20A / ASA 100 Reinforced Roller Chains According to DIN 8188
20A / ASA 100 reinforced roller chains (1 1/4″ × 3/4″), also known as high-strength chains, are a specialized type of drive chains. Like standard roller chains, they are manufactured according to ISO 606 (DIN 8188, ANSI B29.1), meaning they belong to the American A-series.
The chains consist of outer links with pins and inner links with enhanced bushes, on which freely rotating rollers are mounted. The chains are made of steel. Thanks to their design and the materials used, they offer significantly higher fatigue strength than standard roller chains. They also provide excellent wear resistance, ensuring a long service life.
The standard design of 20A / ASA 100 reinforced chains includes simplex, duplex, and triplex variants.
20A-1 / ASA 100-1 (Simplex)
20A-2 / ASA 100-2 (Duplex)
20A-3 / ASA 100-3 (Triplex)
Chains Construction
- Inner link – high-precision, wide-waisted profile
- Outer link – high-precision, wide-waisted profile
- Special alloy steel pin (case-hardened or through-hardened according to type)
- Seamless special steel bush with optimally cylindrical shape and high wear resistance
- Through-hardened seamless roller
Chains Fields of Use
20A / ASA 100 reinforced roller chains according to DIN 8188 are designed for applications with higher mechanical loads, where standard roller chains might not meet requirements for strength and fatigue resistance.
They are most commonly used as drive chains in demanding operating conditions but can also be fitted with attachments or other auxiliary components for material handling and lifting applications.
Chains Material
Steel.
Chains Code Description
Example:
20A-1 KettenWulf HFS (Reinforced, ASA 100-1, 1 1/4″ × 3/4″, DIN 8188) - 5 m Pack
| Code Part | Description |
|---|---|
| 20A |
Chain type (ISO 606 / DIN 8188, A-series) |
| 1 |
Simplex roller chain |
| KettenWulf |
Manufacturer |
| HFS |
Chain type according to the manufacturer's designation |
| Reinforced |
Chain design |
| ASA 100-1 |
Chain designation according to ANSI B29.1 standard (USA) |
| 1 1/4″ × 3/4″ |
Pitch × internal width |
| DIN 8188 |
American chain standard (A-series) |
| 5 m Pack |
Standard pack length |
Documents for Download
Related Products
Sprockets for DIN 8188 ASA/ANSI Roller Chains (A-Series)
For DIN 8188 roller chains (04C, 06C, 08A, 10A, 12A, 16A, 20A, 24A). In simplex, duplex, and triplex design. With a hub or flat design.
Universal Chain Tensioners
Sliding blocks, sprockets with screw and idler sprockets for tensioning of industrial roller chains during operation.
Sliding Chain Guides for Separate Mounting
Standard chain sliding guides fixed separately directly on the machines.
Chain Wear Gauges
Mechanical devices designed to roller chains, fleyer chains and other types of lifting and drive chains wear detection.