Lagerwey invented the single main bearing concept for wind turbines and has now developed a new standard for its modular main bearing. Two robust and compact tapered roller bearings form the bases of an oil lubricated and smart modular unit. The rigidity and over-engineered housing concept results in lifetime reliability. All of our bearings are repeatedly tested in our factory before final assembly. The main bearing operates at low temperatures, which increases the longevity of the seals.