100BS13 Sprocket With 1-15/16" Finished Bore 34-Tooth Sprocket This sprocket is also black

This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up

and precision sprocket with 19 hardened teeth

100BS21 2 3/16" Finished Bore Sprocket Dimensions

Bore Size: 1-7/16"

This 100B22 sprocket is a durable

100BS13 Sprocket With 1-15/16" Finished Bore 34-Tooth Sprocket This sprocket is also blackThis 100BS13 sprocket features a 1 15 16" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 13 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 100BS13 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #100 roller chain and sprocket thus preventing