The whole Moventas product portfolio from platform to tailor-made solutions is the result of our proven technology including modular components for all drive train solutions. Moventas planetary gear consists of our special knowhow such as integrated bearings, case hardened ring wheels and Flexspider technology. Our product concepts are based on approved methods of regulatory agencies. All the gear units are verified by tests and measurements. Moventas has vast experience from prototype testing and qualification. During the last decade we have performed over one hundred modern wind turbine gear prototype test in MW class alone. Typically prototype gear units go through lifecycle and cold climate chamber tests. We also use virtual prototype environment to define the drive train dynamics.