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One very important part of a continuous casting plant is the ladle turret. It holds the pouring ladles, which weigh up to 300 t. By means of the ladle turret, the pouring ladles are alternately slewed into pouring and charging position. This function ensures the uninterrupted operation of the continuous casting plant. While one ladle is emptied, a full ladle is provided on the other side.
The bearings in the ladle turret, in spite of being subjected to high forces and considerable tilting moments, reach service lives of more than 10 years.
Cylindrical roller bearings and spherical roller thrust bearings with diameters of more than 1000 mm and INA spherical plain bearings are used.
In continuous casting plants the cast strand is supported by rolls and guided from the vertical to the horizontal plane. In order to restrict deflections, the rolls are supported in several rolling bearings.
These bearings are subjected to high loads, low speeds, splash water and high temperatures.
The rolls are supported in spherical roller bearings and cylindrical roller bearings of various designs (open, sealed, unsplit or split).
In the upper segments needle roller bearings are used.
Bearings in continuous casting plants reach service lives of one to several years, depending on location and maintenance. The service life is decisively influenced by the type and quality of the sealing areas.