Can't imagine why it would last for so short a time, even the sleeve type ones will last longer. Have you tried a ball bearing fan? Could try cleaning it every couple months with some compressed air.
I'm not a puter wiz but my computer fan broke down three weeks after I unpacked it. It was the one cooling the chip. Is that CPU? Anyway after hasseling with the mfg. it was easier for me to buy new one for $12. They look very dilicate to me. I'm sure it's common for them to go out. After a couple of weeks use the replacement started making funny noises, like it was slipping/slowing. Then the noises stopped and it's been working fine ever since.