US 6,981,799 B2
Slide bearing for a centrifugal pump
Hans-Dieter Sturm, Gerolsheim (Germany); Frank Sehr, Birkenheide (Germany); and Anja Dwars, Nuremberg (Germany)
Assigned to KSB Aktiengesellschaft, Frankenthal (Germany)
Filed on May 23, 2003, as Appl. No. 10/444,064.
Application 10/444064 is a continuation of application No. PCT/EP01/13096, filed on Nov. 13, 2001.
Claims priority of application No. 100 58 499 (DE), filed on Nov. 24, 2000.
Prior Publication US 2004/0013332 A1, Jan. 22, 2004
Int. Cl. F16C 33/06 (2006.01)
U.S. Cl. 384—297 6 Claims
OG exemplary drawing
 
1. A slide bearing for a centrifugal pump lubricated by a medium pumped by the pump, said pump having a housing and a rotatable shaft, said slide bearing comprising a stationary part disposed in the housing of the centrifugal pump and a rotatable part which is disposed on the shaft of the centrifugal pump and interacts with the stationary part to form a sliding pair, wherein one part of the sliding pair is made of a composite material, and the other part of the sliding pair has a sliding surface that is made of a hard metal material and is supported by a supporting material, wherein the hard metal material of the sliding surface and the supporting material that supports the sliding surface of said other part are joined by a bond produced in a molten state.