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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 1.25" to 2.591" |
| Bore Type | Finished Bore |
| Chain Number | 120 |
| Chain Pitch | 1 1/2" |
| Chain Size | #120 |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 1/4" |
| For Chain Number | 120 |
| For Chain Pitch | 1 1/2" |
| Hub Configuration | A |
| Individually Packaged | No |
| Length Through Bore | 0.924" , 7/8" |
| Material | Steel |
| Min. Bore Size | 1 1/4" |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 9 |
| Outside Dia. | 5.021" |
| Pitch | 1 1/2" |
| Pitch Dia. | 4.3857" |
| Single Strand Tooth Thickness | 0.924" |
| Storage Dimension Height | 0.924" |
| Storage Dimension Length | 5.022" |
| Storage Dimension Width | 5.022" |
| Type | Type A Single Strand Solid Reboreable |
Shipping Info:
| Ship weight (kg) | 1.34 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 12.75 |
| Ship width (cm) | 12.75 |
| Country of Origin | US |
Product Variants
| Product | Model | Bore Dia. | Pitch Dia. | Outside Dia. | Length Through Bore | Hub Dia. | For Chain Number | For Chain Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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120A8 | 1.25" to 2.091" | 3.9197" | 4.521" | 0.924" | - | 120 | 1 1/2" | Finished Bore | €161.91 | |
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120A10 | 1.25" to 3.087" | 4.8541" | 5.517" | 0.924" | - | 120 | 1 1/2" | Finished Bore | €170.00 | |
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120A11 | 1 1/4" | 5.3242" | 6.009" | 0.924" | 3 9/16" | 120 | 1 1/2" | Finished Bore | €183.32 | |
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120A12 | 1 1/4" | 5.796" | 6.498" | 0.924" | 4 1/8" | 120 | 1 1/2" | Finished Bore | €205.26 | |
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120A13 | 1.25" to 4.556" | 6.2679" | 6.986" | 0.924" | - | 120 | 1 1/2" | Finished Bore | €217.14 | |
![]() |
120A14 | 1.25" to 5.042" | 6.7409" | 7.472" | 0.924" | - | 120 | 1 1/2" | Finished Bore | €229.93 | |
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120A15 | 1.25" to 5.527" | 7.2146" | 7.957" | 0.924" | - | 120 | 1 1/2" | Finished Bore | €246.00 |
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Contact us
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MARTIN SPROCKET 120A9 Roller Chain Sprocket, 120 Chain, Stock Bore, 9 Teeth, 4.386 Inch Pitch Dia., Steel
€162.95 /unit







