Abstract: The invention relates to an insulation monitoring device for simultaneously monitoring an ungrounded power supply system comprising network sections that can be interconnected via coupling switches, comprising a signal generator for generating a measuring signal and a coupling circuit for coupling the measuring signal to the power supply system. According to the invention, the insulation monitoring device comprises a coupling circuit for each interconnectable network section to be monitored, a switchable electrical connecting element being arranged for connecting adjacent coupling circuits.

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 tolerance ring with functional layers has an annular band and an elastomeric layer. The assembly also may have a low friction layer, which may be bonded, calendared or laminated thereto. The low friction material may completely encapsulate the annular band.

Abstract: A tolerance ring with functional layers has an annular band and an elastomeric layer. The assembly also may have a low friction layer, which may be bonded, calendared or laminated thereto. The low friction material may completely encapsulate the annular band.

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 system for elastically compensating for wear, thermal expansion and misalignment comprises a ring located between a housing and a pin in the bore of the housing. The ring has a backing layer, an expanded grid structure having a plurality of openings, a low friction layer penetrated into the openings of the expanded grid structure, and adhesive for bonding the backing layer, expanded grid structure and low friction layer together to provide elastic deformation of the ring between the housing and pin.

Abstract: A tolerance ring with functional layers has an annular band and an elastomeric layer. The assembly also may have a low friction layer, which may be bonded, calendared or laminated thereto. The low friction material may completely encapsulate the annular band.

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 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.