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This 2B5V52 Sheave uses a B bushing
Something else that is notable about this 100B21 sprocket is that it fully meets all ANSI Standards
35B21 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
SK bushings
100R35 sprockets are made to accept a R1 size taper bushing which we also stock with a wide range of bore sizes
50BS44 Sprocket With 1-3/4" Finished Bore filter_H50B59 This 2B5V52 Sheave uses aThis 50BS44 sprocket features a 1 3 4" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #50 roller chain 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. We also offer stock bore
