The ANSI 40 Roller Chain is a widely used American Standard roller chain designed for light- to medium-duty power transmission systems. With a 12.7 mm (1/2-inch) pitch, standardized dimensions, and excellent durability, this industrial roller chain delivers reliable performance across a broad range of industrial and agricultural applications. In this guide, Belota explains what an ANSI 40 roller chain is, its standard technical specifications, typical applications, and how to select the right chain for your equipment.
What Is an ANSI 40 Roller Chain?
The ANSI 40 Roller Chain is a roller chain manufactured according to ANSI (American National Standards Institute) standards. Featuring a 12.7 mm (1/2-inch) pitch, it is commonly used in light- to medium-duty drive systems where dependable performance and easy maintenance are essential.
ANSI 40 roller chains are manufactured from high-strength alloy steel or stainless steel, providing excellent wear resistance and load capacity. For improved corrosion protection, the chain can also be supplied with nickel-plated or chrome-plated finishes, offering the following benefits:
- Increased hardness and longer service life
- Excellent corrosion and rust resistance
- Reliable performance in harsh industrial environments
ANSI 40 Roller Chain Specifications
Belota stocks ANSI 40 roller chains in single-strand, double-strand, triple-strand, four-strand, and five-strand configurations.
| Specification | Symbol | 40-1 | 40-2 | 40-3 | 40-4 | 40-5 |
|---|---|---|---|---|---|---|
| Pitch (mm) | P | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 |
| Inner Width (mm) | W | 7.95 | 7.95 | 7.95 | 7.95 | 7.95 |
| Roller Diameter (mm) | D | 7.95 | 7.95 | 7.95 | 7.95 | 7.95 |
| Pin Diameter (mm) | d | 3.59 | 3.59 | 3.59 | 3.59 | 3.59 |
| Plate Thickness (mm) | T | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
| Plate Height (mm) | H | 11.70 | 11.70 | 11.70 | 11.70 | 11.70 |
| Width Over Bearing (mm) | L2 | 17.55 | 31.95 | 46.35 | 60.75 | 75.15 |
| Overall Width (mm) | L | 18.95 | 33.35 | 47.75 | 62.15 | 76.55 |
| Transverse Pitch (mm) | C | 14.40 | 14.40 | 14.40 | – | – |
| Average Tensile Strength (kN) | – | 18.1 | 36.3 | 54.4 | 72.6 | 90.7 |
| Maximum Working Load (kN) | – | 3.63 | 6.17 | 9.11 | 11.96 | 14.12 |
| Weight (kg/m) | – | 0.61 | 1.19 | 1.79 | 2.38 | 2.96 |
Applications of ANSI 40 Roller Chain
ANSI 40 roller chains are widely used in industrial power transmission and conveying systems thanks to their durability and standardized dimensions.
- Industrial power transmission: Commonly used in machine tools, metalworking equipment, stamping machines, and production machinery requiring stable and reliable power transmission. Compared with the ANSI 35 Roller Chain, the ANSI 40 chain offers a higher working load capacity, making it better suited for more demanding applications.
- Conveyor systems: Ideal for conveyor lines transporting products, components, and raw materials in manufacturing plants, warehouses, and logistics centers.
- Food processing and packaging: Used in automatic packaging machines, food processing lines, and filling equipment where smooth, dependable operation is required.
- Agricultural machinery: Suitable for harvesters, livestock feed mixers, grain handling equipment, and other agricultural drive systems operating in dusty environments.
- Automation equipment: Applied in automated production lines, assembly machines, and motion control systems in modern manufacturing facilities.
Selection Guide for ANSI 40 Roller Chain
Selecting the correct roller chain helps maximize transmission efficiency and extend service life. When choosing an ANSI 40 chain, consider the following specifications:
- Roller diameter
- Inner width
- Overall chain width
- Plate height and thickness
- Pin diameter
- Tensile strength and required working load
It is also important to evaluate the operating environment, including speed, load, lubrication conditions, and exposure to dust, moisture, or corrosive substances, to ensure optimal chain performance.
Buy Genuine ANSI 40 Roller Chain from Belota
If you're looking for high-quality ANSI 40 roller chains at competitive prices, Belota is your trusted industrial chain supplier. We stock a complete range of ANSI roller chains to meet the needs of industrial power transmission and conveyor systems.
Why choose Belota?
- Genuine products with guaranteed quality
- Complete range of ANSI roller chain sizes in stock
- Fast nationwide delivery
- Competitive pricing
- Professional technical consultation to help you select the correct chain
- Clear warranty and reliable after-sales support
Need a quote for an ANSI 40 Roller Chain?
Contact Belota today at +84 917 657 946 via Phone, WhatsApp, or Zalo for expert technical assistance and competitive pricing.
