Phil,
In 70 years time the trucks of today won't be around. There'll be nothing left of em, so bearings won't be a problem!
Don't be too upset about that, there won't be any furniture, electronics, or much of anything else still around either. Oh, I tell a lie. According to the Supersize Me documentary, the burger buns from a well known fast food outlet will still look fresh, cause of the preservatives! But that's all. Everything else will be rotting beneath the ground. Including me.
something else about food.........they're NOT bloody 'fries'...........they are
chips 