99 Nissan Almera 1.6L MTX. Basically, at speeds between 20kph to at least 80kph there is a low frequency wobble in the steering wheel. Seems like frequency increases very slightly with speed, but it always stays just a wobble and never turns into a vibration.
I'm not really sure when it started, but it's fairly recently. The front wheel bearings are newish as are the shocks and brakes, all replaced maybe 3000 kilometers ago. The car passed inspection about a month ago and they do a pretty thorough check of steering components for any kind of play and also check basic alignment. I did a visual inspection of the tires for anything unusual and also ran my hands along the surface and didn't come up with anything that stood out.
The only work that's been done recently was I replaced the high pressure hose for the steering pump. Reservoir has enough fluid in it.
I have had to slam on the brakes a few times recently, but didn't notice any flat spots on the tires.
So any ideas would be helpful.
EDIT August 17th, 2018
Well, just went for the annual inspection, and they said there is too much free play in the wheel bearings, and in the steering linkage, either the tie rod or tie rod end.
The only thing is that the bearings, shocks and brakes were all replaced together less than 8000 km / 5000 miles ago.
Could a loose tie rod make the bearings fail that quick? I'm suspicious that the wheel bearings are fine ( they make no noise at all ) and the problem is elsewhere...
EDIT August 19th, 2018
Well, after inspecting everything myself, it turns out that the tie rod and bearings are both fine. I found a loose axle nut, which mimics both of those symptoms since the affected wheel will have free play in both the 6-12 plane, and the 3-9 plane.
Just have to get it on the highway to see if that also solves the wobble problem, buy my guess is that it will.