PEER Chain
PEER Chain 100A21 - ANSI 100, 21T A-Hub
Model: 100A21
PEER Chain 100A21 A-hub roller chain sprocket. Single strand, ANSI #100 (1.25" pitch) chain, 21 teeth. Carbon steel with hardened teeth, black oxide finish standard. ISO 9001 certified manufacturing. Meets ANSI B29.1 standard.
Technical Specifications
| ANSI Number | 100 |
| Teeth | 21 |
| Hub Style | Type A |
| Bore Type | Plain Bore |
| Bore Size | Pilot |
| Bore Range Max | 5.0 |
| Hardened Teeth | Yes |
| Pitch Diameter (in) | 8.387 |
| Outer Diameter (in) | 9.137 |
| Material | Carbon Steel |
| LTB (in) | 0.975 |
| Strand | Single |
| Standard | ANSI B29.1 |
| Finish | Black Oxide |
Manufacturer
PEER Chain
PEER Chain — family-owned manufacturer of ANSI roller chain, PEER Quest solid-bushing chain, and matching sprockets. Serves industrial, agricultural, and material handling applications across ANSI #25–#240.
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