How to find the min and max bending radius of a cable.

Only the manufacturer can tell you this because the wire assembly is most likely proprietary. 

I never though about it.. I been in some tight spots too..

If it fits it works.. If it don't it won't.. Kind of the rule of thumb for me.

Strange question really.. Lots of luck anyways.

Regards

First. Buy two identical cables.
Second: Bend one of the cables until it stops working.
Third: Install the second cable, but don't bend it as much as the one you destroyed.
Warning: This method works, but it is not very good for your bank account.

Many Belden tech specs give the minimum bend radius,
Find a similar cable and check.

When we installed studios RoT was min ≈10x diameter