120BS30 Sprocket With 1" Finished Bore 35-Tooth Sprocket 100B17H sprockets with a stock

100B17H sprockets with a stock bore comes with the standard 1-5/16" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes

Bore Size: 2-15/16"

This 100B16 sprocket is a durable

Dimension (P): 1-15/16"

120BS30 Sprocket With 1" Finished Bore 35-Tooth Sprocket 100B17H sprockets with a stockThis 120BS30 sprocket features a 1" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 30 teeth. Something that is notable about this 120BS30 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