04C / ASA 25 Sprockets with Hub for DIN 8188 Roller Chains (A-Series)
04C / ASA 25 sprockets with a hub are designed for drives with all types of 04C / ASA 25 (1/4″ × 1/8″) roller chains of the so-called American series (A-series), standardized to ISO 606 (DIN 8188, ANSI B29.1). They are available in simplex design.
04C-1 / ASA 25-1 (Simplex)
Typical Applications
The 04C / ASA 25 sprockets with a hub are intended for general use in light industry.
Typical applications include power-transmission drives; they are also used in lifting equipment and material-handling systems.
Materials
C43 steel.
Other materials on request.
Sprocket Code Description
Example:
04C-1-32-N (ASA 25, 1/4” × 1/8”) - 32 Teeth, with Hub (Steel)
| Code Part | Description |
|---|---|
| 04C |
Chain type |
| 1 |
Simplex design |
| 32 |
Number of teeth |
| N |
Design with hub |
| ASA 25 |
Chain designation according to ANSI B29.1 standard (USA) |
| 1/4” × 1/8” |
Chain pitch × inner width |
| 32 Teeth, with Hub (Steel) |
Sprocket design and material |

