Patent ID: 7314313

Claim:
A balancing machine for the measurement of, and compensation for, any unbalance of rotors, with a sliding bearing ( 1 ) for rotatably mounting a rotor ( 2 ) to be balanced and a supply device for supplying the sliding bearing with a fluid, said sliding bearing ( 1 ) comprising a bearing shell ( 6 ) with a hollow cylindrical bearing face mounting a rotor section of the rotor having a cylindrical a sliding face, characterized in that the bearing shell ( 6 ) is made of a hard ceramic material and the supply device is designed to supply the fluid to the sliding bearing in such a minimum amount of the fluid in a range from 1 ml/h to 100 ml/h so as to avoid forming a supporting film of the fluid that would separate and prevent contact between the cylindrical sliding face of the rotor section and the cylindrical bearing face of the bearing shell.