1.7*0.74*0.4m Mill / Router building...

[Jonathan]

What have you done there? Can you give some more detail

Er, not much more to say really? Standard thin section bearing with bore bigger than the thread (20mm here, but more would be better to get less axial load on the bearing) placed on the thread at an angle. I'll use a strong spring to pull the bearing against the thread so that it rides over any imperfections. That's what the tabs are for on the mount, to mount the spring.



I'm toying with the idea of pressing a brass insert into the bearing lathed to better fit the 60° thread profile. It's tricky to work out the exact dimensions though...