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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 24 mm |
| Length Through Bore | 50 mm |
| Material | Steel |
| No. Of Teeth | 21 |
| Number Of Teeth | 21 |
| Outside Dia. | 186.296 mm |
| Pitch | 25.4 mm |
| Pitch Dia. | 170.421 mm |
Shipping Info:
| Ship weight (kg) | 2.61 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 18.62 |
| Ship width (cm) | 18.62 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Number Of Teeth | Length Through Bore | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|
![]() |
16A11 | 90.156 mm | 106.031 mm | - | 40 mm | 25.4 mm | €101.72 | |
![]() |
16A12 | 98.138 mm | 114.013 mm | 12 | 40 mm | 25.4 mm | €105.39 | |
![]() |
16A13 | 106.136 mm | 122.011 mm | 13 | 40 mm | 25.4 mm | €113.93 | |
![]() |
16A14 | 114.147 mm | 130.022 mm | 14 | 40 mm | 25.4 mm | €109.32 | |
![]() |
16A15 | 122.167 mm | 138.042 mm | 15 | 40 mm | 25.4 mm | €113.67 | |
![]() |
16A17 | 138.232 mm | 154.107 mm | 17 | 45 mm | 25.4 mm | €127.59 | |
![]() |
16A18 | 146.273 mm | 162.148 mm | 18 | 45 mm | 25.4 mm | €126.75 |
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MARTIN SPROCKET 16A21 Sprocket, 16B-1 Chain, 21 Teeth, 170.421 mm Pitch Dia., 186.296 mm O.D., Steel
€148.72 /unit





