Reich High-Speed Flexdur
The FLEXDUR – HighSpeed (FD-HS) is a rigid, all-metal coupling delivering precise, backlash-free torque at high speeds.

The FLEXDUR – HighSpeed (FD-HS) is a torsionally rigid, all-metal coupling designed primarily for high-speed test-bench applications. It features bushed flexible disc packs made from stainless spring steel, delivering backlash-free torque transmission via high-strength fitted screws. Its modular design ensures adaptability to various installation setups, offering a compact, maintenance-free solution with excellent dynamic performance.
Advantages
- Torsionally rigid & backlash-free torque transmission ensures high accuracy.
- Directly adaptable to torque transducers, reducing component count.
- High-speed capability: suitable for speeds up to 33,000 rpm.
- Flexible misalignment compensation: handles axial, radial, and angular shaft displacements with low restoring forces.
- Low mass moment of inertia / high power density, boosting dynamic response.
- Operating temperature range: –35 °C to +110 °C.
- Maintenance-free and lubrication-free, offering a nearly unlimited service life with proper alignment.
Technical Data / Specifications
- Torque range: 320 Nm up to 12,500 Nm.
- Speed capability: up to 33,000 rpm.
- Construction details: uses disc packs of stainless spring steel and clamping hubs (shrink disc connections) for backlash-free shaft coupling.
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