Assembly converted into a part has a bigger size than the assembly

Hello everyone

I am actually working on an assembly composed of 850 components and I wanted to make a motion analysis with this assembly.

The fact is the solver is too low to calculate my simulation.

So I decided to convert subassemblies into parts and I have created a new assembly with these new parts.

Everything was okay until I discovered that my simulation was lower than the previous one. In fact I observed that each of these parts has a bigger size than the subassemblies.

This seems of course illogical...

Thank you very much and I am sorry if the question is too trivial...

Selin

SolidworksImport/export