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which insures proper contact between the #60 roller chain and sprocket
80A50 sprockets with a stock bore comes with a 1-1/4" inside diameter plain hole and can be easily machine bored to custom sizes
This 41BS72 sprocket features a 1-3/16" finished bore including a key-way and two setscrews
Dimension (D): 6
50B18 sprockets with a stock bore comes with the standard 5/8" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
80BS18 Sprocket With 2" Finished Bore filter_H40BS37 which insures proper contact betweenThis 80BS18 sprocket features a 2" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 18 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 #80 roller chain and sprocket thus preventing premature wear
