It sounds to me like one of your bearings is slightly cocked in its pocket, likely the floating one. I just did read a thread here on bearing installation here that I'll try to not garble, but the guy's technique was to install the fixed bearing and retainer first, clamp the axle pointing up, slide the wheel atop the axle, install the distance collar, then the other bearing in the floating pocket just till it was seated on the collar.
In any event, one or both or your wheel bearings aren't aligned, and it's probably the floating one.
N.
I did not do them myself. What is a "floating" bearing?
Look at your wheel and you will see that one side has a screw-in retainer. The recess or "pocket" that bearing sits in is square and flat, you install the bearing with the proper sized bearing driver till it's seated squarely and firmly, seated in that pocket, then the retainer is screwed in and staked with a pin punch so it can't back out. That's the fixed point of orientation for the wheel to the bike.
Then the spacer or 'distance collar' is installed, its job is to maintain exact spacing to the bearing on the other side, and bear the axial load down the assembly.
The bearing on the other side does not sit in a pocket with a square flat bottom, it only bears against the wheel on its outer edge. It's supposed to be installed just till it's resting on the spacer, but obviously it needs to be square and parallel so it's aligned with the other bearing and the axle doesn't bind.
That's the point of installing with the axle in place, you're aligning things in one go if it's done right.
So no disrespect intended whatsoever, if you don't have a bearing driver and a long flat drift it might be hard to get that aligned. If you can figure out which direction the misalignment is you might be able to carefully tap on the outer bearing surface with a drift and get it straightened, but you risk damaging the bearing.
If you paid to have that installed you might ask them to straighten it. Bring the axle with you if you do.
N.
