28A-1 KettenWulf HFS (Reinforced, ASA 140-1, 1 3/4″ × 1, DIN 8188) - 5 m Pack (+ 2 Connecting Links)
Roller Chain
Specifications
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.
Construction
- Inner link
- Outer link
- Pin
- Bushing
- Roller
Typical Applications
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.
Materials
Steel.
Documents for Download
Dimensions and Parameters of DIN 8188 Standard Simplex Roller Chains
TYMA CZ Data Sheets
Czech and English (PDF 247.71 kB)
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Questions about This Product?
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Chain Manufacturer Profile
KettenWulf is a German manufacturer of conveyor chains, drive chains, and sprockets. Its high-quality products are valued by customers worldwide across a wide range of industries – from mechanical engineering, automotive, and the steel industry to construction, water treatment, paper production, and wood processing.
Today, KettenWulf develops, manufactures, and distributes standard as well as custom solutions with more than 1,400 employees at ten sites across Europe, the Americas, and Asia.
We are an authorized distributor of conveyor chains and drive chains from KettenWulf Betriebs GmbH.