McKenzie, your bearings have been gone for years..
David, LOL...
I change all 10 bearings once a year, cost me about 36 bucks. I get quality bearings at the auto parts store I frequent. Kenny is right that if they turn all the time, they wear out quickly. I adjust them so when I turn the blade, they don't roll. But when cutting they will turn, but not a solid turn. At first I was making them too tight and they wore out a lot quicker.
The biggest thing in setting up a band saw is centering the blades "teeth" on the center of the wheel like shown in the video Mac posted.
Shredd, the bearings kick the blocks butt. Much better straighter cuts. Maybe you are making them too tight. That wears them out and they do get noisy. Watch the video above that Mac posted.