Ceramic Roller Bearings
Silicon nitride ceramic rollers for high-speed technical applications in chemical pumps and lab centrifuges. These fired ceramic components provide superior wear resistance and thermal stability in harsh environments. HTS 6909.19.50.10 covers them as ceramic wares for chemical or technical uses.
Alumina Ceramic Thrust Bearings
Aluminum oxide (alumina) ceramic thrust bearings for precision instruments in chemical analysis labs. Fired to achieve high compressive strength and electrical insulation for technical operations. Fits HTS 6909.19.50.10 for ceramic bearings in laboratory/chemical uses.
Silicon Carbide Ceramic Sleeve Bearings
Silicon carbide ceramic sleeve (bushings) bearings for corrosive chemical processing equipment. High-fired for extreme hardness and chemical inertness in technical applications. Classified as ceramic bearings under HTS 6909.19.50.10.
Zirconia Toughened Alumina Bearing Balls
ZTA (zirconia toughened alumina) ceramic balls for high-load technical bearings in laboratory stirrers. Composite ceramic fired for enhanced fracture toughness in chemical environments. HTS 6909.19.50.10 applies to these ceramic technical bearings.
Boron Nitride Ceramic Bearing Rollers
Boron nitride ceramic rollers for vacuum laboratory systems and chemical reactors. Hexagonal BN structure fired for lubricity and thermal shock resistance in technical uses. Covered by HTS 6909.19.50.10 as ceramic bearings.
Ceramic Hybrid Deep Groove Ball Bearings
Deep groove bearings with ceramic balls and steel races imported as technical ceramic components for chemical machinery. Zirconia or silicon nitride balls provide key anti-corrosion properties. Classed under HTS 6909.19.50.10 for the ceramic bearing elements.
Titania-Doped Ceramic Bearing Inserts
TiO2-doped alumina ceramic inserts for self-lubricating technical bearings in chemical agitators. Fired with dopants for photocatalytic properties in lab settings. HTS 6909.19.50.10 for these specialized ceramic bearings.
Macor Machinable Ceramic Bearing Bushes
Macor glass-ceramic machinable bushes for prototype lab bearings and chemical fixtures. Fired microcrystalline structure allows post-firing machining for technical precision. Under HTS 6909.19.50.10 as ceramic technical bearings.
Reaction-Bonded Silicon Carbide Bearing Races
RBSC ceramic races for custom technical bearings in chemical processing plants. Reaction-bonded and fired for dimensional stability in aggressive environments. Classified HTS 6909.19.50.10 for ceramic bearing components.