Abstract: The invention relates to an apparatus for insulation monitoring between a low-voltage supply system and a high-voltage supply system, wherein the apparatus can be connected both to a high-voltage positive connection and also to a high-voltage negative connection and also to the low-voltage supply system, wherein the apparatus has a plurality of electrical contacts for coupling monitoring connections to the high-voltage circuit by means of a respective high-voltage positive connection and by means of a respective high-voltage negative connection, it being possible for said contacts to be connected in different sections of the high-voltage supply system.

Abstract: The invention relates to an apparatus for insulation monitoring between a low-voltage supply system and a high-voltage supply system, wherein the apparatus can be connected both to a high-voltage positive connection and also to a high-voltage negative connection and also to the low-voltage supply system, wherein the apparatus has a plurality of electrical contacts for coupling monitoring connections to the high-voltage circuit by means of a respective high-voltage positive connection and by means of a respective high-voltage negative connection, it being possible for said contacts to be connected in different sections of the high-voltage supply system.

Abstract: A plain bearing material includes a metallic substrate material having a surface, and a sliding layer covering the surface of the substrate material. The thickness of the sliding layer is 100 ?m to 320 ?m, and the metallic substrate material has a yield point of less than 100 N/mm2.

Abstract: A play-free plain bearing arrangement with a defined preset torque includes a plain bearing, wherein the plain bearing comprises a bearing housing and a bearing sleeve inserted into the bearing housing, wherein the bearing sleeve and the bearing housing are open axially. The play-free plain bearing arrangement also includes a shaft as a bearing mate of the bearing sleeve. The plain bearing arrangement is characterized in that the shaft having an oversize is inserted in the bearing sleeve in such a way that the bearing sleeve and the bearing housing expand.

Abstract: A play-free plain bearing arrangement with a defined preset torque includes a plain bearing, wherein the plain bearing comprises a bearing housing and a bearing sleeve inserted into the bearing housing, wherein the bearing sleeve and the bearing housing are open axially. The play-free plain bearing arrangement also includes a shaft as a bearing mate of the bearing sleeve. The plain bearing arrangement is characterised in that the shaft having an oversize is inserted in the bearing sleeve in such a way that the bearing sleeve and the bearing housing expand.