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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Type | Bushed |
| Bushing Part Number | Q1 |
| Bushing Size | Q1 |
| Chain Number | 120 |
| Chain Pitch | 1 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 120 |
| For Chain Pitch | 1 1/2" |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Diameter | 4 1/8" |
| Hub Outside Dia. | 4 1/8" |
| Individually Packaged | No |
| Keyway Size | 1/2" |
| Keyway Width | 1/2" |
| Length Through Bore | 2 1/2" |
| Length Thru Bore | 1 3/4" |
| Material | Steel |
| Max. Bore Size | 2 11/16" |
| Min. Bore Size | 3/4" |
| No. Of Teeth | 13 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 13 |
| Outside Dia. | 6.986" |
| Pitch | 1 1/2" |
| Pitch Dia. | 6.2679" |
| Pitch Diameter | 6.268" |
| Single Strand Tooth Thickness | 0.924" |
| Storage Dimension Height | 1 3/4" |
| Storage Dimension Length | 6.986" |
| Storage Dimension Width | 6.986" |
Shipping Info:
| Ship weight (kg) | 3.27 |
| Ship height (cm) | 6.35 |
| Ship length (cm) | 17.75 |
| Ship width (cm) | 17.75 |
| Country of Origin | US |
Product Variants
| Product | Model | Number Of Teeth | Outside Dia. | Pitch Dia. | Bore Type | Length Through Bore | Bushing Type | For Chain Pitch | For Chain Number | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
120R32 | 32 | 16.13" | 15.3034" | Bushed | 2" | MST R1 | 1 1/2" | 120 | €1,096.59 | |
![]() |
120R35 | 35 | 17.566" | 16.7337" | Bushed | 4" | MST R2 | 1 1/2" | 120 | €1,122.66 | |
![]() |
120R36 | 36 | 18.045" | 17.211" | Bushed | 4" | Type R2 Split Taper | 1 1/2" | 120 | €1,080.64 | |
![]() |
120R40 | 40 | 19.959" | 19.1182" | Bushed | 4" | MST R2 | 1 1/2" | 120 | €1,139.43 | |
![]() |
120S40 | 40 | 19.959" | 19.118" | Bushed | 4 7/8" | Type S1 Split Taper | 1 1/2" | - | €1,139.43 | |
![]() |
120S42 | 42 | 20.916" | 20.0722" | Bushed Bore | 3 5/16" | MST S1 | 1 1/2" | 120 | €1,092.09 | |
![]() |
120R45 | 45 | 22.351" | 21.5034" | Bushed | 4" | MST R2 | 1 1/2" | 120 | €1,308.19 |
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Contact us
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MARTIN SPROCKET 120Q13H Sprocket, 120 Chain, 13 Teeth, 6.268 Inch Pitch Dia., 6.986 Inch O.D., Steel
€510.99 /unit




