FREE delivery on orders over €150
Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 7/8" |
| Bore Size | 7/8" |
| Bore Type | Finished Bore |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Construction | Welded |
| Construction Type | Welded |
| Finished Bore Size | 7/8" |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Diameter | 3 1/2" |
| Hub Outside Dia. | 3 1/2" |
| Individually Packaged | No |
| Keyway Size | 3/16" x 3/32" |
| Length Through Bore | 1 1/8" |
| Length Thru Bore | 1 1/8" |
| Material | Steel |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 40 |
| Outside Dia. | 6.653" |
| Pitch | 1/2" |
| Pitch Dia. | 6.3727" |
| Pitch Diameter | 6.373" |
| 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 | 1.13" |
| Storage Dimension Length | 6.653" |
| Storage Dimension Width | 6.653" |
Shipping Info:
| Ship weight (kg) | 2.12 |
| Ship height (cm) | 2.87 |
| Ship length (cm) | 16.89 |
| Ship width (cm) | 16.89 |
| 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
- EATON PDG23G0150TFFJ Circuit Breaker, 150 A, 65 kA at 480 VAC, Fixed, ABC, Std Line and Load Lugs, Std
- APPLETON ELECTRIC MLRL505G1NMTL Light Fixture, Low Profile, 50W
- SMC VALVES NCDGBA25-0100-G5PL Round Body Cylinder, 25 mm Size, Double Acting Auto Switcher
- HAMILTON S-CH-12DT Champion Swivel Caster, 12 X 3 Inch Size, 3/4 Inch Precision Tapered Roller Bearing
- REGAL 031434TC Spiral Flute Tap, 7/16-20 Size, H3 Limit, 3 Flutes, Semi-Btm., Bright
- LITTLE GIANT PUMPS 92980015 FTB15CI Self Priming Pump, 1.5 Hp, 115/230V
- SCHNEIDER ELECTRIC 9001KR2RH13 Non-illuminated Push Button 30mm 1no/1nc Red
Explore More
- BAYCO PRODUCTS
- KEYSHAFT
- LOVIBOND
- RUD CHAIN
- ECONOCO
- Track Saw Accessories
- Quick-Disconnect Tube Fittings
- Collet Tool Post and Holder Sets
- Tea Cup Pipe Carriers
- Alternating Relays
- ANSELL 80-400 Activarmr Blue Yellow Natural Rubber Latex Coated Gloves
- IRONCLAD Vibration Impact Gloves
- KRYTOX GPL 105 Series General Purpose Oil
- KRYTOX XHT-1000 Series Extreme High Temperature PFPE Oil
- GLOBE SCIENTIFIC Labeling Tapes, 3/4 Inch x 500 Inch per Roll
- BUSSMANN CAV Series Fuse Links
- PASS AND SEYMOUR Commercial Occupancy Sensors
- SPEARS VALVES PVC Premium Electric Actuated True Lug Butterfly Valves, Zinc Lug, Buna
- BROWNING Single Adjusting Tighteners
- SEYMOUR MIDWEST Shovels
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 40BS40 7/8 Roller Chain Sprocket, Bore To Size, 0.875 Inch Bore, 6.653 Inch Outside Dia. Steel
€126.23 /unit







