I am trying to design a very rigid tilting mechanism for my router. For this purpose I had a look at table saws, which seem to be supported by 2 mechanisms, one in front, one at the back, called "trunnions".
Such a trunnion consists of part of a circle, with a circular precision ground track, and a mating mart. The part of the circle is as such that the center of rotation coincides with the surface of the table.
However, when looking for "trunnion", I find medieval cannons as well as brand/product-specific constructions, which seem rather expensive. Does such a mechanism have other names? The router in question is a 20kg model, just as an indication of size. My last attempt was "circular track bearing", but i doubt that i am looking in the right direction.
Could anyone provide a pointer?