Abstract
Tribology has been recognized as key science to save energy, to save consumption and to realize reliable and durable machines. Solution of engineering problems is therefore the most important project of tribology research in U. K. On the other hand, the limit of the performance of modern high-tech machinery is often governed by characteristics of the contact interface. In such high specification machinery, tribology is increasingly essential as the key design input to achieve ultimate performance. A new concept of machine design from the viewpoint of tribology is therefore necessary : "Tribologically-based machine design, defined as design of the overall system based on to achieve ultimate tribological performance" in addition to the more conventional "design of a reliable mechanical element based on tribological understanding." Tribological research for tribologically-based machine design is believed as new direction of future tribology.
