The elbow of a revolute robotic arm also has a hinge joint that allows the forearm to move up and down.
Designers should check plans of existing facilities to identify hinge joint locations.
Failed bearing pads and crushing at the hinge joint.
hinge joint in Medicine
hinge jointn. A uniaxial joint in which a broad, transversely cylindrical convexity on one bone fits into a corresponding concavity on the other, allowing motion in one plane only, as in the elbow. Also called ginglymoid joint.