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Product Specifications:
| Item | Roller Chain Sprocket |
| Material | Steel |
| No. Of Teeth | 21 |
| Number Of Teeth | 21 |
| Outside Diameter | 69.46 mm |
| Pitch | 9.53 mm |
| Pitch Dia. | 63.91 mm |
| Pitch Diameter | 63.91 mm |
Shipping Info:
| Ship weight (kg) | 0.39 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 6.93 |
| Ship width (cm) | 6.93 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Number Of Teeth | Length Through Bore | Bushing Type | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|
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06BTB18H | 54.85 mm | 60.41 mm | 18 | 22.23 mm | 1008 Taper | 9.53 mm | €122.83 | |
![]() |
06BTB19H | 57.87 mm | 63.43 mm | 19 | 22.23 mm | 1008 Taper | 9.53 mm | €125.55 | |
![]() |
06BTB20H | 60.89 mm | 66.44 mm | - | 22.23 mm | 1008 Taper | 9.53 mm | €123.33 | |
![]() |
06BTB23H | 69.95 mm | 75.51 mm | 23 | 25.4 mm | 1210 Taper | 9.53 mm | €133.67 | |
![]() |
06BTB25H | 76 mm | 81.55 mm | - | 25.4 mm | 1210 Taper | 9.53 mm | €139.03 | |
![]() |
06BTB26H | 79.02 mm | 84.58 mm | - | 25.4 mm | 1610 Taper | 9.53 mm | €142.26 | |
![]() |
06BTB28H | 85.07 mm | 90.63 mm | 28 | 25.4 mm | 1610 Taper Lock | 9.53 mm | €145.50 |
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MARTIN SPROCKET 06BTB21H Roller Chain Sprocket, 21 Teeth, 63.910 mm Pitch Dia., 69.460 mm O.D., Steel
€126.34 /unit






