40H30 Sprocket (Taper Bushed) Metric Roller Chain Master Links This 3C140E Sheave uses a

This 3C140E Sheave uses a E QD bushing

100R60 Sprocket Dimensions

and precision 60 tooth sprocket that is manufactured out of high-quality steel

6307-2RS Ball Bearing Dimensions

This 40BS10 sprocket featured a 3/4" finished bore with a key-way and two set screws

40H30 Sprocket (Taper Bushed) Metric Roller Chain Master Links This 3C140E Sheave uses aThis 40H30 sprocket is a durable, high quality, and precision sprocket with hardened teeth that is manufactured to accept a H bushing. 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 #40 roller chain and sprocket which prevents premature wear or breakage. This sprocket is