60BS20 20-Tooth Sprocket #60 Chain, 1-15/16" Bore 50-Tooth Sprocket This 120R40 sprocket is a

This 120R40 sprocket is a durable

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60BS20 20-Tooth Sprocket #60 Chain, 1-15/16" Bore 50-Tooth Sprocket This 120R40 sprocket is aThis 60BS20 sprocket featured a 1 15 16" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 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 #60 roller chain and sprocket thus preventing premature