of the rolling bearing another part of the bearing arrangement being connected as a cathode and a current flowing between the bearing part and the cathode is limited application_number US 201414912688 A description the bearing arrangement shown in fig1 and marked overall with the reference symbol 1 is a roller bearing test bed fe8 according to din 51819 that was originally designed for testing lubricants the functionality of the corrosion protection system according to the invention was verified with tests carried out on this test bed in commercial use of the corrosion protection system the bearing arrangement 1 can be for example a main shaft bearing a transmission bearing or a generator bearing of a wind turbine in the present case a roller bearing 2 of the bearing arrangement 1 is formed as an axial bearing arrangement the roller bearing 2 has two bearing parts 3 4 namely bearing disks of which the bearing disk 3 is connected as an anode and the bearing disk 4 is connected as a cathode of the corrosion protection system the central electronic component of the corrosion protection system is a power supply and control unit 5 that has connections 6 7 to which the bearing disk 3 connected as an anode or the bearing disk 4 connected as a cathode are connected while the bearing disk 4 of the roller bearing 2 is connected to ground.