I am trying to an explicit analysis and when i try to give rotational velocity in the Predefined field manager, the component deformed in the radially outwards direction. I also tried giving rotational velocity using Boundary Condition Manager but gets the same result. I also tried creating a reference point and then giving rotational velocity by making a  kinematic coupling between the Reference Point and inner surface of the component but then also gets the deformed result. Please let me know how can i give rotational velocity to my component. I am trying to simulate a bearing and trying to give rotational velocity to the inner cage.