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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 14 mm |
| Chain Size | #12B-1 |
| Length Through Bore | 35 mm |
| Material | Steel |
| No. Of Teeth | 20 |
| Outside Dia. | 133.524 mm |
| Pitch | 19.05 mm |
| Pitch Dia. | 121.776 mm |
| Type | Type A Single Strand Solid Stock Bore |
Shipping Info:
| Ship weight (kg) | 1.09 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 13.36 |
| Ship width (cm) | 13.36 |
| Country of Origin | US |
Product Variants
| Product | Model | Bore Dia. | Pitch Dia. | Outside Dia. | Length Through Bore | Hub Dia. | Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
![]() |
12A21 | 16 mm | 127.816 mm | 139.564 mm | 40 mm | - | 19.05 mm | - | €113.93 | |
![]() |
12A22 | 16 mm | 133.858 mm | 145.606 mm | 40 mm | - | 19.05 mm | - | €110.22 | |
![]() |
12A23 | 16 mm | 139.902 mm | 151.65 mm | 11.1 mm | 100 mm | 19.05 mm | - | €113.67 | |
![]() |
12A24 | 19 mm | 145.948 mm | 157.695 mm | 40 mm | - | 19.05 mm | - | €117.07 | |
![]() |
12A25 | 19 mm | 151.995 mm | 163.742 mm | 40 mm | - | 19.05 mm | - | €119.84 | |
![]() |
12A26 | 19 mm | 158.043 mm | 169.791 mm | 40 mm | - | 19.05 mm | - | €123.26 | |
![]() |
12A27 | 19 mm | 164.093 mm | 175.84 mm | 40 mm | - | 19.05 mm | - | €127.59 |
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MARTIN SPROCKET 12A20 Sprocket, 12B-1 Chain, 20 Teeth, 121.776 mm Pitch Dia., 133.524 mm O.D., Steel
€111.00 /unit



