The diameter of the wheel is around 90 m. With a rotation speed of 3 rpm a 'gravity' of 0.43g can be achieved. To reach 1g a frequency of 4.5 rpm would be needed.
While this still seems reasonable, the stress on the structures and cables would increase quite a lot. We have 1 g here at Earth. When you look on the cables of a suspension bridge, this gives a good impression what is needed to support structures at 1g.
Actually, the rotating station was just a fun piece, added to the Axiom station. I think it is quite unrealistic, as it has no power supply, etc. For now I will probably not put any more work into it.