The Reich TOK Couplings are ideal for applications that require different engine types or changes to test parameters. The couplings are self-centering and completely backlash and maintenance free. The TOK Coupling System provides the lowest possible torsional stiffness through the use of two flexible coupling elements. The torsional stiffness can be changed and adapted easily by replacing the flexible elements.

Ringfeder Corporation offers five different couplings for a variety of connection sizes and applications including cardan shaft connections for standard applications, intermediate shaft for low stiffness and constant velocity shaft for high speed testing. The TOK Couplings are available for maximum torque ranges from 420-4000 Nm and for maximum engine speeds ranging from 7,000-10,000 rpm.

These hi-tech test bench couplings are ideal for high speed/high torque testing and are able to absorb axial, radial and angular misalignment. Extremely durable, the TOK is also lightweight due to its aluminum construction. The flanges can also be adapted to DIN or Spicer bolt patterns.