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the 6804-ZZ bearing features raceways that are precision honed to a superb finish
35BS16 7/8" Finished Bore Sprocket Dimensions
This 40BS43 sprocket features a 1-3/16" finished bore including a key-way and two setscrews
and precision sprocket with hardened teeth that is manufactured to accept a 1610 bushing
50BS29 1 3/8" Finished Bore Sprocket Dimensions
80BS25 Sprocket With 1-1/4" Finished Bore 41B20 Sprockets the 6804-ZZ bearing features racewaysThis 80BS25 sprocket features a 1 1 4" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 25 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
