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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 7/8" |
| Bore Type | Fixed |
| Chain Number | 40 |
| Finish | Black Oxide |
| For Chain Number | 40.0 |
| For Chain Pitch | 1/2" |
| For Number Of Strands | 1 |
| Hub Dia. | 2 3/4" |
| Hub Diameter | 2 3/4" |
| Hub Projection | 0.716" |
| Hub Type | One Side |
| Includes | Set Screws |
| Industry Chain Size | 40 |
| Item - Roller Chain Sprockets | Roller Chain Sprocket |
| Keyway | Yes |
| Keyway Width | 3/16" |
| Length Through Bore | 1" |
| Material | Steel |
| Maximum Bore Dia. | 7/8" |
| Number Of Set Screws | 2 |
| Number Of Teeth | 21 |
| Outside Dia. | 3.62" |
| Pitch Dia. | 3.355" |
| Set Screw Location | One Setscrew Over The Keyway And A Second Setscrew at 90 Degrees |
| Set Screw Size | 1/4" |
| Teeth Heat Treatment | Hardened Teeth |
| Tooth Width | 0.284" |
| Width Across Tooth Sets | Not Applicable |
Shipping Info:
| Ship weight (kg) | 0.69 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 9.19 |
| Ship width (cm) | 9.19 |
| Country of Origin | CN |
Product Variants
| Product | Model | Number Of Teeth | Outside Dia. | Bore Dia. | For Chain Number | For Chain Pitch | Pitch Dia. | Maximum Bore Dia. | Keyway | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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D80BS12H X 1 1/2 | 12 | 4.33" | 1 1/2" | 80-2 | 1" | 3.864" | 1 1/2" | Yes | €217.10 | |
![]() |
D60BS13H X 1 1/2 | 13 | 3.49" | 1 1/2" | 60-2 | 3/4" | 3.134" | 1 1/2" | Yes | €124.22 | |
![]() |
D80BS13H X 1 1/2 | 13 | 4.66" | 1 1/2" | 80-2 | 1" | 4.179" | 1 1/2" | Yes | €221.77 | |
![]() |
D60BS14H X 1 1/2 | 14 | 3.74" | 1 1/2" | - | 3/4" | 3.371" | 1 1/2" | Yes | €138.77 | |
![]() |
60BS16H X 1 1/2 | 16 | 4.22" | 1 1/2" | 60.0 | 3/4" | 3.845" | 1 1/2" | Yes | €77.95 | |
![]() |
50BS17H X 1 1/2 | 17 | 3 18/25" | 1 1/2" | 50.0 | 5/8" | 3.401" | 1 1/2" | Yes | €47.33 | |
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80BS17H X 1 1/2 | 17 | 5.95" | 1 1/2" | 80.0 | 1" | - | 1 1/2" | Yes | €185.89 |
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Contact us
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TRITAN 40BS21H X 7/8 Roller Chain Sprocket, 7/8 Inch Bore Dia, 21 Teeth, Steel
€50.56 /unit




