Lucky_star
Still Shining!
Glad it worked. 
Paroh, these fans are brushless ones. So, the oil we add just lubricates the bearings. Doesn't harm the rotor even if some oil accidentally flows in to it. The ones you are mentioning may be with contact brushes, which may get damaged if the oil comes in contact with it.
Paroh, these fans are brushless ones. So, the oil we add just lubricates the bearings. Doesn't harm the rotor even if some oil accidentally flows in to it. The ones you are mentioning may be with contact brushes, which may get damaged if the oil comes in contact with it.