20B Roller Chains According to DIN 8187
20B roller chains (1 1/4″ × 3/4″) are among the most common drive chains. They are standardized according to ISO 606 (DIN 8187), meaning they belong to the European B-series.
The chains consist of outer links with pins and inner links with bushes, on which freely rotating rollers are mounted. The chains are made of steel. The exact grade of steel, production method and heat treatment of the steel of the individual parts vary by chain type, size and manufacturer.
The standard design of 20B chains includes simplex, duplex and triplex variants.
KettenWulf Now Our Main Roller Chain Brand – KÖBO in Final Stock
After more than 15 years of offering standard roller chains from the German brand KÖBO, we have decided to discontinue their availability as of April 2025. Remaining stock will be sold off, and no further orders will be possible. These chains are being replaced by products from another German manufacturer – KettenWulf.
Why the change? In recent years, KÖBO has focused on heavy-duty conveyor chains for specialised applications and no longer offers a sufficient range or delivery flexibility in the field of standard roller chains.
KettenWulf roller chains meet the high demands of customers across all areas of application. They offer consistent quality, high load capacity, long service life and, last but not least, a reasonable price – everything you expect from a reliable solution.
Chains Construction
- Inner link
- Outer link
- Pin
- Bush
- Roller
Chains Fields of Use
20B roller chains according to DIN 8187 are designed for general applications, particularly in medium industry.
They are primarily used as drive chains but can also be fitted with attachments for material handling and lifting.
Chains Material
Steel.
Chains Code Description
Example:
20B-2 KettenWulf KW (1 1/4″ × 3/4″, DIN 8187) - 5 m Pack
| Code Part | Description |
|---|---|
| 20B |
Chain type (ISO 606 / DIN 8187, B-series) |
| 2 |
Duplex roller chain |
| KettenWulf |
Manufacturer |
| KW |
Chain type according to the manufacturer's designation |
| 1 1/4″ × 3/4″ |
Pitch × internal width |
| DIN 8187 |
European chain standard (B-series) |
| 5 m Pack |
Standard pack length |
Documents for Download
Dimensions and Parameters of DIN 8187 Roller Chains
TYMA CZ Data Sheets
Czech and English (PDF 371.93 kB)
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Standard chain sliding guides fixed separately directly on the machines.
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