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100A41 sprockets with a stock bore comes with a 1-1/4" inside diameter plain hole and can be easily machine bored to custom sizes
Outside Diameter: 28
This 100BS9 sprocket features a 1-3/16" finished bore with a key-way and two set screws
Sprocket Size: 100BS8
Post assembly
100BTB23 Sprocket (Taper Bushed) Hollow Pin Roller Chain 100A41 sprockets with a stockThis 100BTB23 sprocket is a durable, high quality, and precision sprocket with 23 hardened teeth that is manufactured to accept a 2517 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 #100 roller chain and sprocket which prevents premature wear or breakage. This
