A cast sliding surface bearing for guiding and supporting moving machine members consists of a light alloy matrix (4), which contains a cast-in shaped body (2), which constitutes portions of the sliding surface (6) and is made of a hard material and has open cavities, which contain infiltrated matrix...http://www.google.de/patents/US5648620?utm_source=gb-gplus-sharePatent US5648620 - Sliding surface bearing
