Mô tả
ANSI 40 roller chain is the most widely stocked short-pitch roller chain in North American and export industrial markets. Built to ASME B29.1 with a 1/2 inch (12.70 mm) pitch, the 40 series covers simplex (40-1), duplex (40-2), and triplex (40-3) strand configurations, allowing load capacity to be doubled or tripled without changing the pitch or sprocket centre distance. Ever Power manufactures all three strand configurations from medium-carbon alloy steel, with case-hardened pins at 58–64 HRC, through-hardened bushings at 50–58 HRC, and shot-peened rollers for extended fatigue life. Standard finish is rust-preventive oil; stainless steel and nickel-plated variants are available on request.
Full Specification Table — ANSI 40 Series
| Số chuỗi | Strands | Bước ren (mm) | Đường kính con lăn (mm) | Chiều rộng bên trong (mm) | Đường kính chốt (mm) | Độ bền kéo tối thiểu (kN) | Trọng lượng (kg/m) |
|---|---|---|---|---|---|---|---|
| 40-1 | 1 | 12.70 | 7.92 | 7.85 | 3.96 | 17.8 | 0.62 |
| 40-2 | 2 | 12.70 | 7.92 | 7.85 | 3.96 | 35.6 | 1.20 |
| 40-3 | 3 | 12.70 | 7.92 | 7.85 | 3.96 | 53.4 | 1.78 |
Per ASME B29.1-2011. ISO 08A-1 cross-reference: same pitch, roller diameter differs (8.51 mm vs 7.92 mm) — not interchangeable on the same sprocket.
ISO Cross-Reference: ANSI 40-1 uses a 7.92 mm roller diameter. The nearest ISO equivalent (08A-1) has a 7.95 mm roller — functionally the same pitch but verify before fitting to existing sprockets. Not interchangeable with ISO 08B-1 (8.51 mm roller).
Material and Construction
Side Plates
SAE 1040–1050 cold-stamped medium-carbon steel. Work-hardened surface resists fatigue crack initiation at pitch holes.
Ghim
Gas-carburised alloy steel. Surface hardness 58–64 HRC, core hardness 35–45 HRC for fatigue and impact resistance.
Ống lót
Through-hardened carbon steel, 50–58 HRC. Controlled interference press-fit prevents rotation under load without cracking.
Con lăn
Shot-peened carbon steel, 58–64 HRC. Compressive residual stress extends fatigue life by 20–35% vs unpeened rollers.
✓
Proof-load tested
50% min. tensile
●
ISO 9001:2015
certified production
▸
EN 10204 2.1 cert
3.1 on request
◆
Full lot traceability
to mill certificate
Typical Applications — ANSI 40 Series
Ordering and Supply
Stock lengths
3 m, 5 m, 10 ft reels • Cut-to-length available • Clip-type connecting links in stock for all strand counts
Stainless variants
SS304 and SS316L available • 3–5 working day lead time • EN 10204 3.1 mill cert standard
Custom spec
Attachment plates, extended pins, special coatings • 50 m minimum • 4–6 week lead time from drawing approval
Request a quote on ANSI 40 roller chain
Standard sizes quoted same day • UK delivery 1–3 working days • Custom spec 4–6 weeks
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