Description
This D12B40 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our D12B40 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore we also can supply these sprockets with a specific plain or finished (has key-way and set screws) bore size. We also offer upgrades on our D12B40 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 40 tooth sprocket, we also stock a high-quality 12B-2 roller chain and a wide array of roller chain accessories. For more information or to get a quote on D12B40 sprockets, please contact us and one of our sales team members will be happy to assist you.
D12B40 Sprocket Dimensions

- Sprocket Size: D12B40
- Tooth Count: 40
- Pitch Diameter: 242.80mm
- Stock Bore: 25mm
- Maximum Recommended Bore: 85mm
- Hub Diameter (H): 130mm
- Length Thru Bore (L): 50mm
- Sprocket Weight: 13.67 kg
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