An air bearing is a device, usually made from a rubber-type fabric, that is designed to inflate with compressed air and forms a floating action above the floor surface it is sitting on.
Incorporated into an air caster load module, the air bearing is then used, with others in a series of three or more, to simultaneously float heavy loads away from the floor surface on a thin film of air thus allowing the loads to be floated – similar to a hovercraft – to a new destination.