[MetalMan]

The magnets only lose anything even close to a significant amount of strength if they are allowed to get hot. As long as temps are kept under 180deg., magnet fade isn't a problem. Bearings do wear down, and their life can be prolonged if they are cleaned/oiled occasionally. Eventually they need to be replaced. The HV-Maxx has removable endbells, so the bearings can be easily replaced. But it might be a good idea to open the motor occasionally just to get out any dirt that might have gotten into it (like happens with the SS5800 motor).