Federal-mogul Wiesbaden Gmbh

Federal-mogul Wiesbaden Gmbh & Co. Kg

Federal-mogul Weisbaden Gmbh & Co. Kg

Federal Megal Wiesbaden Gmbh + Co. Kg

Maik Wilhelm

Gerd Andler

Philippe Damour

Uwe Lehmann

Neil Graham

Gerhard Weil

Stefan Rittmann

Thomas Aubele

Fabio Cosentino

Karsten Bresser

Berndt-Peter Reichl

Andreas Dengler

Michael Waldschmidt

The invention relates to a plain bearing composite material, comprising a supporting layer () made of steel, a bearing metal layer () made of copper or a copper alloy, which is applied to the supporting layer (), and a functional layer () made of aluminum or an aluminum alloy, which is applied to the bearing metal layer ().

Plain bearing composite material

The invention relates to a plain bearing composite material with a supporting layer made of a copper alloy, and with a lining applied to the bearing metal layer. The copper alloy can contain 0.5-5% by weight of nickel, 0.2 to 2.5% by weight of silicon and=0.1% by weight of lead. The lining can be a sputtered layer that is applied without an intermediate layer. The invention also relates to methods for producing this composite material.

Plain bearing composite material, use thereof and production methods therefor

The invention relates to a slide bearing composite material which comprises a support layer from a copper alloy and a bearing coating applied to said support layer. The copper alloy may comprise 0.5 to 5% by weight of nickel, 0.2 to 2.5% by weight of silicon, &#x2266;0.1% by weight of lead. The bearing coating can be a galvanic layer, a sputter layer or a plastic layer. The invention also relates to methods of producing such a composite material.

Slide bearing composite material

A method and an apparatus for testing the adhesive strength of overlays attached to the inside of plain bearing bushings. The method is characterized in specifying clearance between the plain bearing bushing tested and a rotating or oscillating pin extending through the bushing. Next, feeding a liquid medium into the gap between the bushing and the pin and oscillating the plain bearing bushing and pin relative to one another perpendicularly to the bushing axis for a given period and examining the bushing after the load test. The corresponding apparatus comprises a pin mounted rotatably in a pin receptacle and on which there is arranged a first drive mechanism. In addition, a bushing receptacle is provided, in which the plain bearing bushing is fitted, wherein the pin is mounted with predetermined clearance in the bushing. The apparatus additionally comprises a mechanism for bringing about oscillating relative movement of bushing receptacle and pin receptacle.

Method and apparatus for testing the adhesive strength of overlays of plain bearing bushings

The invention relates to gudgeon pin bushes which find application in highly-stressed engines, with the problem of a tendency to pit, in particular in the middle regions (with relation to the radial axis of the bush), on starting the motor. According to the invention, the problem can be avoided whereby the friction surfaces of a gudgeon pin bush, at least in the high loading region, have the following parameters measured over the bush cross-section in the axial direction: the support percentage is a minimum of 99.0% to a depth of at most 1.800 m, the depth of the roughness core profile is at most 0.30 m, the proportion of the material Mr1 of the roughness core profile is at most 8%. The gudgeon pin bush can be obtained by finishing the bearing surface of the gudgeon pin bush using a surface machining method.

Piston pin bushing

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Ober-Olm, Germany

Maik Wilhelm