gdl of elements of assembly (cuscinet planted on tree)

[stabum]

Hello everyone,
I write you because I'm in trouble with a problem in inventor 2013 that I'm sure for you will be available, but for me it is reason of infinite frustration.
Suppose we work in the "assieme" environment. I modeled a tree that I "enhanced" to the fixed reference system (grounded). Now I have to insert a roller bearing. the inner ring of the bearing must be planted on the tree, so it must be coaxial to the tree and have no relative rotation than it. the outer ring, on the other hand, must obviously be free to rotate compared to the first (and therefore to the tree), where it will be planted on a suitable seat made on a frame.
the bearing, as well as the tree, represents a part of the shaft+bear.
if you open the bearing (it is in turn a set, having downloaded it from the site of theskf), you see as an outer and inner ring are free to rotate each other. This degree of freedom, however, so to speak is ignored when importing this assembly (cuscinetto) inside a new assembly (shaft+cuscinetto, in fact), almost that in this new together the individual components (the bearing in this case) are seen as individual rigid bodies.
question: how can I resurrect and make actual, in the axieme tree+cuscinetto, the "internal" constraints (or the internal grids) of the axieme "cuscinetto"? ? ?

I hope I've been clear enough to help you.
Thanks again to everyone.

 

[MauroM]

you should solve by setting the bearing as "flexible".
But you really need something like that?

 

[stabum]

you should solve by setting the bearing as "flexible".
But you really need something like that?

with flexible everything works wonder! thank you so much!! !

 

[stabum]

you should solve by setting the bearing as "flexible".
But you really need something like that?

first of all thanks to the answer... I was on the train with my phone and the laptop, I was going to a meeting, I saw that with flexible you could "disconnect" the inner ring bike from the outer one and I had to close the connection. . Sorry I didn't thank you enough.
Now the problem has moved.
in the sense that I finished the assembly, I checked his behavior in inventor studio (all ok) but once imported everything in showcase the flexible constraints are not recognized. result? not only the outer ring and the spheres, but also the inner one are fixed. and this is not good! how is it possible that the so decantated recognition of the constraints of showcase fail with flexibiki constraints?? Any ideas? I need the rendering of the animation that showcase is able to do...:frown:
Thanks again for the help

 

[MauroM]

I press that I don't know in inventor studio or showcase.
remove the flexible, bring the inner ring and the outer ring to the first level, virtually treat the bearing as any part.