We already have magnetic bearings in real life fans - the Corsair ML range of computer fans. They're fantastic, move a lot of air and high static pressure, but

We already have magnetic bearings in real life fans - the Corsair ML range of computer fans. They're fantastic, move a lot of air and high static pressure, but the only noise that comes off them is the moving air, they're virtually silent. They also have a huge lifespan compared to fluid dynamic bearings, rifle bearings and sleeve bearings because there's no friction leading to wear on bearings.