National engineering company offers all steel flexible couplings. Roha-d couplings are torsionally rigid aall steel flexible couplings which is suitable for highly precision drives where a backlash-free shaft connection is neededrequired.All steel flexible these couplings transmit torque reliably even in the case of very high speeds and compensate for axial, angular, and radial misalignments. They all steel flexible couplings are suitable for temperatures up to 250°c., and these couplings are ideal for synchronous input and output especially in nc and cnc drives. All steel flexible couplingsthese couplings are approved by german lloyd for marine applications.