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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 25.4 mm |
| Bushing Type | 1008 Taper |
| Chain Size | #06B-2 |
| Hub Dia. | 52 mm |
| Length Through Bore | 22.23 mm |
| Material | High Carbon Steel |
| No. Of Teeth | 21 |
| Outside Dia. | 69.46 mm |
| Pitch | 9.53 mm |
| Pitch Dia. | 63.91 mm |
| Type | Type B Double Strand Solid Stock Bore |
Shipping Info:
| Ship weight (kg) | 2.84 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 6.93 |
| Ship width (cm) | 6.93 |
| Country of Origin | US |
Product Variants
| Product | Model | Bore Dia. | Pitch Dia. | Outside Dia. | Hub Dia. | Length Through Bore | Bushing Type | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
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D06BTB19 | 25.4 mm | 57.87 mm | 63.43 mm | 47 mm | 22.23 mm | 1008 Taper | 9.53 mm | €193.92 | |
![]() |
D06BTB24 | 31.75 mm | 72.97 mm | 78.53 mm | 62 mm | 25.4 mm | 1210 Taper | 9.53 mm | €222.13 | |
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D06BTB35 | 41.28 mm | 106.26 mm | 111.82 mm | 83 mm | 25.4 mm | 1610 Taper | 9.53 mm | €281.31 | |
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D06BTB40 | 41.28 mm | 121.4 mm | 126.96 mm | 83 mm | 25.4 mm | 1610 Taper | 9.53 mm | €302.20 | |
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D06BTB45 | 41.28 mm | 136.55 mm | 142.1 mm | 83 mm | 25.4 mm | 1610 Taper | 9.53 mm | €318.55 | |
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D06BTB48 | 41.28 mm | 145.64 mm | 151.19 mm | 83 mm | 25.4 mm | 1610 Taper | 9.53 mm | €337.47 | |
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D06BTB57 | 41.28 mm | 172.91 mm | 178.46 mm | 92 mm | 25.4 mm | 1610 Taper | 9.53 mm | €373.84 |
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MARTIN SPROCKET D06BTB21 Roller Chain Sprocket, 21 Teeth, 63.910 mm Pitch Dia., 69.460 mm O.D., Steel
€207.47 /unit







