FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 5/8" to 2 1/4" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Chain Size | #40 |
| Construction | Welded |
| Construction Type | Welded |
| Finished Bore Size | 5/8" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Dia. | 3 1/4" |
| Hub Outside Dia. | 3 1/4" |
| Individually Packaged | No |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| Max. Bore Size | 2 1/4" |
| Min. Bore Size | 5/8" |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 31 |
| Outside Dia. | 5.217" |
| Pitch | 1/2" |
| Pitch Dia. | 4.9423" |
| Product Datasheet | martin-sprocket-100a10.pdf |
| Single Strand Tooth Thickness | 0.284" |
| Storage Dimension Height | 1" |
| Storage Dimension Length | 5.22" |
| Storage Dimension Width | 5.22" |
| Type | Type B Single Strand Welded Reboreable |
Shipping Info:
| Ship weight (kg) | 1.37 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 13.26 |
| Ship width (cm) | 13.26 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Material | Pitch Dia. | No. Of Teeth | Length Through Bore | Storage Dimension Length | Storage Dimension Width | Storage Dimension Height | Hub Outside Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
40B8 | Steel | 1.3066" | 8 | 7/8" | 1 15/16" | 1 15/16" | 15/16" | 0.984" | €23.84 | |
![]() |
40B9 | Steel | 1.462" | 9 | 7/8" | 1 15/16" | 1 15/16" | 15/16" | 1 1/16" | €24.93 | |
![]() |
40B10 | Steel | 1.618" | 10 | 7/8" | 1 15/16" | 1 15/16" | 15/16" | 1 1/4" | €25.49 | |
![]() |
40B11 | Steel | 1.775" | 11 | 7/8" | 2 9/16" | 2 9/16" | 15/16" | 1 3/8" | €27.97 | |
![]() |
40B12 | Steel | 1.932" | 12 | 7/8" | 2 9/16" | 2 9/16" | 15/16" | 1 9/16" | €29.88 | |
![]() |
40B13 | Steel | 2.089" | 13 | 7/8" | 2 9/16" | 2 9/16" | 15/16" | 1 9/16" | €30.42 | |
![]() |
40B14 | Steel | 2.247" | 14 | 7/8" | 2 9/16" | 2 9/16" | 15/16" | 1 11/16" | €30.42 |
Explore Products
- VALLEY CRAFT F83715A7 Platform Truck, 30 x 48 Inch Deck, 6 x 2 Inch Tire, 1600 lbs Load Capacity
- ANVIL 0330556218 Welded Pipe Nipple, Schedule 80, 5 Inch Pipe Size, 4 Inch Length
- VERMONT GAGE 141278590 Plug Gage, Class X, NoGo, Steel, 0.7859 Inch Size
- VERMONT GAGE 141270300 Plug Gage, Class X, NoGo, Steel, 0.7030 Inch Size
- VERMONT GAGE 141189330 Plug Gage, Class X, Go, Steel, 0.8933 Inch Size
- GROVE GEAR R8473073.00 Solid Input Shaft Worm Gear Reducer, Hollow Bore Output Worm Gear
- ENERPAC W4207R200 Hex Reducer, 2-7/16 Inch To 2 Inch Size
Explore More
- CDI CONTROL DEVICES
- GHS SAFETY
- KEYSHAFT
- ASSEMBLY TOOL
- KABLE KONTROL
- Rubber Edge Trim Seals
- Open End Wrenches
- Hex and Torx Key Sets
- Universal Joints
- Cast Iron Rod Stock
- DWYER INSTRUMENTS 651 Series Temperature Transmitters
- DESTACO 8100/8300 Series Pneumatic Swing Clamps
- FABENCO Z Series Self-Closing Safety Gates
- ANSELL 11-515 Hyflex High Visibility Cut Resistant Gloves
- GLOBE SCIENTIFIC Diamond RealSeal Bottles, Wide Mouth, HDPE
- SPEARS VALVES PVC True Lug Butterfly Valves, Lever Handle, SS Lug, EPDM
- OIL SAFE Adhesive Drum Ring Content Labels
- APPROVED VENDOR Yellow Zinc Plated Grade 2 Steel Standard Flat Washers
- GROVE GEAR GRG Series, BM-R Style, 821 Size, Ironman Worm Gear Reducers
- TRIMCO GROUP Exit Device Trims
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 40B31 Sprocket, 40 Chain, 31 Teeth, 4.942 Inch Pitch Dia., 5.217 Inch O.D., Steel
€91.00 /unit







