Is there something wrong with axle holes?

[Michael Heidemann]

In real life they fit the inside axle holes, but in our library the max radius to fit in axle holes is only 2.8284 LDU ( sqrt(2^2+2^2) ). This seems quite a big margin.

Ok - please define "axlehole". We have a lot of primitive to cover axleholes.
Please tell me a part no. of the part that should fit into that axlehole.

I need to have those data to determine where the problem is.

Forget this post, I just saw the other answer - now I know what you are talking about.