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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Type | Bushed |
| Bushing Part Number | Q1 |
| Bushing Size | Q1 |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Diameter | 4 1/4" |
| Hub Outside Dia. | 4 1/4" |
| Individually Packaged | No |
| Keyway Size | 1/2" |
| Keyway Width | 1/2" |
| Length Through Bore | 1 3/4" |
| Length Thru Bore | 1 3/4" |
| Material | Steel |
| Max. Bore Size | 2 11/16" |
| Min. Bore Size | 3/4" |
| No. Of Teeth | 42 |
| Number Of Chain Rows | 2 |
| Number Of Teeth | 42 |
| Outside Dia. | 6.972" |
| Pitch | 1/2" |
| Pitch Dia. | 6.6907" |
| Single Strand Tooth Thickness | 0.275" |
| Storage Dimension Height | 1 3/4" |
| Storage Dimension Length | 6.972" |
| Storage Dimension Width | 6.972" |
Shipping Info:
| Ship weight (kg) | 3.67 |
| Ship height (cm) | 4.45 |
| Ship length (cm) | 17.7 |
| Ship width (cm) | 17.7 |
| Country of Origin | US |
Product Variants
| Product | Model | Number Of Teeth | Pitch Dia. | Outside Dia. | Length Through Bore | Bushing Type | For Chain Number | For Chain Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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D40Q72 | 72 | 11.4628" | 11.752" | 1 3/4" | MST Q1 | 40 | 1/2" | Bushed | €487.49 | |
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D40Q84 | 84 | 13.3721" | 13.663" | 1 3/4" | MST Q1 | 40 | 1/2" | Bushed | €572.65 | |
![]() |
D40Q96 | 96 | 15.2816" | 15.573" | 1 3/4" | MST Q1 | 40 | 1/2" | Bushed | €710.93 | |
![]() |
D40Q112 | 112 | 17.8277" | 18.121" | 1 3/4" | MST Q1 | 40 | 1/2" | Bushed | €1,003.13 | |
![]() |
D40Q68 | 68 | 10.8264" | 11.115" | 1 3/4" | MST Q1 | 40 | 1/2" | Bushed | €427.99 | |
![]() |
D40H15H | 15 | 2.4049" | 2.652" | 1 1/2" | MST H | 40 | 1/2" | Bushed | €175.66 | |
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D40H16H | 16 | 2.5629" | 2.814" | 1 1/4" | Type H Split Taper | 40 | 1/2" | Bushed | €177.08 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET D40Q42H Sprocket, MST, 40 Chain, 42 Teeth, 6.691 Inch Pitch Dia., 6.972 Inch O.D., Steel
€294.89 /unit





