Curlyben
Mar 24, 2013, 09:20 AM
Difficult to answer without a context and some other details.
ma0641
Mar 24, 2013, 11:02 AM
Maybe a hub? Some fans, older models in particular, had rubber vibration dampers that fall apart after a number of years. Is this what you are asking about?
mygirlsdad77
Mar 24, 2013, 02:48 PM
A fan center looks something like this. Commonly found on older systems.43089