| abstract |
Porous metal powder, aluminium alloy with up to 30% lead, 0.5 to 15% zinc and/or 0.5 to 5% silicon, is bonded with a synthetic plastic, to form the bearing layer. The grain size of the metal should be between 50 and 1000 microns especially between 200 to 400 microns. The synthetic bond should be from the group polyamine, polyethylene, polypropylene PVC or tetrafluoroethylene. |