FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 1 1/4" |
| Bore Size | 1 1/4" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 1/4" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Diameter | 3 1/4" |
| Hub Outside Dia. | 3 1/4" |
| Individually Packaged | Yes |
| Keyway Size | 1/4" x 1/8" |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| No. Of Teeth | 30 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 30 |
| Outside Dia. | 5.057" |
| Pitch | 1/2" |
| Pitch Dia. | 4.7834" |
| Pitch Diameter | 4.783" |
| 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 | 1.13" |
| Storage Dimension Length | 5 1/4" |
| Storage Dimension Width | 5 1/4" |
Shipping Info:
| Ship weight (kg) | 1.22 |
| Ship height (cm) | 2.87 |
| Ship length (cm) | 12.85 |
| Ship width (cm) | 12.85 |
| 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
- WEATHERHEAD 7755X04X02X04 Male Run Tee, Adapter Tee, Compression x MNPT x Compression
- REED INSTRUMENTS R9905-KIT Reed Data Logging Indoor Air Quality Meter With Humidity Calibration Standards
- REGAL 015301AS53 Extension Hand Tap, #6-32 Size, H3 Limit, 3 Flutes With Nitride & Steam Oxide
- SPEC E00630110440M Extension Spring, Music Wire, 11/25 Inch Overall Length, 0.063 Inch Outside Dia
- EATON ECX09L5QAA-R63/E IEC Starter
- GRAINGER 204-001141 Square End Mill, Center Cutting, 2 Flutes, 9/32 Inch Milling Dia, 3/4 Inch Length Of Cut
- EATON ECN2221AKF Combo Starter, Non-Reversing, 2 Red and 1 Green Pilot Lite, 100A/250V, 3-Phase
- PEER CHAIN 38129 Roller Chain, 50 Pitch, 100 Feet Length
Explore More
- CONTINENTAL INDUSTRIES
- KEYSHAFT
- PEMKO
- SIMPSON ELECTRIC
- WISS
- Panel Truck Accessories
- Key Stock Assortments
- Jib Crane Components
- Lubrication Containers
- End Mill Sets
- LOUISVILLE FE4200HD Series Fiberglass Extension Ladders
- DESTACO 371-M Series Pull Action Latch Clamps
- GLOBE SCIENTIFIC Jars, Wide Mouth, 70 mm Opening
- VNE STAINLESS Long Tangent Elbow, 90 Degrees
- TOUGH GUY 18" Floor Squeegee
- APPROVED VENDOR F Adapter, Male Adapter x MNPT, 316 Stainless Steel
- AIRMASTER FAN Heavy Duty Air Circulator Propellers
- VESTIL CART-DC Series DC Powered Hydraulic Elevating Carts
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 40BS30 1 1/4 Roller Chain Sprocket, Bore To Size, 1.250 Inch Bore, 5.057 Inch Outside Dia. Steel
€109.52 /unit







