This series introduces a complete range of low-cost elastomer couplings that combine high precision and custom configurability with an economical price. The couplings are engineered to minimize space requirements as well as design and installation time. Key features include a single bolt radial clamping hub, star-shaped elastomer element with involute tooth profile, and high shore hardness to ensure zero backlash over the life of the product. Utilizing the EKC provides compensation for small shaft misalignments and the oscillation resonance is dampened. The couplings are both cast and machined and offer same day delivery.