20A / ASA 100 Plate Wheels for DIN 8188 Roller Chains (A-Series)
20A / ASA 100 plate wheels (flat sprockets without hub) are designed for drives with all types of 20A / ASA 100 (1 1/4″ × 3/4″) roller chains of the so-called American series (A-series), standardized to ISO 606 (DIN 8188, ANSI B29.1). They are available in simplex and duplex designs.
20A-1 / ASA 100-1 (Simplex)
20A-2 / ASA 100-2 (Duplex)
Typical Applications
The 20A / ASA 100 plate wheels are intended for general use in medium-duty applications.
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:
20A-1-38-P (ASA 100, 1 1/4” × 3/4”) - 38 Teeth, without Hub (Steel)
| Code Part | Description |
|---|---|
| 20A | Chain type |
| 1 | Simplex design |
| 38 | Number of teeth |
| P | Flat design without a hub (also known as a plate wheel or chain disc) |
| ASA 100 | Chain designation according to ANSI B29.1 standard (USA) |
| 1 1/4” × 3/4” | Chain pitch × inner width |
| 38 Teeth, without Hub (Steel) | Sprocket design and material |
Documents for Download
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