40BS31 Sprocket With 1" Finished Bore 1008 This 1TB58 Pulley uses a

This 1TB58 Pulley uses a P1-Series Bushing

40BS40 7/8" Finished Bore Sprocket Dimensions:

Housing Number: FC 206

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40BS31 Sprocket With 1" Finished Bore 1008 This 1TB58 Pulley uses aThis 40BS31 sprocket features a 1" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets,