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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 5/8" to 2 1/4" |
| Bore Type | Finished Bore |
| Chain Number | 2042 |
| Chain Pitch | 1" |
| Chain Size | #2042 |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 5/8" |
| For Chain Number | 2042 |
| For Chain Pitch | 1" |
| Hub Configuration | B |
| Hub Dia. | 3 1/16" |
| Hub Outside Dia. | 3 1/16" |
| Individually Packaged | Yes |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| Max. Bore Size | 2 1/4" |
| Min. Bore Size | 5/8" |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 12 |
| Outside Dia. | 4.33" |
| Pitch | 1" |
| Pitch Dia. | 3.8637" , 3.864" |
| Single Strand Tooth Thickness | 0.284" |
| Storage Dimension Height | 1 1/16" |
| Storage Dimension Length | 4 5/8" |
| Storage Dimension Width | 4 5/8" |
| Type | Type B Single Strand Double Pitch Reboreable |
Shipping Info:
| Ship weight (kg) | 1.04 |
| Ship height (cm) | 2.7 |
| Ship length (cm) | 11 |
| Ship width (cm) | 11 |
| Country of Origin | US |
Product Variants
| Product | Model | Bore Dia. | Pitch Dia. | Outside Dia. | Hub Dia. | Length Through Bore | For Chain Number | For Chain Pitch | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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2042B8 | 5/8" to 1 9/32" | 2.6131" | 3.01" | 1 7/8" | 7/8" | 2042 | 1" | 1" | €60.21 | |
![]() |
2042B9 | 5/8" to 1 15/32" | 2.9238" | 3.35" | 2.2188" | 7/8" | 2042 | 1" | 1" | €76.20 | |
![]() |
2042B10 | 5/8" to 1 3/4" | 3.236" | 3 17/25" | 2.5469" | 1" | 2042 | 1" | 1" | €92.52 | |
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2042B11 | 5/8" to 1 7/8" | 3.5495" | 4.01" | 2 5/8" | 1" | 2042 | 1" | 1" | €108.87 | |
![]() |
2042B14 | 5/8" to 2 1/4" | 4.494" | 4.98" | 3 1/4" | 1" | 2042 | 1" | 1" | €130.33 | |
![]() |
2042B15 | 5/8" to 2 1/4" | 4.81" | 5.3" | 3 1/4" | 1" | 2042 | 1" | 1" | €137.68 | |
![]() |
2042B16 | 5/8" to 2 1/4" | 5.126" | 5.63" | 3 1/4" | 1" | 2042 | 1" | 1" | €139.84 |
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MARTIN SPROCKET 2042B12 Sprocket, 2042 Chain, 12 Teeth, 3.864 Inch Pitch Dia., 4.330 Inch O.D., Steel
€117.24 /unit


