X-ray tube bearing

X-ray tube bearing assembly comprising: a hub defining an axis of rotation, the hub including first and second flanges that at least partly define a substantially cylindrical hub opening; and a shaft connected to the hub, the shaft including: a first end received within the hub opening; and a shaft cavity formed in the first end and including a bottom having a substantially curved transition areahttp://www.zys-bearing.com/key-x-ray-tube-bearing-45/