MARTIN SPROCKET E40B42 Sprocket, Stock Bore, 40 Chain, 42 Teeth, 6.691 Inch Pitch Dia., 6.972 Inch O.D., Steel
6.972"
Get it by Thursday, Dec 18
€248.00 /unit
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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 15/16" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Diameter | 3 3/4" |
| Hub Outside Dia. | 3 3/4" |
| Individually Packaged | No |
| Length Through Bore | 2 3/8" |
| Length Thru Bore | 2 3/8" |
| Material | Steel |
| Max. Bore Size | 2 1/2" |
| Min. Bore Size | 15/16" |
| No. Of Teeth | 42 |
| Number Of Chain Rows | 3 |
| Number Of Teeth | 42 |
| Outside Dia. | 6.972" |
| Pitch | 1/2" |
| Pitch Dia. | 6.6907" |
| Pitch Diameter | 6.691" |
| Product Datasheet | martin-sprocket-100a10.pdf |
| Single Strand Tooth Thickness | 0.275" |
| Storage Dimension Height | 2 3/8" |
| Storage Dimension Length | 6.972" |
| Storage Dimension Width | 6.972" |
Shipping Info:
| Ship weight (kg) | 6.91 |
| Ship height (cm) | 6.05 |
| Ship length (cm) | 17.7 |
| Ship width (cm) | 17.7 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Number Of Teeth | Pitch Dia. | Outside Dia. | Length Through Bore | For Chain Number | For Chain Pitch | Bore Type | Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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E40B11H | 11 | 1.7747" | 2.003" | 2 1/8" | 40 | 1/2" | Finished Bore | 1/2" | €132.83 | |
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E40B12H | 12 | 1.9319" | 2.166" | 2 1/8" | 40 | 1/2" | Finished Bore | 1/2" | €134.62 | |
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E40B13H | 13 | 2.0893" | 2.329" | 2 1/8" | 40 | 1/2" | Finished Bore | 1/2" | €135.15 | |
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E40B14H | 14 | 2.247" | 2.491" | 2 1/8" | 40 | 1/2" | Finished Bore | 1/2" | €135.15 | |
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E40B15H | 15 | 2.4049" | 2.652" | 2 1/8" | 40 | 1/2" | Finished Bore | 1/2" | €136.17 | |
![]() |
E40B16H | 16 | 2.5629" | 2.814" | 2 1/8" | 40 | 1/2" | Finished Bore | 1/2" | €139.77 | |
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E40B17H | 17 | 2.7211" | 2.975" | 2 1/8" | 40 | 1/2" | Finished Bore | 1/2" | €146.45 |
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MARTIN SPROCKET E40B42 Sprocket, Stock Bore, 40 Chain, 42 Teeth, 6.691 Inch Pitch Dia., 6.972 Inch O.D., Steel
€248.00 /unit





