FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 7/8" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Chain Size | #40 |
| Construction | Welded |
| Construction Type | Welded |
| Finished Bore Size | 7/8" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Dia. | 4" |
| Hub Outside Dia. | 4" |
| Individually Packaged | No |
| Key Way Size | 3/16" x 3/32" |
| Length Through Bore | 1 1/4" |
| Length Thru Bore | 1 1/4" |
| Material | Steel |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 70 |
| Outside Dia. | 11.433" |
| Pitch | 1/2" |
| Pitch Dia. | 11.1446" |
| Product Datasheet | martin-sprocket-100a10.pdf |
| Screw Size | 1/4"-20 x 1/4" |
| Set Screw Location | (1) Over Keyway And (1) At 90° |
| Set Screw Size | 1/4"-20 |
| Set Screw Thread Type | Coarse |
| Single Strand Tooth Thickness | 0.284" |
| Storage Dimension Height | 1 1/4" |
| Storage Dimension Length | 11.433" |
| Storage Dimension Width | 11.433" |
| Type | Type B Bored to Size Single Strand Welded |
Shipping Info:
| Ship weight (kg) | 4.77 |
| Ship height (cm) | 3.18 |
| Ship length (cm) | 29.03 |
| Ship width (cm) | 29.03 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Length Through Bore | Hub Dia. | Bore Dia. | Length Thru Bore | Set Screw Size | Key Way Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
40BS9 1/2 | 1.462" | 9 | 7/8" | 1 1/8" | 1/2" | 7/8" | #10-24 | 1/8" x 1/16" | €29.33 | |
![]() |
40BS9 5/8 | 1.462" | 9 | 7/8" | 1 1/8" | 5/8" | 7/8" | 1/4"-20 | 3/16" x 3/32" | €29.33 | |
![]() |
40BS10 1/2 | 1.618" | 10 | 7/8" | 1 1/4" | 1/2" | 7/8" | #10-24 | 1/8" x 1/16" | €30.42 | |
![]() |
40BS10 5/8 | 1.618" | 10 | 7/8" | 1 1/4" | 5/8" | 7/8" | 1/4"-20 | 3/16" x 3/32" | €30.42 | |
![]() |
40BS10 3/4 | 1.618" | 10 | 7/8" | 1 1/4" | 3/4" | 7/8" | 1/4"-20 | 3/16" x 3/32" | €30.42 | |
![]() |
40BS11 1/2 | 1.775" | 11 | 7/8" | 1 3/8" | 1/2" | 7/8" | #10-24 | 1/8" x 1/16" | €31.80 | |
![]() |
40BS11 5/8 | 1.775" | 11 | 7/8" | 1 3/8" | 5/8" | 7/8" | 1/4"-20 | 3/16" x 3/32" | €31.80 |
Explore Products
- NOTRAX 109C0036BU132 Entry Rug Mat, Low Profile, 3 ft. X 11 ft., Blue
- IDEAL 31-278 Cable and Wire Pulling Lubricants, 40 Deg to 100 Deg F, No Additives, 5 Gallon, Pail
- KIPP K0270.10687X40 Adjustable Handles 1.57 M6 Blue
- COMPX NATIONAL 807504g642 Cylinder Length 1-7/16 in.
- 3M 7100117418 60440147407 / 27140 Cloth Belt, P120 YF-Weight, 4 Inch x 48 Inch, Film Lok, Single Flex, 50 Pcs
- SUPER-STRUT H104-3/4X6EG Threaded Rod, 3/4 In Thread Size, Steel, 6 In Lg., Electro Galv
- COMEPI SDM2K9800W02 Safety Switch, Cable-Pull Interlock with Reset, 15m Maximum Pull Cable Length
- KIPP k1596.408x30 Star Grip With Clamp Force Intensif M08X30, D1=40, H=35, Form:L, Thermoplastic Black, Comp:Steel
Explore More
- DEWALT
- KEYSHAFT
- OATEY
- SCHLAGE
- PRO WELD
- Cleaning Supplies Holders
- Pipe Threading and Cutting Machines
- Soldering Flux
- Electric Shear Accessories
- Chemical Metering Pump Systems
- MECHANIX The Original Hi-Viz D5 Cut Resistant High Visibility Work Gloves
- DESTACO 375 Series Pull Action Latch Clamps, Narrow Base
- DESTACO 324-R Series Pull Action Latch Clamps
- MUELLER INDUSTRIES 186 Carbon Steel Basket Strainers
- MUELLER INDUSTRIES 861 Carbon Steel Y Strainers
- ALPHA FITTINGS Male Adapter
- SPEARS VALVES PVC Clear Y Strainers, SR Threaded Ends, FKM Seals PVC Screen
- SPEEDAIRE Safety Equipment Parts
- ACURITE Weather Stations
- 3M Cubitron II Hookit Dust Free File Sheets
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 40BS70 7/8 Roller Chain Sprocket, Bore To Size, 0.875 Inch Bore, 11.433 Inch Outside Dia. Steel
€165.81 /unit







