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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 31.75 mm |
| Hub Diameter | 63 mm |
| Material | High Carbon Steel |
| No. Of Teeth | 19 |
| Number Of Teeth | 19 |
| Outside Diameter | 84.53 mm |
| Pitch | 12.7 mm |
| Pitch Dia. | 77.16 mm |
| Pitch Diameter | 77.16 mm |
| Product Datasheet | martin-sprocket-06a15.pdf |
Shipping Info:
| Ship weight (kg) | 0.27 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 8.46 |
| Ship width (cm) | 8.46 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Number Of Teeth | Length Through Bore | Bushing Type | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|
![]() |
D08BTB18 | 73.14 mm | 80.5 mm | 18 | 25.4 mm | 1210 Taper | 12.7 mm | €241.51 | |
![]() |
D08BTB21 | 85.21 mm | 92.58 mm | 21 | 25.4 mm | 1610 Taper Lock | 12.7 mm | €266.46 | |
![]() |
D08BTB22 | 89.24 mm | 96.6 mm | 22 | 25.4 mm | 1610 Taper | 12.7 mm | €290.98 | |
![]() |
D08BTB23 | 93.27 mm | 100.63 mm | 23 | 25.4 mm | 1610 Taper | 12.7 mm | €314.85 | |
![]() |
D08BTB25 | 101.33 mm | 108.7 mm | - | 31.75 mm | 2012 Taper | 12.7 mm | €319.80 | |
![]() |
D08BTB30 | 121.5 mm | 128.86 mm | 30 | 31.75 mm | 2012 Taper | 12.7 mm | €334.47 | |
![]() |
D08BTB38 | 153.79 mm | 161.16 mm | 38 | 31.75 mm | 2012 Taper | 12.7 mm | €444.88 |
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MARTIN SPROCKET D08BTB19 Roller Chain Sprocket, 19 Teeth, 77.160 mm Pitch Dia., 84.530 mm O.D., Steel
€249.21 /unit







