On request
MARTIN SPROCKET & GEAR
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MARTIN SPROCKET & GEAR 20B12
#20B12
On request
Stock Bore Sprocket - Metric - B Style - 20B / 1-1/4 in, B Hub, 12 Teeth, 25 mm Stock Bore, Steel Material
Price on request — a consultant will confirm lead time and terms.
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MARTIN SPROCKET & GEAR — MARTIN SPROCKET & GEAR 20B12
- Metric B Style sprockets are flat sprockets with a hub extension on one side.
- These plain bore sprockets can easily be bored to a metric or standard size to fit your application.
- Keyways, set screws and harden teeth are quick alterations that can be made.
- Tolerances meet or exceed ISO standards
- Manufactured of high carbon steel
Specifications
| Brand | MARTIN SPROCKET & GEAR |
| Category | STOCK BORE SPROCKETS |
| Chain number & pitch | 20B / 1-1/4 in |
| Caliper diameter | 103.6 mm |
| Chain / sprocket type | Metric Roller Chain |
| Pitch diameter | 122.7 mm |
| Hub outside diameter | 90 mm |
| Maximum bore diameter | 63 mm |
| Hub style | B |
| Tooth width | 19 mm |
| Number of teeth | 12 |
| Tooth thickness | 19 mm |
| Bore type | Reboreable |
| Chain roller diameter | 19.05 mm |
| Bore diameter | 25 mm |
| Chain roller width | 19.56 mm |
| Number of strands across | 1 |
| Storage dimension height | 1.89 mm |
| Material | Steel |
| Storage dimension length | 5.64 mm |
| Number of hubs | 1 |
| Storage dimension width | 5.64 mm |
| Length through bore | 48 mm |
| Surface treatment | Protective Coating |
| Hardened teeth | Non-Hardened Teeth |
| Manufacturer upc number | 697950403724 |
| Pitch type | Single |
| Hub diameter | 90 mm |
| Weight | 1.91 lbs |
| Outside diameter | 143.3 mm |
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