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160B21H sprockets with a stock bore comes with the standard 1-1/2" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
This 100BS25 sprocket features a 1-7/16" finished bore with a key-way and two set screws
100A17 sprockets with a stock bore comes with a 1-1/4" inside diameter plain hole and can be easily machine bored to custom sizes
endangering equipment and personnel
140B11H sprockets with a stock bore comes with the standard 1-1/2" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
140F30 Sprocket (QD Type) IWIS Drive Systems 160B21H sprockets with a stockThis 140F30 sprocket is a durable, high quality, and precision sprocket with 30 hardened teeth that is manufactured to accept a F bushing. Sprockets that have hardened teeth last longer, perform better, 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 #140 roller chain and sprocket. Meeting strict ANSI Standards
