For applications requiring higher performance than typical insert couplings, DieQua’s new EC series provides zero backlash, several clamping styles and five different insert types providing varying degrees of torsional rigidity. 3 models provide a variety of connection options, all with zero backlash. 5 insert shore values provide different stiffness ratings. All models offer low inertia for faster acceleration and deceleration with lower torque. Optional stainless steel models, and customized designs, are also available.