Standard International Trade Classification
U.S. imports of Gear Cutting, Gear Grinding & Gear Finishing Machines, Metalworking (SITC 73175) totaled $6.8M in August 2026, imported from 12 countries.
Importers of Gear Cutting, Gear Grinding & Gear Finishing Machines, Metalworking paid $616K in duties in August 2026, an average duty rate of 9.09% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Gear Cutting, Gear Grinding & Gear Finishing Machines, Metalworking imports of $6.8M in August 2026 ran 15% below the year-to-date monthly average of $8.0M.
Last updated: August 2026 dataGear cutting, grinding, and finishing machines occupy a specialized niche within metalworking capital equipment, producing the involute tooth profiles required for power-transmission gears used in automotive, wind-energy, and industrial gearbox applications. The SITC 73175 heading encompasses hobbing machines, gear shapers, gear grinders, and gear-lapping equipment—each suited to different tooth geometries and surface-finish requirements. Buyers should verify whether a machine is configured for soft-cutting (pre-heat-treat) or hard-finishing (post-heat-treat) operations, as this distinction affects both the machine's classification and its suitability for a given production process.
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18 import shipments a month
Yes. SITC 73175 groups gear cutting (including hobbing and shaping), gear grinding, and gear finishing machines together under a single heading because all three perform operations specifically directed at forming or refining gear tooth profiles. The distinction between them matters for technical specification and procurement, but not for SITC classification at this level.
Standard commercial documentation—commercial invoice, packing list, and bill of lading—is required. For high-value capital equipment, a detailed technical specification sheet identifying the machine's function, capacity (module range, workpiece diameter), and CNC control type supports accurate classification. Some gear grinding machines may also require an Export Control Classification Number (ECCN) review by the exporting country, particularly if they meet certain precision thresholds under dual-use export control regimes.
Basic heading 456 of 642 in section 7
Basic heading 73175 · $6.8M of $172.0B
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Imports · August 2026
origin
Germany and Japan together supply 86% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$6.8MYoY · free account
Exports
$1.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $76.5M of Gear Cutting, Gear Grinding & Gear Finishing Machines, Metalworking.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.