Method and device for monitoring a bearing arrangement

A device for monitoring a bearing arrangement, having at least one bearing, in a mounting element of a roller journal bearing of a roller in a stand of a rolling mill train, comprising:

• at least one sensor which monitors a value of a process quantity at the bearing or in an area surrounding the bearing;
• conducting means for conducting the monitored value of the process quantity from the at least one sensor;
• comparing means for comparing the measured value of the process quantity with a stored preset value;
• and
• means for triggering a signal when the measured value exceeds or falls below the stored preset value.

A stand in a rolling mill train comprising:

• a plurality of rollers each provided with a roller journal;
• a bearing arrangement supporting the roller journal of at least one roller in a mounting element, the bearing arrangement comprising at least one bearing;
• at least one sensor provided in the bearing arrangement or the mounting element to monitor a value of one of:
• a force acting on the bearing;
• moisture in the bearing or a moisture content of lubricant in the bearing;
• temperature prevailing in the bearing;
• deformation of the housing;
• vibration frequency of vibration amplitude of the bearing;
• vibration property of the bearing;
• comparing means for comparing the monitored value with a stored preset value;
• and
• means for triggering a signal when the measured value exceeds or falls below the stored preset value.