Steel Disc Couplings

Torsionally rigid, absolutely backlash-free steel disc couplings of the new series RINGFEDER® TND – originating from the proven TSCHAN® POSIMIN® and GERWAH® series – are suitable for the most diverse applications and particularly ideal for all drive tasks requiring freedom from wear and maintenance as well as excellent misalignment compensation and positioning accuracy. The characteristic and functional centerpiece of these powerful couplings are disc packs developed on the basis of in-depth FEM analysis, that consist of multiple circular, torsionally flexible single discs made of stainless spring steel connected by means of high-precision sleeves to form a compact unit. High-strength screws alternately connect the disc packs, if necessary via mounted spacers, to the coupling hubs, so that the required torque is transmitted reliably, precisely and safely by the steel discs which are loaded by tension and compression. At the same time, this ensures the desired compensation capability for angular, axial and, depending on the coupling type, also radial shaft misalignments at minimum restoring forces. Thanks to the unitized design of the series and the extensive, highly flexible modular system, there is always one coupling version available that is optimally suited for the users’ individual application.