Logically speaking, even if the temperature was high and the fan had to go into overdrive it still wouldn't make the noise that it makes, at least not when the laptop is new.
So now I'm thinking that maybe my fan is just worn out and might need a replacement. Is it true that these fans have bearings and that they get worn out as time goes by ?
Also I'm not sure if I lubricated it accordingly. I lubricated the fan's rod that goes into a thing and forms the whole cooler system/mechanism.
Yeah, just replace the fan. They do go bad/get noisy on occasion.