To improve method and device of monitoring a bearing device 1 having at least one bearing 2 in a housing 3 of a roller journal bearing of a roller 10 in a continuous casting facility 12 so as to timely start maintaining work or modifying work of the bearing device.

The bearing device is monitored by a) measuring a process amount W in the bearing 2 or a portion adjacent to the bearing 2, b) guiding the measured value of the process amount W to an evaluating device 5, c) comparing the measured value with a stored set value Wmax./min., and d) generating a signal just after the measured value W exceeds or becomes lower than the stored set value Wmax./min..