Cold Rolling Mill
History
A major steel producer was not satisfied with the performance of the four-row tapered roller bearings that were installed in its cold rolling mill: steel shavings from the production process were getting into the bearings and having a detrimental effect on reliability.
Corrective Measures
After analysing the bearings, the grease, the structure and the design of the billet mill, we recommended the use of NSK bearings made of the new WTF steel, since this type of steel is designed for extreme operating conditions such as those involving solid and liquid contamination. Operational life has since leapt to 2,700 hours from the previous bearings´ meagre 800 hours.
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