challenge One of the largest international steel mills in the world produces flat rolled steel coils for Ford, GM and Chrysler. The mill uses four Electrical Overhead Traveling cranes to transport 125 tons of metal slabs across a pair of #175 rails for the 1,700 ft runway yard. The cranes operate 24/7, and the constant movement creates abrasive and adhesive friction that can take a toll on bridge wheel flanges. When flanges get too thin,

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