28A-1 KettenWulf HFS (Reinforced, ASA 140-1, 1 3/4” × 1, DIN 8188) - 5 m Pack (+ 2 Connecting Links)
Roller Chain
Chain Parameters
In the TYMA Product Catalogues you can find this material also described with the abbreviation ST.
Chain Description
28A-1 KettenWulf HFS (Reinforced, ASA 140-1, 1 3/4” × 1, DIN 8188) - 5 m Pack (+ 2 Connecting Links) is one of the most common simplex drive chains. It is standardized according to ISO 606 (DIN 8188, ANSI B29.1), meaning it belongs to the American A-series.
The chain consists of outer links with pins and inner links with bushes, on which freely rotating rollers are mounted. The chain is made of steel.
KettenWulf HFS
KettenWulf HFS roller chains are designed for applications with high loads and dynamic impacts. They rank among the top-performing chains on the market.
Thanks to targeted design and manufacturing enhancements, these roller chains significantly exceed the parameters of standard series. With precision punching of the link plates achieving hole straightness of up to 90%, they offer exceptionally strong press fits. The wider waist of the link plates further improves load distribution. As a result, HFS chains deliver approximately 15–20% higher fatigue strength compared to the KW series (equivalent to 70–80% above the ISO 606 standard), while maintaining excellent length accuracy.
Additional improvements in wear resistance come from using advanced materials for bushes and rollers. Solid bushes are made from alloyed case-hardening steel containing chromium, manganese, and molybdenum, ensuring high surface hardness and excellent resistance to friction and shock. Rollers made from structural C35 steel are fully hardened across all sizes.
Chain Construction
- Inner link
- Outer link
- Pin
- Bushing
- Roller
Chain Fields of Use
28A-1 / ASA 140-1 roller chains are designed for general applications, particularly in medium and heavy industry.
They are primarily used as drive chains but can also be fitted with attachments for material handling and lifting.
Chain Material
Steel.
Documents for Download
Dimensions and Parameters of DIN 8188 ASA/ANSI Roller Chains
TYMA CZ Data Sheets
Czech and English (PDF 374.73 kB)
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.
Manufacturer Profile
KettenWulf was founded in 1925 in Kückelheim, Germany. Over the past 90 years, the company has developed from a small-sized factory for sprocket chains into a leading global manufacturer of conveyor chains, drive chains and sprockets.
More than 1400 employees develop, produce and distribute individual solutions in conveying and drive technology for KettenWulf at ten locations in Europe, America and Asia.
The high quality KettenWulf products are used all over the globe in a wide range of industries.