If your motor is getting loud, the bearings are starting to go. It will keep getting louder until it finally seizes up. The motor needs to be replaced. Bearings are not commonly replaced because replacing the bearings is pretty expensive, and then you will still have an old motor that may well develop another problem soon. We have a line of new energy effecient pool motors. It may be worthwhile to upgrade at the same time as replacing your existing motor, thus resulting in high energy savings!
