32B Metric Roller Chain Sprocket

32B metric roller chain sprocket at 50.8mm (2 inch) pitch — the largest standard ISO metric chain sprocket. For the most extreme heavy-duty industrial drives including large dredgers, heavy mining conveyors, and steel mill applications. 4140 alloy steel with induction-hardened teeth. ISO/R 606.

Descrição

32B Metric Roller Chain Sprocket — The Largest Standard ISO Metric Sprocket

The 32B at 50.8mm (2 inch) pitch is the largest standard ISO metric roller chain sprocket. Reserved for the most extreme industrial applications where no other single pitch can deliver the required load capacity. Used in large-scale dredging, heavy mining overland conveyors, and steel mill primary drives. Available primarily in simplex (32B-1) from 9 to 57 teeth. 4140 alloy steel is standard for this pitch.

32B largest ISO sprocket

Specifications

Parâmetro 32B-1
Tom 50.8 mm (2″)
Roller Diameter 29.21 mm
Internal Width 30.99 mm
Tooth Count 9 – 57T
Material 4140 Alloy Steel (standard) / C45

Features

◆ Maximum available ISO metric pitch — no larger standard size exists

◆ 4140 alloy steel as standard — 655-900 MPa for extreme shock and fatigue

◆ HRC 40-50 induction hardened teeth — maximum abrasion resistance

◆ Split hub and segmental rim for field maintenance on largest equipment

◆ QD bushed versions for bores up to 150mm+

◆ Full EN 10204 Type 3.1 traceability, ISO 9001:2015 certified

Applications

Large-scale dredging equipment, heavy mining overland conveyors exceeding 2km, steel mill primary rolling drives, and port bulk terminal main conveyor drives. Specified where the application requires the absolute maximum single-chain torque available in the ISO metric standard.

32B heavy mining

Reviews

“32B simplex on our main dredger chain. Custom 4140 with full material cert. Performing perfectly under extreme cyclic loading.” ★★★★★

Dredging Engineer, Townsville, Australia

“The largest sprocket in our fleet. Ever-Power machined a custom bore to our exact shaft spec. Fit first time.” ★★★★★

Heavy Equipment Manager, Kalgoorlie, Australia

“32B for our steel mill coil line. Heavy-gauge teeth are robust. No premature wear after 8 months.” ★★★★☆

Rolling Mill Superintendent, Rizhao, China

“Segmental rim 32B replaced during our annual shutdown. Reduced sprocket change time by 50%.” ★★★★★

Maintenance Planner, BHP site, Australia

“Professional documentation with every order. Material certs, inspection reports, everything we need for audits.” ★★★★★

Quality Manager, Rio Tinto site, Australia

Perguntas frequentes

32B vs ANSI #160?
Both 50.8mm pitch. Different roller and width specs. Not interchangeable.
Duplex available?
32B duplex can be manufactured on request for specific tooth counts. Contact us with requirements.
What material is standard?
4140 alloy steel is standard for 32B due to the extreme loads this pitch is designed for. C45 available for lower-load applications.
Max bore?
Up to 150mm+ with QD bushings on larger tooth counts. Plain bore to ~120mm.
Quantidade mínima de encomenda?
One piece with full 4140 material cert and dimensional inspection report.
chain

32B Chains

bushing

QD Bushings

✅ ISO 9001:2015 ✅ ISO/R 606 ✅ DIN 8187 ✅ EN 10204 Type 3.1

Ever-Power Australia: Full-range power transmission manufacturer. 15+ years, 3,200+ SKUs, CNC precision, engineering support.

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