Importers of HS 8482.50 (other cylindrical roller bearings, including cage and roller) from Japan actually paid 15.3% on the taxed portion of the value in 2026-06 — 14.74% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 5.8%. Over the window the rate on the taxed portion moved 5.8% → 15.3%, with the largest single step +8.4pp in 2025-05. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 5.8% — importers actually paid 15.3%, so the trade-war overlay added 9.5 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8482.50", origin: "Japan") · see it at trimtabist.com/tariffs
HS 8482.50. The schedule base rate is 5.8%; importers from Japan actually paid 15.3% on the dutiable value in 2026-06 — the trade-war overlay added 9.5 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 5.8% (2023-07) → 15.3% (2026-06), largest single step +8.4pp in 2025-05.
Japan's lower duty (14.74% vs 38.09%) lets it price up to 20.4% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $10.8/kg vs $25.7/kg (duty in, freight out).
12 Chapter-99 measures name Japan; scope mapping is partial (several annexes are PDFs) — absence never means exemption. They do not sum, and some are product-specific — the collected rate above is the composed truth.
All goods from Japan · the whole tariff ledger · reproduce: tariff_story(hs: "8482.50", origin: "Japan") via /connect. Not customs or legal advice.