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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 12 mm |
| Material | Steel |
| No. Of Teeth | 20 |
| Outside Dia. | 88.55 mm |
| Pitch | 12.7 mm |
| Pitch Dia. | 81.184 mm |
Shipping Info:
| Ship weight (kg) | 0.81 |
| Ship height (cm) | 2.79 |
| Ship length (cm) | 8.86 |
| Ship width (cm) | 8.86 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Number Of Teeth | Length Through Bore | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|
![]() |
08B11 | 45.078 mm | 52.444 mm | - | 25 mm | 12.7 mm | €57.20 | |
![]() |
08B12 | 49.069 mm | 56.435 mm | 12 | 28 mm | 12.7 mm | €60.96 | |
![]() |
08B17 | 69.116 mm | 76.482 mm | 17 | 27.991 mm | 12.7 mm | €76.15 | |
![]() |
08B18 | 73.136 mm | 80.502 mm | 18 | 27.991 mm | 12.7 mm | €81.18 | |
![]() |
08B21 | 85.211 mm | 92.577 mm | 21 | 27.991 mm | 12.7 mm | €107.34 | |
![]() |
08B23 | 93.268 mm | 100.634 mm | 23 | 28 mm | 12.7 mm | €121.42 | |
![]() |
08B38 | 153.791 mm | 118.741 mm | 38 | 35.001 mm | 12.7 mm | €169.37 |
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MARTIN SPROCKET 08B20 Roller Chain Sprocket, 08B-1 Chain, Stock Bore, 20 Teeth, 81.184 mm Pitch Dia., Steel
€97.07 /unit







