FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 1 1/8" |
| Bore Size | 1 1/8" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 1/8" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Diameter | 2 3/4" |
| Hub Outside Dia. | 2 3/4" |
| Individually Packaged | Yes |
| Keyway Size | 1/4" x 1/8" |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| Max. Bore Size | 1 7/8" |
| Min. Bore Size | 1 1/8" |
| No. Of Teeth | 21 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 21 |
| Outside Dia. | 3.617" |
| Pitch | 1/2" |
| Pitch Dia. | 3.3548" |
| 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 | 4 5/16" |
| Storage Dimension Width | 4 5/16" |
Shipping Info:
| Ship weight (kg) | 0.7 |
| 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 Pitch | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
40BS9HT 5/8 | 9 | 1.4619" | 1.674" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 5/8" | 1/2" | €44.55 | |
![]() |
40BS10HT 1/2 | 10 | 1.618" | 1.839" | 7/8" | 1/4"-20 | (2) 90° Apart (No Keyway) | 1/2" | 1/2" | €47.07 | |
![]() |
40BS10HT 5/8 | 10 | 1.618" | 1.839" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 5/8" | 1/2" | €47.07 | |
![]() |
40BS10HT 3/4 | 10 | 1.618" | 1.839" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 3/4" | 1/2" | €47.07 | |
![]() |
40BS11HT 1/2 | 11 | 1.7747" | 2.003" | 7/8" | #10-24 | (1) Over Keyway And (1) At 90° | 1/2" | 1/2" | €49.62 | |
![]() |
40BS11HT 5/8 | 11 | 1.7747" | 2.003" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 5/8" | 1/2" | €49.62 | |
![]() |
40BS11HT 3/4 | 11 | 1.7747" | 2.003" | 7/8" | 1/4"-20 | (1) Over Keyway And (1) At 90° | 3/4" | 1/2" | €49.62 |
Explore Products
- GEORG FISCHER 9853-080 Flange Cpvc 80 8 Inch Socket 150 Psi
- BOSTON GEAR 710780-050-SET
- MARTIN SPROCKET CMW16044H35 Wing Pulley, Mine Duty, 16 Inch O.D., M-HE35 Bushing, 44 Inch Face Width, Steel
- ADVANCE TABCO WS-KD-36-GR Wall Shelf, 36 x 11 x 9 Inch Size, 11 x 11 Inch Size, 60 lb Load Capacity, Aluminum, Satin
- PARKER VS372PTC-4-4 Composite DOT Push-to-Connect Fitting, Push-to-Connect x Push-to-Connect x MNPT, Imperial
- EATON 28-5863-3-BLA Standard Orientation Translucent Lens, Amber
- GRAINGER 702-103450 Round Blank, 3/4 Inch Dia., 12 Inch Length, Ground Finish
Explore More
- DASCO PRO
- HUBBELL LIGHTING - DUAL-LITE
- KEYSHAFT
- LANSING FORGE
- Raptor Supplies, Your Ultimate Mro Supplier
- Reference Books
- Fully Threaded Studs
- Colorimeters
- Marking Chalk and Refills
- Specialty Mats
- COTTERMAN Ladder Safety Cages
- DESTACO 424, 441 Series Squeeze Action Plier Clamps
- VIEGA PROPRESS Adapter Flange, Bronze, Press x Flange
- BUSSMANN LKB Series Specialty Fuses
- SHUR-LINE Indigo Series Paint Brushes
- REGAL Unipass Taper Pipe Drills and Taps, HSS, Bright
- GEARWRENCH All Purpose Socket Sets
- SUBURBAN Sine Bars
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 40BS21HT 1 1/8 Roller Chain Sprocket, 1.125 Inch Bore, 3.617 Inch Outside Dia. Steel, Hardened
€96.53 /unit







