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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 1 3/8" |
| Bore Size | 1 3/8" |
| Bore Type | Finished Bore |
| Chain Number | 60 |
| Chain Pitch | 3/4" |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 3/8" |
| For Chain Number | 60 |
| For Chain Pitch | 3/4" |
| Hub Configuration | B |
| Hub Diameter | 4" |
| Hub Outside Dia. | 4" |
| Individually Packaged | Yes |
| Keyway Size | 5/16" x 5/32" |
| Length Through Bore | 1 1/4" |
| Length Thru Bore | 1 1/4" |
| Material | Steel |
| No. Of Teeth | 21 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 21 |
| Outside Dia. | 5.426" |
| Pitch | 3/4" |
| Pitch Dia. | 5.0321" |
| Pitch Diameter | 5.032" |
| Set Screw Location | (1) Over Keyway And (1) At 90° |
| Set Screw Size | 5/16"-18 |
| Set Screw Thread Type | Coarse |
| Single Strand Tooth Thickness | 0.459" |
| Storage Dimension Height | 1 14/25" |
| Storage Dimension Length | 4 3/4" |
| Storage Dimension Width | 4 3/4" |
Shipping Info:
| Ship weight (kg) | 2.12 |
| Ship height (cm) | 3.96 |
| Ship length (cm) | 13.79 |
| Ship width (cm) | 13.79 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Number Of Teeth | Outside Dia. | Length Through Bore | Set Screw Size | Bore Size | For Chain Number | For Chain Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
60BS9 3/4 | 2.1929" | 9 | 2.511" | 1 1/4" | 1/4"-20 | 3/4" | 60 | 3/4" | €43.29 | |
![]() |
60BS9 1 | 2.1929" | 9 | 2.511" | 1 1/4" | 5/16"-18 | 1" | 60 | 3/4" | €43.29 | |
![]() |
60BS10 3/4 | 2.4271" | 10 | 2.758" | 1 1/4" | 1/4"-20 | 3/4" | 60 | 3/4" | €45.21 | |
![]() |
60BS10 7/8 | 2.4271" | 10 | 2.758" | 1 1/4" | 1/4"-20 | 7/8" | 60 | 3/4" | €45.21 | |
![]() |
60BS10 1 | 2.4271" | 10 | 2.758" | 1 1/4" | 5/16"-18 | 1" | 60 | 3/4" | €45.21 | |
![]() |
60BS10 1 1/8 | 2.4271" | 10 | 2.758" | 1 1/4" | 5/16"-18 | - | 60 | 3/4" | €45.21 | |
![]() |
60BS10 1 3/16 | 2.4271" | 10 | 2.758" | 1 1/4" | 5/16"-18 | - | 60 | 3/4" | €45.21 |
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MARTIN SPROCKET 60BS21 1 3/8 Roller Chain Sprocket, Bore To Size, 1.375 Inch Bore, 5.426 Inch Outside Dia. Steel
€119.42 /unit







