If it is just the bearings it is an easy and cheap fix provided you can press or knock the old ones out. When pumps are exposed to the elements, i.e. wet, the bearings can really get rusted in so that you can't get the old ones out without destroying something. Tried freeing the bearings on a pump last year that was exposed to the elements for a number of years. Used every trick I know and no luck. Rest of the motor was pretty weatherbeaten too. My pump has resided in a poolhouse for 9 years and looks like new. More reasons to keep rain and snow off a pump.
Good Luck.
Al