Rear axle lpunta problem

Brand: Chevrolet
Model: Corsa
Year: 2004
Kilometers:
SCOPE: 1.6
Power (CV):
Fuel: Gasoline
Injection Type:
Marches exchange rate: Manual - 5 speeds
Modifications:

I have a problem with the rear axle tip on the right side.
It turns out that soon the dough bearing time changing, the tip of the axis was cut, so the wheel came out.
Well buy the axis tip with new bearings and buckets for the drum, change everything new.
And I didn't travel more than 50 km. and the axis tip was cut again.
The peculiar thing is that like the first time, the internal bearing of the dough was intact and that of outside is practically moving inside the bucket.
I would appreciate some advice of what the faya can be or that I have to change apart from the axis tip, because I imagine that if I only change the tip of axis and bearings with buckets, again it will be shortened. What do I have to do? .
thank you...

Estimated, at the time of tightening the central Turkish you gave you the torque that indicates you manufactures? The rodaminetos you installed were good family?
did you fix that the bearing settled the bucket well with the axis? The only thing that can produce that fault is that the outer rhodamineto is grouped leaving the wheel clouned and when trying to turn the axis short, so it is very important to follow the factory procedure for the adjustment or preload of these bearing. Greetings

Like Hugo I think the problem is in the squeeze of the Sentral nut since it determines the useful life of the bearing, such as two bearings and both are conical do not wear much squeeze are squeezed by hand until it becomes hard and it is given a room back more and it would be, obio you have to grease the road foods before putting them.