BEARING FOR VERTICAL AXIS WIND TURBINE AND VERTICAL AXIS WIND POWER GENERATION DEVICE

摘要

The diameter of a ball (7) and the curvature of a running groove can be selected in order to achieve the desired startup torque and load rating in a bearing rotatably supporting a vertical shaft of a vertical axis wind turbine. For example, the curvature of the running groove is between 54% and 100%, and the ratio of the ball diameter with respect to the vertical shaft (2) is no greater than 20%.