FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 1 1/2" |
| Bore Size | 1 1/2" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 1/2" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Diameter | 2 3/4" |
| Hub Outside Dia. | 2 3/4" |
| Individually Packaged | Yes |
| Keyway Size | 3/8" x 3/16" |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| No. Of Teeth | 21 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 21 |
| Outside Dia. | 3.617" |
| Pitch | 1/2" |
| Pitch Dia. | 3.3548" |
| Pitch Diameter | 3.355" |
| Set Screw Location | (1) Over Keyway And (1) At 90° |
| Set Screw Size | 3/8"-16 |
| Set Screw Thread Type | Coarse |
| Single Strand Tooth Thickness | 0.284" |
| Storage Dimension Height | 1.06" |
| Storage Dimension Length | 4 5/16" |
| Storage Dimension Width | 4 5/16" |
Shipping Info:
| Ship weight (kg) | 0.56 |
| Ship height (cm) | 2.69 |
| Ship length (cm) | 9.19 |
| Ship width (cm) | 9.19 |
| 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
- KUNKLE 919BDEV71BME Safety Relief Valve, Male X Female NPT, D Orifice, 1 Inch Inlet Size
- APOLLO VALVES 76104H9A Ball Valve, 3/4 Inch NPT, SS -19, RED GRIP
- EATON XTCERENCOILCY
- QUANTUM STORAGE SYSTEMS AD86-3048P Wire Shelving, 4 Shelves Add-On, 30 x 48 x 86 Inch Size, Proform Green Epoxy
- PARKER 369PLPSP-8M Plug in Elbow, Push-Connect, Composite
- REFLEXITE 18814 Reflective Tape W 1.75 Inch Red/white
- PARKER F602-023A
Explore More
- HI-TECH DURAVENT
- KEYSHAFT
- NORGREN
- FOREVERBOLT
- FRYMASTER
- Squeegee Handles
- Decorative Fixtures
- Spot Welder Accessories
- Collet Accessories
- Mist Cooling Equipment
- OIL SAFE Color-Coded Steel Tube Grease Guns, Lever
- CHICAGO PROTECTIVE APPAREL Apparel Indura Fire Retardant Coveralls
- MEMPHIS GLOVE Cut Pro Kevlar/Synthetic Shell Cut Resistant Work Gloves, 13 Gauge, Black
- ACME ELECTRIC WI750 Series Medium Voltage Transformers, 3 Phase, 60Hz, 2.5kV & 5kV Class
- MUELLER INDUSTRIES 794S Duplex Basket Strainers
- DAYTON Festoon Lead Car Cables
- ANVIL Extra Heavy Eccentric Bevel Swage Nipples
- CEMENTEX USA UltraLite Series, 11 Cal. Shirt And Pant Kits
- GROVE GEAR EL Series, HM-H1 Style, 830 Size, Aluminium Worm Gear Reducers
- GREENLEE Square Punches
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 40BS21 1 1/2 Roller Chain Sprocket, Bore To Size, 1.5 Inch Bore, 3.617 Inch Outside Dia. Steel
€67.69 /unit







