Close-up of a finned aluminum fan clutch drive hub and bearing b…

Extreme close-up of a new thermal fan clutch, looking down its threaded steel drive hub into the copper-colored bearing bore of the finned aluminum body. Cast cooling fins, the threaded fan mounting bosses and a printed box label are visible around it; date stamp reads 23-Apr-09.

AI caption April 2009 · Photo 176 of 237