R+W backlash-free miniature bellows couplings are constructed of clamping hubs permanently connected by a stainless steel bellows. The specific shape of the bellows makes it highly laterally flexible while maintaining high torsional rigidity and low inertia. The miniature model of the coupling (max. torque 10 Nm) can be used in applications operating at 120,000 rpm thanks to its symmetrical design and ISO1940 G2.5 balancing.