FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 1 3/8" |
| Bore Size | 1 3/8" |
| Bore Type | Finished Bore |
| Chain Number | 50 |
| Chain Pitch | 5/8" |
| Chain Size | #50 |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 3/8" |
| For Chain Number | 50 |
| For Chain Pitch | 5/8" |
| Hub Configuration | B |
| Hub Dia. | 3" |
| Hub Outside Dia. | 3" |
| Individually Packaged | Yes |
| Key Way Size | 5/16" x 5/32" |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 20 |
| Outside Dia. | 4.321" |
| Pitch | 5/8" |
| Pitch Dia. | 3.995" , 3.9953" |
| Screw Size | 5/16"-18 x 5/16" |
| 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 | 0.343" |
| Storage Dimension Height | 1.06" |
| Storage Dimension Length | 4 5/8" |
| Storage Dimension Width | 4 5/8" |
| Type | Bored to Size Type BS |
Shipping Info:
| Ship weight (kg) | 0.77 |
| Ship height (cm) | 2.69 |
| Ship length (cm) | 10.97 |
| Ship width (cm) | 10.97 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Length Through Bore | Set Screw Size | Key Way Size | Construction Type | Hub Dia. | Bore Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
50BS9 5/8 | 1.8274" | 9 | 1" | 1/4"-20 | 3/16" x 3/32" | Solid With Recess Groove | 1 3/8" | 5/8" | €40.29 | |
![]() |
50BS9 3/4 | 1.8274" | 9 | 1" | 1/4"-20 | 3/16" x 3/32" | Solid With Recess Groove | 1 3/8" | 3/4" | €40.29 | |
![]() |
50BS10 5/8 | 2.023" | 10 | 1" | 1/4"-20 | 3/16" x 3/32" | Solid With Recess | 1.563" | 5/8" | €43.29 | |
![]() |
50BS10 3/4 | 2.023" | 10 | 1" | 1/4"-20 | 3/16" x 3/32" | Solid With Recess | 1.563" | 3/4" | €43.29 | |
![]() |
50BS10 7/8 | 2.023" | 10 | 1" | 1/4"-20 | 3/16" x 3/32" | Solid With Recess | 1.563" | 7/8" | €43.29 | |
![]() |
50BS10 1 | 2.023" | 10 | 1" | 5/16"-18 | 1/4" x 1/8" | Solid With Recess | 1.563" | 1" | €43.29 | |
![]() |
50BS11 5/8 | 2.218" | 11 | 1" | 1/4"-20 | 3/16" x 3/32" | Solid With Recess Groove | 1 3/4" | 5/8" | €45.21 |
Explore Products
- BRECO d440 Socket, Interchange, Industrial, FPT, 3/8 Inch
- MORSE CUTTING TOOLS 54834 MT1354834 Round Carbide Drill, 3.5 mm Dia., 3.5 mm Shank, 24 mm Flute Length
- MILWAUKEE 48-73-1128 Hard Hat, Front Brim Head Protection, ANSI Classification Type 1, Class E, Red
- ONSRUD AMC716052 Square End Mill, Center Cutting, 3 Flutes, 5/8 Inch Milling Dia, 3/4 Inch Length Of Cut
- VULCAN HART 00-417256-00002 Aeration Top Grate, Open Buner, Black Porcelain, 12 x 12 x 3.25 Inch Size
- STARRETT-UK DM3905 762XFL Electronic Micrometer
- BOSTON GEAR SCC 1-1/4 X 1 Steel Setscrew Coupling
- PARKER 1.50BC4MAU18A03.50 Pneumatic Cylinder
Explore More
- DORAN
- KEYSHAFT
- RICHARDS-WILCOX
- SIEVERT
- COUNTERACT
- Rechargeable Flashlight Battery Packs
- Wired Intercom Systems
- Chart Recorder Pens
- Coolant Filters And Cartridges
- Hinged Safety Interlock Switches
- SHARPE VALVES Forged Carbon Steel Gate Valve, Socket Weld
- CONDOR Back Supports With Lumbar Pads, Nylon
- MEMPHIS GLOVE Ninja BNF Work Gloves, 15 Gauge, Fully Coated
- CONDOR Knit Gloves, Full Finger, Uncoated, Cotton, 7 Gauge, White
- GLOBE SCIENTIFIC Labeling Tapes, 3/4 Inch x 60 Yard per Roll
- APPROVED VENDOR Nickel Chromium Tubing
- SPEARS VALVES PVC Basket Strainers, Socket Ends, EPDM
- GRAINGER Return Bends
- SPEC Metric Compression Springs, Music Wire, 23.2 mm Outside Dia.
- DESTACO 860 Series Pneumatic Power Clamps
Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET 50BS20 1 3/8 Roller Chain Sprocket, Bore To Size, 1.375 Inch Bore, 4.321 Inch Outside Dia. Steel
€86.05 /unit







