Create coincident surfaces
 

Hello CFD-Community,
I am currently working on an ICEM script that creates a geometry of a lubricating gap of a bearing by bottom-up-method.
I noticed that when I create cylindrical surfaces by curves (two circles), the boundaries of these surfaces do not exactly match the curves they're based on. This is espacially problematic when, in the later process, I want to intersect two surfaces and there is a clearance between the generated intersection points and the original curves.

So what I am looking for is an ICEM scripting command that forces ICEM to create surfaces that are coincident with the original curves.

Thanks in advance,
David J.