| 摘要 |
<p>1,249,428. Bearings. LEAR SIEGLER Inc. 16 April, 1970 [6 June, 1969], No. 18122/70. Heading F2A. A bearing element has a backing member to which is secured a bearing layer of at least two different organic resins of different hardness, each resin being substantially continuous throughout the layer and the resins being interlocked. One of the resins may be P.T.F.E or other fluorocarbon resins, e.g. polymonochlorotrifluoroethylene. The other resins may be thermosetting resins, e.g. phenol-formaldehyde resins, alkyd, melamine, epoxy or polyimide resins. The bearing layer may also include additional lubricants, e.g. P.T.F.E. fibres or graphite. One of the resins may be an opencelled foam which has been impregnated with a second resin to provide the bearing layer. The cell walls of the foamed resin may be coated with another resin and the coated cells filled with a third resin.</p> |
