Screw compressor having lubricating oil system

A screw compressor having a lubricating oil system, the compressor being provided with a plurality of radial bearings and a plurality of thrust bearings, a rotor shaft is supported rotation-freely by each bearing,

• wherein
• at least one radial bearing or at least one thrust bearing is provided with a hole space with a bottom, the hole space being bored in the radial bearing and the thrust bearing so that a temperature-detecting terminal is inserted in the hole space;
• at least one penetrating hole is provided at the casing wall of a casing that houses the radial bearing, so that the outside of the casing communicates with a space for inserting the radial bearing through the penetrating hole, the space for inserting the radial bearing being formed inside of the casing wall;
• the temperature-detecting terminal together with a sheath tube is led into the space for inserting the radial bearing through the penetrating hole, the sheath tube sheathing the lead wire connecting the temperature-detecting terminal to at least one detected temperature output terminal outside of the casing.