100SF15 Sprocket (QD Type) #60 Coupling Sprockets This 100BS15 sprocket features a

This 100BS15 sprocket features a 2-3/16" finished bore with a key-way and two set screws

and precision 42 tooth sprocket that is manufactured to accept a R1 bushing

and precision sprocket with 17 hardened teeth that is manufactured to accept a Q1 bushing

100A27 Sprocket Dimensions

100SF15 Sprocket (QD Type) #60 Coupling Sprockets This 100BS15 sprocket features aThis 100SF15 sprocket is a durable, high quality, and precision sprocket with 15 hardened teeth that is manufactured to accept a SF bushing. Sprockets that have hardened teeth last longer, perform better, 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 #100 roller chain and sprocket. Meeting strict ANSI Standards