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35B18 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
This 40BS43 sprocket features a 7/8" finished bore including a key-way and two setscrews
5304-2RS double row sealed ball bearings possess higher radial and axial load capacities in either direction when compared to single-row ball bearings
160A21 sprockets with a stock bore comes with a 1-1/2" inside diameter plain hole and can be easily machine bored to custom sizes
Minimum Breaking Load: 36
4B56SD Sheave four-groove 5.95" OD 1.1875" Stock Bore 35B18 sprockets with a stockThis 4B56SD sheave features four grooves, is 5. 95" 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
