A universal joint, also referred as 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, for example a steering wheel. It consists of a pair of hinges located close together, oriented at 90° to each other, connected by a cross shaft. Precision line of U-joints are used in millions of cars, light trucks, commercial vehicles and heavy-duty trucks. Newnan has some notable businesses dwaling with the manufacture and supply of universal joints.