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100BS21 2 7/16" Finished Bore Sprocket Dimensions
100R31 Sprocket Dimensions
and precision sprocket with 27 hardened teeth
Minimum Breaking Load: 6
120BS13H Sprocket With 1-1/4" Finished Bore 1.5" Stock Bore 100BS21 2 7/16" Finished BoreThis 120BS13H sprocket features a 1 1 4" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 13 hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this 120BS13H sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #120 roller chain and sprocket thus preventing
