41BS28 Sprocket With 1" Finished Bore filter_40BS24-FB 08B39 sprockets with a stock

08B39 sprockets with a stock bore comes with the standard 19 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes

Something else that is notable about this 140B23 sprocket is that it fully meets all ANSI Standards

35B80 sprockets with a stock bore comes with the standard 3/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

This 35BS48 sprocket features a 1-1/8" finished bore including a key-way and two setscrews

35BS30 1-1/8" Finished Bore Sprocket Dimensions:

41BS28 Sprocket With 1" Finished Bore filter_40BS24-FB 08B39 sprockets with a stockThis 41BS28 sprocket featured a 1" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 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 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #41 roller chain and sprocket thus preventing premature wear or