Boron Nitride Ceramic Bearing Rollers from Mexico
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.
Duty Rate — Mexico → United States
14%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Certify non-cermet composition; high metal content shifts to 8113
• Use invoices specifying 'technical ceramic bearings for laboratory' to guide CBP
• Avoid Chapter 95 toy classification by documenting industrial tolerances