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Product Specifications:
| Item | Roller Chain Sprocket |
| Material | Steel |
| No. Of Teeth | 57 |
| Outside Diameter | 237.91 mm |
| Pitch | 12.7 mm |
| Pitch Dia. | 230.54 mm |
| Pitch Diameter | 230.54 mm |
Shipping Info:
| Ship weight (kg) | 2.43 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 23.8 |
| Ship width (cm) | 23.8 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Number Of Teeth | Length Through Bore | Bushing Type | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|
![]() |
08BTB76 | 307.32 mm | 314.69 mm | - | 50.8 mm | 2012 Taper | 12.7 mm | €363.94 | |
![]() |
08BTB40 | 161.87 mm | 169.23 mm | - | 25.4 mm | 1610 Taper | 12.7 mm | €246.00 | |
![]() |
08BTB38 | 153.79 mm | 161.16 mm | 38 | 25.4 mm | 1610 Taper | 12.7 mm | €237.82 | |
![]() |
08BTB14H | 57.07 mm | 64.44 mm | 14 | 22.23 mm | 1008 Taper | 12.7 mm | €112.29 | |
![]() |
08BTB15H | 61.08 mm | 68.45 mm | 15 | 22.23 mm | 1008 Taper Lock | 12.7 mm | €114.57 | |
![]() |
08BTB21H | 85.21 mm | 92.58 mm | 21 | 25.4 mm | 1610 Taper | 12.7 mm | €154.98 | |
![]() |
08BTB22H | 89.24 mm | 96.6 mm | 22 | 25.4 mm | 1610 Taper | 12.7 mm | €167.68 |
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MARTIN SPROCKET 08BTB57 Roller Chain Sprocket, 57 Teeth, 230.540 mm Pitch Dia., 237.910 mm O.D., Steel
€284.53 /unit






