A universal joint, universal coupling, U-joint, Cardan joint, Hardy-Spicer joint, or Hooke's joint is a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction, and is commonly used in shafts that transmit rotary motion. It consists of a pair of hinges located close together, oriented at 90° to each other, connected by a cross shaft.
Read more about Universal Joint: History, Equation of Motion, Double Cardan Shaft, Double Cardan Joint, Thompson Coupling
Famous quotes containing the words universal and/or joint:
“I had rather believe all the fables in the Legend, and the Talmud, and the Alcoran, than that this universal frame is without a Mind; and, therefore, God never wrought miracle to convince atheism, because his ordinary works convince it.”
—Francis Bacon (1561–1626)
“Your letter of excuses has arrived. I receive the letter but do not admit the excuses except in courtesy, as when a man treads on your toes and begs your pardon—the pardon is granted, but the joint aches, especially if there is a corn upon it.”
—George Gordon Noel Byron (1788–1824)