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  1. Raildev

    Replace SAE J431 gear with 65-45-12 ductile

    Any reasoning for not replacing the material of our current gear (SAE J431 G3000) with a ductile Iron (65-45-12)? I am replacing a gear that is a known failure mode in a switchmachine on the railroad. I would like to get away from a cast blank of the J431 Iron and go with readily available gear...

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