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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 63.5 mm |
| Bushing Type | 2517 Taper |
| Chain Size | #20B-1 |
| Hub Dia. | 107 mm |
| Length Through Bore | 44.45 mm |
| Material | Steel |
| No. Of Teeth | 20 |
| Outside Dia. | 223.6 mm |
| Pitch | 31.75 mm |
| Pitch Dia. | 202.96 mm |
| Type | Type B Single Strand Stock Bore Welded |
Shipping Info:
| Ship weight (kg) | 1.89 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 22.35 |
| Ship width (cm) | 22.35 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Bore Dia. | Hub Dia. | Length Through Bore | Bushing Type | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
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20BTB12H | 122.67 mm | 143.31 mm | 41.28 mm | 71 mm | 38.1 mm | 1615 Taper | 31.75 mm | €341.08 | |
![]() |
20BTB15H | 152.71 mm | 173.35 mm | 63.5 mm | 108 mm | 44.45 mm | 2517 Taper | 31.75 mm | €518.81 | |
![]() |
20BTB16H | 162.75 mm | 183.38 mm | 63.5 mm | 108 mm | 44.45 mm | 2517 Taper | 31.75 mm | €549.67 | |
![]() |
20BTB21H | 213.03 mm | 233.66 mm | 63.5 mm | 107 mm | 44.45 mm | 2517 Taper | 31.75 mm | €678.32 | |
![]() |
20BTB36 | 364.29 mm | 384.93 mm | 76.2 mm | 133 mm | 50.8 mm | 3020 Taper | 31.75 mm | €851.74 | |
![]() |
20BTB40 | 404.67 mm | 425.31 mm | 76.2 mm | 133 mm | 50.8 mm | 3020 Taper | 31.75 mm | €980.76 | |
![]() |
20BTB13H | 132.67 mm | 153.31 mm | 50.8 mm | 90 mm | 31.75 mm | 2012 Taper | 31.75 mm | €374.65 |
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MARTIN SPROCKET 20BTB20H Sprocket, 20B-1 Chain, 20 Teeth, 202.960 mm Pitch Dia., 223.600 mm O.D., Steel
€659.61 /unit




