Posted by John Swensen on June 13, 2002 at 15:32:05:
In Reply to: "miniball" posted by InkyDaveB on June 13, 2002 at 14:01:49:
These are ball-joints for the linkages for rotary valves. They, typically, have a stainless steel, drilled, ball, through which a screw attaches the ball to the valve lever or stop arm, and a bronze housing around the ball, which allows the ball to rotate in three axes (two of which allow only limited movement).