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35B20 sprockets with a stock bore comes with the standard 1/2" ID hole with no keyway or set screws and can be easily machine bored to custom sizes
and precision sprocket with 24 teeth
the R16-ZZ bearing features raceways that are precision honed to a superb finish
What separates this 2TB50 pulley from the others is that it is made using a high grade-35 cast iron
4B38SD Sheave four-groove 4.15" OD filter_H50BS28 35B20 sprockets with a stockThis 4B38SD sheave features four grooves, is 4. 15" in diameter, and is designed to use a SD 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
