Well you could start by looking at Jody's video herehttps://youtu.be/CXsd0AmWueUhttps://youtu.be/1R3eqRui-zc
You could do that and use; gears and a chain, pulleys and a belt, shaft driven or rotating it by hand.
Now inside of my automotive collision repair class (autobody) we have a table about the size of this table in the following web address. https://m.alibaba.com/product/605970499 ... .25.6gDynI
Now at this web address is about the size of table we have at school I guess the same size. The table that we have works like the photo I have attached is essentially what we have. It rotates with either ball bearings. Here is a ball bearing explained. http://www.globalspec.com/learnmore/mec ... l_bearings
or it could be two pieces of pipe/tubing one lager than the other. On welded to the table and on welded to the legs. There are four 1"X1" square tube that are short enough that if you have to move it allow you to balance it one one leg and move it more easily than just pushing or pulling. Good luck.