Gage for checking trunnion ball socket

[Frank S]

After replacing the trunnion ball on the 6-way blade of a D3B dozer I needed to tighten up the socket in mounts in by welding a few passes inside. then to check for fit the easiest way is with a go no go gage. I found a 3" internal snap ring that was close to the right size. to make it the exact same as the diameter of the trunnion ball I squeezed it down and clamped the ends it worked perfectly


By rotating the ring throughout the internal spherical cavity, I was able to tell where I needed to either add more weld or grind off some of the weld I had already put in place