FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 5/8" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Chain Size | 40-2 |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 5/8" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Dia. | 3 1/4" |
| Hub Outside Dia. | 3 1/4" |
| Individually Packaged | No |
| Length Through Bore | 1 5/8" |
| Length Thru Bore | 1 5/8" |
| Material | Steel |
| Max. Bore Size | 2 1/4" |
| Min. Bore Size | 5/8" |
| No. Of Chain Rows | 2 |
| No. Of Teeth | 25 |
| Outside Dia. | 4.258" |
| Pitch | 1/2" |
| Pitch Dia. | 3.989" , 3.9894" |
| Single Strand Tooth Thickness | 0.275" |
| Storage Dimension Height | 1 5/8" |
| Storage Dimension Length | 4.258" |
| Storage Dimension Width | 4.258" |
| Type | Double Strand Solid Stock Bore Type B |
Shipping Info:
| Ship weight (kg) | 1.92 |
| Ship height (cm) | 4.14 |
| Ship length (cm) | 10.82 |
| Ship width (cm) | 10.82 |
| 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 | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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D40B11H | 1/2" to 3/4" | 1.775" | 2.003" | 1.438" | 1 1/2" | 40 | 1/2" | Finished Bore | €100.07 | |
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D40B12H | 1/2" | 1.932" | 2.166" | 1.563" | 1 1/2" | 40 | 1/2" | Finished Bore | €100.65 | |
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D40B13H | 1/2" | 2.089" | 2.329" | 1 1/2" | 1 1/2" | 40 | 1/2" | Finished Bore | €101.80 | |
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D40B14H | 1/2" | 2.247" | 2.491" | 1.688" | 1 1/2" | 40 | 1/2" | Finished Bore | €103.87 | |
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D40B15H | 1/2" | 2.405" | 2.652" | 1.813" | 1 1/2" | 40 | 1/2" | Finished Bore | €103.87 | |
![]() |
D40B16H | 5/8" | 2.563" | 2.814" | 1.969" | 1 1/2" | 40 | 1/2" | Finished Bore | €104.45 | |
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D40B17H | 5/8" | 2.721" | 2.975" | 2 1/8" | 1 1/2" | 40 | 1/2" | Finished Bore | €107.63 |
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Contact us
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MARTIN SPROCKET D40B25H Sprocket, Stock Bore, 40 Chain, 25 Teeth, 3.989 Inch Pitch Dia., 4.258 Inch O.D., Steel
€140.30 /unit







