the articulation of the radius and ulna in the arm is a pivot joint.
Examples of pivot joint
pivot joint
Mounting the wing on a single pivot means the joint has to be strong, heavy and mechanically complex.
From the newscientist.com
While there are numerous variations, stockless anchors consist of a set of heavy flukes connected by a pivot or ball and socket joint to a shank.
From the en.wikipedia.org
Spacewalkers Heidemarie Stefanyshyn-Piper and Steve Bowen prepared their spacesuits and equipment for the first of four outings to repair a rotary joint used to pivot huge solar power panels.
From the newscientist.com
Another improvement is the way the tiny, dual-joint speakers can be made to pivot in six directions instead of two, allowing the wearer to position them at almost any angle.