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  1. cooletti

    Rewelding on 4140 material Rotek slew bearing - previously welded

    What considerations should be looked at when rewelding on a 4140 4' dia. steel slew bearing that is being relocated from one drill rig to another? Concerned that the heat effected zone on the initial weld on the bearing metal has made the area too hard now. Will be testing its brinell hardness...

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