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Sprocket #: 4012
Common Interchanges: 50B76H
This 50BS25 sprocket featured a 1-1/4" finished bore with a key-way and two set screws
This 40BS25 sprocket featured a 5/8" finished bore with a key-way and two set screws
Our UC205-15 bearing is made to industry standards dimensionally for direct interchangeability with just about any brand
50BS21 Sprocket With 1-1/8" Finished Bore filter_H40BS9 Sprocket #: 4012This 50BS21 sprocket featured a 1 1 8" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 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 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #50 roller chain and sprocket thus preventing premature wear
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