120B9 Sprocket With Stock Bore 100B11 Sprockets This 100BS23 sprocket features a

This 100BS23 sprocket features a 1-7/16" finished bore with a key-way and two set screws

100BS20 2 7/16" Finished Bore Sprocket Dimensions

Sprocket Size: 100Q20

Something that is notable about this 10B32 sprocket is that it fully meets all ISO Standards

120B9 Sprocket With Stock Bore 100B11 Sprockets This 100BS23 sprocket features aThis 120B9 sprocket is a durable, high quality, and precision sprocket with 9 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 120B9 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #120 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also fully black oxide coated