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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 | B |
| Hub Dia. | 4" |
| Hub Outside Dia. | 4" |
| Individually Packaged | No |
| Length Through Bore | 1 1/4" |
| Length Thru Bore | 1 1/4" |
| Material | Steel |
| Max. Bore Size | 2 5/8" |
| Min. Bore Size | 1/2" |
| No. Of Chain Rows | 2 |
| No. Of Teeth | 48 |
| Outside Dia. | 7.929" |
| Pitch | 1/2" |
| Pitch Dia. | 7.6449" , 7.645" |
| Product Datasheet | martin-sprocket-100a10.pdf |
| Single Strand Tooth Thickness | 0.275" |
| Storage Dimension Height | 1 1/4" |
| Storage Dimension Length | 7.929" |
| Storage Dimension Width | 7.929" |
| Type | Type C Double Strand Solid Bushed |
Shipping Info:
| Ship weight (kg) | 4.15 |
| Ship height (cm) | 3.18 |
| Ship length (cm) | 20.14 |
| Ship width (cm) | 20.14 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Hub Dia. | Chain Size | Storage Dimension Length | Storage Dimension Width | Hub Outside Dia. | Max. Bore Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
D40SK36 | 5.737" | 36 | 4" | 40-2 | 6.015" | 6.015" | 4" | 2 5/8" | €225.99 | |
![]() |
D40SK40 | 6.373" | 40 | 4" | 40-2 | 6.653" | 6.653" | 4" | 2 5/8" | €226.71 | |
![]() |
D40SK42 | 6.691" | 42 | 4" | #40 | 6.972" | 6.972" | 4" | 2 5/8" | €227.70 | |
![]() |
D40SK45 | 7.168" | 45 | 4" | #40 | 7.45" | 7.45" | 4" | 2 5/8" | €300.37 | |
![]() |
D40SK52 | 8.281" | 52 | 4" | #40 | 8.566" | 8.566" | 4" | 2 5/8" | €322.84 | |
![]() |
D40SK54 | 8.599" | 54 | 4" | #40 | 8.885" | 8.885" | 4" | 2 5/8" | €286.57 | |
![]() |
D40SK60 | 9.554" | 60 | 4" | #40 | 9.841" | 9.841" | 4" | 2 5/8" | €314.19 |
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MARTIN SPROCKET D40SK48 Roller Chain Sprocket, 40 Chain, Bushed QD, 48 Teeth, 7.645 Inch Pitch Dia., Steel
€312.12 /unit






