160S80 Sprocket (Taper Bushed) 1.25" Finished Bore the 10B-4 roller chain is

the 10B-4 roller chain is pre-loaded to a specific amount to reduce initial and long-term elongation

140A16 Sprocket Dimensions

This 100BS25 sprocket features a 2-15/16" finished bore with a key-way and two set screws

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

160S80 Sprocket (Taper Bushed) 1.25" Finished Bore the 10B-4 roller chain isThis 160S80 sprocket is a durable, high quality, and precision 80 tooth sprocket that is manufactured to accept a S2 bushing. Something that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #160 roller chain and sprocket, thus preventing premature wear or breakage and this means that it will directly interchange with most other manufactures sprockets. This sprocket is also black oxide