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100B9H sprockets with a stock bore comes with the standard 1" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
What separates this 10C440M sheave from the others is that it is made using a high strength cast iron
construction equipment
Pin Diameter (E): 3
4B300E Sheave four-groove 30.35" OD 35B54 Sprockets 100B9H sprockets with a stockThis 4B300E sheave features four grooves, is 30. 35" in diameter, and is designed to use a E bushing. QD (quick detachable) style sheaves offer a wider selection of bore sizes versus a standard "fixed" bore style sheave. Also because they are a two component part if one component fails the entire part doesn't need to be replaced. All of our sheaves are manufactured out of an extremely durable cast iron, are dynamically balanced at the factory, and are
