120BS21 Sprocket With 1" Finished Bore 100B9 Sprockets This 120J70 sprocket is a

This 120J70 sprocket is a durable

While the phosphate coated and then painted finish adds corrosion resistance to the 10C95J sheave

This 120BS28 sprocket features a 2" finished bore with a key-way and two set screws

This 100Q20 sprocket is a durable

120BS21 Sprocket With 1" Finished Bore 100B9 Sprockets This 120J70 sprocket is aThis 120BS21 sprocket features a 1" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 21 teeth. Something that is notable about this 120BS21 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 black oxide coated which increases resistance to the environment