Description
Introduction
The 04B roller chain is a compact, high-efficiency single strand transmission chain designed for light-duty industrial applications. Manufactured to ISO 606 international standards, this chain features precise dimensional tolerances, optimized heat treatment, and superior fatigue resistance. Ideal for conveyors, packaging machines, agricultural equipment, and small motor drives, the 04B roller chain delivers reliable power transmission with minimal maintenance. Made from high-carbon steel (typically C1045 or equivalent), it undergoes quenching & tempering for enhanced hardness and durability. Whether you need a 04B industrial roller chain for OEM integration or replacement, our factory ensures consistent quality and competitive pricing.Key Features
Technical Specifications
| Parameter | Value |
|---|---|
| ISO Chain No. | 04B |
| KMC Chain No. | 04B |
| Pitch (P) | 6.00 mm |
| Inner Width (W) | 2.80 mm (min) |
| Roller Diameter (d1) | 4.10 mm (max) |
| Pin Diameter (d2) | 1.85 mm (max) |
| Pin Length (L) | 7.40 mm (max) |
| Link Plate Width (H) | 5.00 mm (max) |
| Plate Thickness (T/t) | 0.60 mm / 0.60 mm |
| Min. Ultimate Tensile Strength | 306 kgf (≈3.0 kN) |
| Avg. Ultimate Tensile Strength | 320 kgf (≈3.14 kN) |
| Material | Carbon Steel (C1045 or equivalent) |
| Surface Treatment | Shot-peened, black oxide or zinc-plated (optional) |
| Weight per Meter | ~0.095 kg/m |
Key Features
✔️ Precision Engineering for Reliable Performance
Every 04B single strand roller chain is manufactured using CNC-controlled stamping, rolling, and riveting processes. Tight tolerances on pitch (±0.15 mm), roller diameter (±0.05 mm), and pin length guarantee smooth engagement with sprockets — reducing noise, vibration, and premature wear.✔️ Optimized Heat Treatment
Pins and bushings undergo controlled carburizing or through-hardening (HRC 45–55), while rollers are hardened to HRC 50–58. This balanced hardness profile prevents galling and extends service life — critical for continuous-duty applications.✔️ Low Elongation & High Fatigue Resistance
Tested under cyclic loading, our 04B transmission roller chain shows <0.5% elongation after 10⁶ cycles at 50% of ultimate load. The unique link plate geometry minimizes stress concentration, enhancing fatigue endurance.✔️ Standard Compatibility & Easy Installation
Designed to fit all ISO/ANSI 04B sprockets (e.g., 10T–50T). Includes standard connecting links (E-type or offset link) for quick assembly/disassembly. No special tools required.✔️ Factory-Direct Quality & Value
As a certified manufacturer, we eliminate middlemen. Every batch is inspected per ISO 9001 procedures — including dimensional checks, tensile testing, and visual defect screening. Choose high quality 04B chain without premium markup.Applications
The 04B roller chain is widely used in:• Light-duty conveyor systems (food processing, electronics assembly)
• Small agricultural machinery (seeders, trimmers)
• Office equipment (printers, copiers, document feeders)
• Textile machinery (yarn guides, tensioners)
• Medical devices (diagnostic equipment actuators)
• Robotics & automation (linear motion drives, gripper mechanisms)
• HVAC dampers and fan drives
Its compact size (6 mm pitch) and low weight make it ideal where space and inertia are constrained — yet reliability remains non-negotiable.
In-Depth Product Overview
1. Product Design Philosophy
The 04B chain follows the classic ANSI/ISO roller chain architecture: inner plates, outer plates, pins, bushings, and rollers. Its reduced pitch (vs. 05B/06B) allows tighter bending radii and higher sprocket tooth counts — improving torque transfer efficiency in mini-drive systems. Unlike generic “mini chains,” the ISO 606 04B chain maintains full structural integrity under dynamic loads.2. Manufacturing Process
Raw material → Cold heading (pins/bushings) → Precision stamping (plates) → Roller forming → Heat treatment (quench & temper) → Assembly (press-fit + riveting) → Shot peening → Surface coating → Final inspection.Each step is monitored via SPC charts; Cpk ≥1.33 for critical dimensions. Batch traceability (lot number + date code) ensures full accountability.
3. Performance Advantages
Wear Resistance: Hardened rollers reduce abrasive wear by 30% vs. untreated chains.Corrosion Protection: Optional zinc plating (8–12 µm) meets ASTM B633 SC2 requirements.
Quiet Operation: Smooth roller-to-sprocket contact lowers noise by 3–5 dB(A) compared to economy-grade chains.
Extended Life: Field tests show 2× longer service life than non-certified alternatives under identical duty cycles.
4. Supply & Support
We offer:• MOQ: 100 meters (or 10 rolls)
• Lead Time: 7–10 days for standard stock; 15–20 days for custom packaging
• Samples: Free 1-meter samples (freight collect)
• Certifications: ISO 9001, RoHS, REACH compliant
• Packaging: Polybag + cardboard box (moisture-proof), or palletized for bulk orders
• Payment: T/T, LC, PayPal (for samples)
• After-sales: 12-month warranty against manufacturing defects
Frequently Asked Questions (FAQ)
A: No. Pitch mismatch (04B = 6.00 mm; 05B = 8.00 mm) causes severe wear or jamming. Always match chain and sprocket ISO numbers.
A: Up to 1,200 rpm for intermittent duty; 600 rpm for continuous operation (depending on lubrication and load).
A: Not standard — but we can produce AISI 304/316 variants upon request (MOQ 500m). Note: strength drops ~20% vs. carbon steel.
A: Yes — contact sales for 3D models and dimensioned drawings (free for qualified buyers).
Ready to Order?
For bulk quotes, technical support, or sample requests — contact us today. We’re your trusted source for 04B industrial roller chain, engineered for precision, durability, and value.

