Safety overload couplings BHH with metal bellows. With clamping hubs for backlash-free connection of two shafts with length compensation. Torque Range: 3 – 500Nm. Outer Diameter: 49 – 129mm. Bore Diameters: 6 – 65mm. Perfect Torque limiter for adopting servomotors, e.g. in testing equipment, automation techniques, packing machines.