We EPG group one of the Biggest Chain and sprocket manufacturer in China. We provide you most type of industry chains, agricultural chains, conveyor chains and related sprockets etc……..

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This We are aiming to meet the demands of the clients around the world.. a specialized supplier of a full range of chain & sprockets, sprockets, gears, gear racks, V-belts, couplings and reducers， pto shaft, agricultural gearboxes….Standard single-strand roller chain & sprocket, standardized by ASME, is an assembly of alternating pin links and roller links. The distance between pin centers is called the pitch. The pitch is what categorizes the size of the chain & sprocket. The larger the pitch, the higher the load rating. Chain & Sprockets with small pitches carry smaller loads, operate more quietly, and at higher speeds. Multi-strand, small-pitch roller chain & sprockets are a good solution for high-load, high-speed applications.D40BS21H sprocket with 1″ finished bore is a durable, high quality, and precision double sprocket with 21 hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don’t. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40-2 double roller chain & sprocket and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. D40BS21H sprockets with a 1″ finished bore are supplied with a standard key-way and 2 set screws. If you don’t see the finished bore size you need and are needing custom bore sprockets, we have the capability of providing them within a fast lead time and at a really competitive price. For more information, or a custom sprocket quote please contact us and we will be happy to assist you.Dimensions: