FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 1 3/16" |
| Bore Size | 1 3/16" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 3/16" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Diameter | 2 5/8" |
| Hub Outside Dia. | 2 5/8" |
| Individually Packaged | Yes |
| Keyway Size | 1/4" x 1/8" |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 20 |
| Outside Dia. | 3.457" |
| Pitch | 1/2" |
| Pitch Dia. | 3.1962" |
| Pitch Diameter | 3.196" |
| 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 | 0.284" |
| Storage Dimension Height | 1.06" |
| Storage Dimension Length | 3 5/8" |
| Storage Dimension Width | 3 5/8" |
Shipping Info:
| Ship weight (kg) | 0.53 |
| Ship height (cm) | 2.69 |
| Ship length (cm) | 8.79 |
| Ship width (cm) | 8.79 |
| Country of Origin | US |
Product Variants
| Product | Model | Number Of Teeth | Pitch Dia. | Outside Dia. | Length Through Bore | Set Screw Size | Set Screw Location | Bore Size | For Chain Number | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
40BS9 1/2 | 9 | 1.4619" | 1.674" | 7/8" | #10-24 | (2) 90° Apart (No Keyway) | 1/2" | 40 | €29.33 | |
![]() |
40BS9 5/8 | 9 | 1.4619" | 1.674" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 5/8" | 40 | €29.33 | |
![]() |
40BS10 1/2 | 10 | 1.618" | 1.839" | 7/8" | #10-24 | (2) 90° Apart (No Keyway) | 1/2" | 40 | €30.42 | |
![]() |
40BS10 5/8 | 10 | 1.618" | 1.839" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 5/8" | 40 | €30.42 | |
![]() |
40BS10 3/4 | 10 | 1.618" | 1.839" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 3/4" | 40 | €30.42 | |
![]() |
40BS11 1/2 | 11 | 1.7747" | 2.003" | 7/8" | #10-24 | (2) 90° Apart (No Keyway) | 1/2" | 40 | €31.80 | |
![]() |
40BS11 5/8 | 11 | 1.7747" | 2.003" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 5/8" | 40 | €31.80 |
Explore Products
- VERMONT GAGE 111478850 Pin Gage, Class ZZ, NoGo, Steel, 0.7885 Inch Size
- SQUARE D QO816L100RB Load Center Lug 100A 120/240VAC 1-Phase
- TSUBAKI W35 Hub
- BUSSMANN 170M5691 Specialty Fuse, High Speed, 690VAC, 350A, Square Body Blade Fuse
- SLOAN 24531304 Flushometer And Closet
- FABORY M01200.120.0260 Hex Head Cap Screw, M12x1.75 Thread Size, Steel, 260 mm Lg., 7.5 mm Head Ht.
- EATON M22S-DDLM-WS-X1-X0 Double Pushbutton, 22.5 mm, Top Flush, Bottom Extended, Illuminated, Black Bezel, IP66
- KIPP K0270.2A31X40 Adjustable Handle 5/16-18 External Stainless Steel 1.57 Modern Design Ng
Explore More
- BAYCO PRODUCTS
- KEYSHAFT
- MILLER BY HONEYWELL
- SNYDER INDUSTRIES
- ALEMITE
- Faceshield Replacement Visors
- Chafers
- Master Sets
- Fan Guards
- Cable Tie Kits
- CONDOR Heat Resistant Gloves, Kevlar/Nomex
- CONDOR General Purpose Gloves, Gray/White, Smooth PU
- CONDOR Mechanics Gloves, Fingerless, Pigskin, Wrist Support, Gel Damping
- GLOBE SCIENTIFIC Universal Plug Caps
- GLOBE SCIENTIFIC Wash Bottles, Wide Mouth, LDPE, 250 ml Capacity
- NIBCO Coupling, Rolled Tube Stop
- SIEMENS Circuit Breaker Bell Alarm
- SPEARS VALVES CPVC True Lug Butterfly Valves, SS Lug, EPDM
- ARO MaxAir Series Foot Pedal Valves
- 3M Scotchlok Vinyl Insulated Brazed Seam Locking Forks
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 40BS20 1 3/16 Roller Chain Sprocket, Bore To Size, 1.188 Inch Bore, 3.457 Inch Outside Dia. Steel
€62.22 /unit







