Harmonized System
U.S. imports of Roller Chain of Iron or Steel (HS 731511) totaled $15.7M in August 2026, imported from 43 countries.
Importers of Roller Chain of Iron or Steel paid $9.3M in duties in August 2026, an average duty rate of 55.31% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataRoller chain — defined by its cylindrical rollers that engage sprocket teeth to transmit power — is a precision mechanical component with tight dimensional tolerances governed by ISO and ANSI standards. The US schedule subdivides the heading into motor vehicle roller chain (7315110005), bicycle chains (7315110010), other chains with pitch not over 50 mm and more than three parts per pitch (7315110045), and a residual line (7315110060). Japan leads supply under this heading, reflecting the dominance of Japanese manufacturers in high-precision drive chain for industrial and automotive applications; China is the second-largest source and is subject to Section 301 tariffs. Importers sourcing bicycle chains should note that pitch and parts-per-pitch specifications determine the correct 10-digit line.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.3K import shipments a month
Bicycle chains must have a pitch not over 50 mm and more than three parts per pitch, and must be identifiable as bicycle-specific by design. Motor vehicle roller chains (7315110005) are distinguished by their intended use in automobiles, trucks, or motorcycles. When a chain meets the dimensional criteria but its end use is ambiguous, the importer should document the intended application and, if necessary, seek a CBP binding ruling.
Japanese manufacturers such as Tsubaki and Daido have established global reputations for dimensional precision, fatigue resistance, and quality consistency that meet OEM specifications in automotive, food processing, and industrial machinery. Many US equipment manufacturers specify Japanese-origin chain by brand or JIS/ANSI tolerance class, creating a quality-differentiated market segment where price competition from other origins is limited.
Subheading 1 of 8 in heading 7315
Subheading 731511 · $15.7M of $46.1M
ImportsExports
Imports
$15.7MYoY · free account
Exports
$8.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $195.2M of Roller Chain of Iron or Steel and exported $106.3M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 731511 — Roller Chain of Iron or Steel, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7315110060 | Other Roller Chain of Iron or Steel NESOI | $10.3M | 56.06% | 99.89% | $5.8M |
| 7315110045 | Oth Roller Chain Ir/St Nov 50mm Ptch Mrth 3pts/Ptc | $4.0M | 57.37% | 100.00% | $2.3M |
| 7315110005 | Roller Chain for Motor Vehicles, of Iron or Steel | $1.8M | 47.89% | 98.82% | $842K |
| 7315110010 | Bicycle Chains, Ir/St Nov 50mm Ptch Mrth 3pts/Ptch | $721K | 51.23% | 100.00% | $369K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7315110000 | Roller Chain of Iron or Steel | $8.1M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Japan and China together supply 48% of it. China pays 74.8% duty; Japan 49.6%.
customs district
destination
entry
rate provision · imports
0.2% enters free of duty; duty collected equals 55.31% of imports for consumption.