Just did a quick search on the A380 and found this.
http://http://designnews.com/article....html?ref=nbra
"To meet the loading (high) and weight (low), they employed a new, high-strength steel and titanium shaft and a bi-metal, spherical plain bearing designed to support loads up to 3,800 kN. The bearing's bronze inner ring allows a double rotation path. The plane is expected to enter service in 2005."
Not definitive I know as the loads quoted above will also be to cope with gusts and peaks, but it does give some idea.
By the way, is that true that the A380 is naturally unstable, as implied by ahramin?
