rhitee05
10 kW
The two-rotor design has good and bad aspects for the bearings. The good is that the magnetic forces will nominally cancel each other out as far as the bearings are concerned - the internal braces between rotors will take care of those loads and there will be net zero force on the entire assembly. The bad is that it's an unstable equilibrium, such that a slight shift to either side will unbalance the forces in such a way that the imbalance wants to get larger.
I'm not an ME and I certainly don't know much about bearing design. But, given the above, it seems like you'd want bearings that are a) precise, and b) capable of handling the unbalanced forces due to modest misalignment. So you would need bearings with at least some thrust capability, but probably not enough to withstand the entire magnetic attractive force.
I'm not an ME and I certainly don't know much about bearing design. But, given the above, it seems like you'd want bearings that are a) precise, and b) capable of handling the unbalanced forces due to modest misalignment. So you would need bearings with at least some thrust capability, but probably not enough to withstand the entire magnetic attractive force.