Patents Represented by Attorney, Agent or Law Firm Volker Ulbrich, Esq
  • Patent number: 6258413
    Abstract: A method is provided for fabricating a self-lubricating bearing as a laminate of a metallic substrate and a series of raised structures formed integrally therewith and extending orthogonally therefrom. A fluoropolymer sliding or bearing layer is superposed with the substrate, with the raised structures embedded therein. The raised structures serve to hold the bearing layer in place to help prevent it from sliding along the surface of substrate during bearing operation. This anchorage to the substrate enables a relatively thick bearing layer to be utilized to relatively reduce tendency to creep. Alternatively, the structures provide a bearing fabricated according to the disclosed method having a relatively thin load bearing layer with a relatively constant friction coefficient over its life, with the structures acting as thermal and electrical bridges for relatively high heat and electrical conductivity between the substrate and a supported article such as a rotating shaft.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: July 10, 2001
    Assignee: Norton Company
    Inventors: Peter Woelki, Dominique Petit, Friedrich Harig