Zero-Max Wind Turbine Couplings Deliver 100,000 Nm Of Torque –Retrofit Models Available And New Designs For OEM Applications

Proven and tested under conditions simulating a 20-year load spectrum of continuous
operation, Zero-Max turbine couplings easily handle torque spikes and high misalignment
installations.
Zero-Max couplings withstand high misalignment while remaining torsionally stiff. They
are designed with composite disk packs at both ends of a center spacer. These uniquely
designed disk packs provide high strength and generous flexibility. The composite disk packs
(flex elements) 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 the application, 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),
these center spacers can be engineered to withstand in excess of 100,000 Nm of torque.
Zero-Max wind turbine couplings have many additional design advantages. The flex
elements electrically insulate the turbine’s generator from the gear box, eliminating stray
electrical current that can leak across the coupling, thus preventing bearing damage to the gear
box. The coupling protects the generator by transferring lower reaction loads to the generator
bearings. Also, the coupling’s composite material withstands all types of environmental
elements, including temperature extremes from -40 to +70°C, and also moisture and chemicals
native to the nacelles of wind turbines.
Zero-Max is a leading designer and manufacturer of wind turbine couplings for over 30
years. It serves the needs of leading wind turbine manufacturers worldwide with designs that
exceed most OEM turbine coupling life requirements, proven through decades of successful
real-world applications.