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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 1/2" to 1 3/4" |
| Bore Type | Bushed |
| Bushing Part Number | P1 |
| Bushing Size | P1 |
| Bushing Type | MST P1 |
| Chain Number | 50 |
| Chain Pitch | 5/8" |
| Chain Size | #50 |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 50 |
| For Chain Pitch | 5/8" |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Dia. | 3" |
| Hub Outside Dia. | 3" |
| Individually Packaged | No |
| Key Way Size | 3/8" |
| Keyway Width | 3/8" |
| Length Through Bore | 1 5/16" , 1.312" |
| Material | Steel |
| Max. Bore Size | 1 3/4" |
| Min. Bore Size | 1/2" |
| No. Of Chain Rows | 2 |
| No. Of Teeth | 21 |
| Outside Dia. | 4.522" |
| Pitch | 5/8" |
| Pitch Dia. | 4.1934" |
| Single Strand Tooth Thickness | 0.332" |
| Storage Dimension Height | 1.31" |
| Storage Dimension Length | 4.522" |
| Storage Dimension Width | 4.522" |
| Type | Type 12 Double Strand Solid Bushed |
Shipping Info:
| Ship weight (kg) | 1.27 |
| Ship height (cm) | 3.33 |
| Ship length (cm) | 11.48 |
| Ship width (cm) | 11.48 |
| Country of Origin | US |
Product Variants
| Product | Model | Bore Dia. | Pitch Dia. | Outside Dia. | Hub Dia. | Length Through Bore | Bushing Type | Keyway Width | For Chain Number | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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D50Q54 | 0.75" to 2.688" | 10.749" | 11.106" | 4.235" | 1 3/4" | MST Q1 | 1/2" | 50 | €581.10 | |
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D50Q60 | 0.75" to 2.688" | 11.9421" | 12.301" | 4.235" | 1 3/4" | MST Q1 | 1/2" | 50 | €672.28 | |
![]() |
D50Q72 | 0.75" to 2.688" | 14.3285" | 14.69" | 4.235" | 1 3/4" | MST Q1 | 1/2" | 50 | €780.08 | |
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D50Q32H | 0.75" to 2.688" | 6.3764" | 6.721" | 4.235" | 1 3/4" | MST Q1 | 1/2" | 50 | €376.50 | |
![]() |
D50Q36H | 0.75" to 2.688" | 7.1711" | 7.519" | 4.235" | 1 3/4" | MST Q1 | 1/2" | 50 | €418.13 | |
![]() |
D50Q40H | 0.75" to 2.688" | 7.966" | 8.316" | 4.235" | 2 1/2" | Type Q1 Split Taper | 1/2" | 50 | €376.20 | |
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D50H14H | 3/8" to 10 1/2" | 2.809" | 3.113" | 2 1/2" | 1 1/4" | Type H Split Taper | - | 50 | €221.44 |
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Contact us
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MARTIN SPROCKET D50P21H Roller Chain Sprocket, 50 Chain, Bushed MST, 21 Teeth, 4.193 Inch Pitch Dia., Steel
€261.68 /unit





