Topic: Shelti table specs?

[NIQ]

I was wondering if any shelti owners could give me the specifications on the 1-1/2" snap bearings that go on the pro foos II and III seen here: http://shop.store.yahoo.com/foosdirect-store/fts-110-369.html

i'm assuming the outer diameter is 1-1/2" but i was wondering what the inner radius is (i.e. the rod size)

thanks!