Will the bearings rust if you wipe them with a paper towel?
i've had the same bearings for about 5 years and the only reason why is because of my bearing protectors. i have never cleaned them but i need new ones now. i dont think you should clean them. you should probably buy bearing protectors and you'll be fine. my board has been waterlogged about 3 times and my bearings still survived because of the protectors. well gl skating