Fan Replacement without heatsink

Hi There, I was wondering if there will be any issues replacing the fan with one of same size but no (what I believe to be) heat sink? Whatever the Copper attachment is. The fan bearing went bad so now it shakes and makes a lot of noise when I use my laptop which is quite annoying, I deal with it by using headphones but can't really take it out because of how loud it is. If I can't replace the fan with aftermarket fans that don't have the copper attachment is there anywhere I can purchase the same fan used for this laptop?