Latches/locks/linkage Related Problems of the 2006 Volvo XC90

Latches/locks/linkage problem

I own a 2006 Volvo Xc90 and I am concerned that the rear wheel bearing may be a manufacturers defect. I recently took my vehicle into a Volvo dealer (July 2008 while still covered under warranty) as I felt that it wasn't running properly and it was making weird noises they could not find the problem (I made the dealership provide me with a car fax report as I bought the vehicle as a demo). Just last week, 4,000 miles after the warranty expired the noises got worse and I discovered both rear wheel bearings were bad along with both rear tie rods. I contacted corp. Volvo and they agreed to cover a little over 50% of the entire repairs. I am concerned because while I was researching over the internet I discovered that there are several people with the same car that have experienced the same problem. I even received confirmation from the dealership that my specific vehicle is known for this problem. I found on your website that the tie rod assembly was a recall for my vehicle (06v-155). If Volvo replaced this part as recall on my vehicle why would they go bad again in such a short time frame? would a defective tie rod cause wear and tear on the wheel bearings? I am concerned this is going to happen to other consumers or even worse this defect may cause an accident? I did not feel that I should be held responsible for any of the repairs and I hope that other consumers in my position would not have to go through this as it does appear to be a known and common problem. Please help research this problem.