A Midwestern steel mill was using GRAPHALLOY® bushings for the
horizontal rollers in their cooling beds. The bushings were thriving
under severe heat and water spray conditions.
Because of this success, the mill was considering using GRAPHALLOY flange bearings for another application: the vertical guide rollers
along the sides of the cooling beds that were used to keep the hot steel from
running off the sides.
These guide rollers remain static until a piece of hot
steel slams up against them. At this moment, they are expected to turn
instantly to guide the steel back onto the cooling bed. This mill had
been using conventional greased rolling element bearings in the vertical
guides that were lasting only a few months. GRAPHALLOY proved to be successful on the vertical rollers as well and the mill has since retro-fitted additional lines
with GRAPHALLOY.
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