Zero-Max”s Composite Disc Couplings for the wind turbine industry are designed with patented composite disc packs at both ends of a center spacer, providing strength and flexibility at the same time. The packs provide a distinct advantage over other coupling component designs by allowing a surplus of parallel and axial misalignment, while remaining torsionally stiff through all harmonic ranges of the wind turbine’s oscillating load. Depending on application, the Zero-Max’s center spacers can be machined out of steel, composite glass fiber or 6061-T6 aluminum. Through the use of Finite Element Analysis (FEA), the center spacers can be engineered to withstand in excess of 70,000 Nm of torque depending on the material selected. The coupling’s composite material withstands temperature extremes from -57 C to +121 C.