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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 1/2" to 2 5/8" |
| Bore Type | Bushed |
| Bushing Part Number | SK |
| Bushing Size | SK |
| Bushing Type | QD SK |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Chain Size | #40 |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | A |
| Hub Dia. | 3 7/8" |
| Hub Outside Dia. | 4" |
| Individually Packaged | No |
| Length Through Bore | 1 1/4" |
| Length Thru Bore | 1.4025" |
| Material | Steel |
| Max. Bore Size | 2 5/8" |
| Min. Bore Size | 1/2" |
| No. Of Chain Rows | 3 |
| No. Of Teeth | 42 |
| Outside Dia. | 6.972" |
| Pitch | 1/2" |
| Pitch Dia. | 6.6907" , 6.691" |
| Product Datasheet | martin-sprocket-100a10.pdf |
| Single Strand Tooth Thickness | 0.275" |
| Storage Dimension Height | 1 1/4" |
| Storage Dimension Length | 6.972" |
| Storage Dimension Width | 6.972" |
| Type | Type B Triple Strand Solid Bushed |
Shipping Info:
| Ship weight (kg) | 4.41 |
| Ship height (cm) | 3.18 |
| Ship length (cm) | 17.7 |
| Ship width (cm) | 17.7 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Length Through Bore | Storage Dimension Length | Storage Dimension Width | Hub Outside Dia. | Max. Bore Size | Bushing Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
E40SK60 | 9.554" | 60 | 1 1/4" | 9.841" | 9.841" | 4" | 2 5/8" | SK | €385.66 | |
![]() |
E40SF68 | 10.8264" | 68 | 1 1/4" | 11.115" | 11.115" | 4 3/4" | 2 15/16" | SF | €319.86 | |
![]() |
E40SF102 | 16.2364" | 102 | 1 1/4" | 16.529" | 16.529" | 4 3/4" | 2 15/16" | SF | €745.20 | |
![]() |
E40SK52 | 8.281" | 52 | 1 1/4" | 8.566" | 8.566" | 4" | 2 5/8" | SK | €344.36 | |
![]() |
E40SF76 | 12.0992" | 76 | 1 1/4" | 12.389" | 12.389" | 4 3/4" | 2 15/16" | SF | €485.19 | |
![]() |
E40SK36 | 5.737" | 36 | 1 1/4" | 6.015" | 6.015" | 4" | 2 5/8" | SK | €330.58 | |
![]() |
E40SK48 | 7.645" | 48 | 1 1/4" | 7.929" | 7.929" | 4" | 2 5/8" | SK | €324.23 |
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MARTIN SPROCKET E40SK42 Sprocket, QD, 40 Chain, 42 Teeth, 6.691 Inch Pitch Dia., 6.972 Inch O.D., Steel
€351.05 /unit






