Abstract: The invention relates to a method for producing a metal base material that is provided with a sliding layer that has a thickness of more then 50 ?m, said base material being used as a sliding element. According to the invention, the base material is coated with a paste of the sliding layer material that contains at least one high-temperature polymer in addition to a fluoropolymer, and the base material so coated is subjected to a thermal treatment. The past applied to the base material contains as the fluoropolymer between 40% by volume and 75% by volume polytetrafluorethylene (PTFE) or polytetrafluorethylene (PTFE) with other fluoropolymers added and between 60% by volume and 25% by volume of the at least one high-temperature polymer, each based on the entire composition of the finished sliding layer. The high-temperature polymer used is selected from those high-temperature polymers whose melting pint is not below 327° C.

Abstract: A lubricated plain bearing having at least one dirt guide groove formed on the sliding surface, which dirt guide groove extends at least partially to a greater extent in the circumferential direction of the bearing shell than in the axial direction of a shaft mounted therein, extends as far as an edge of the bearing and is open at the edge, such that dirt particles transported by the dirt guide groove to the edge can be discharged to the outside.

Abstract: The invention relates to a semi-annular sliding bearing shell comprising two circumferential end sections (14, 16) and a radial inner face (10) along which a sliding surface (12) lies. Said bearing shell also comprises grooves (18) which are formed on the inner face (10) in the region of at least one of the end sections (14, 16), which run in the circumferential direction, and which are separated in the axial direction. The grooves (18) run inwards on the circumferential end (16, 18) of the sliding bearing shell beginning in the circumferential direction with a decreasing width B and with a decreasing depth T. A groove (18) lies on the exterior of each side in the axial direction, said groove intersecting the corresponding axial edge (24, 26) of the sliding surface.

Abstract: A thrust washer (14) in the form of a semi-circular flanged ring includes at least two radially inward-directed outer connection pieces (22) on the inner edge of the thrust washer (14) for the connection with a radial bearing part (12), which are located in the circumferential direction on both sides of a contrived centerline (M) of the thrust washer (14) and in each case have an inner edge (23) facing the center line (M) and an outer edge (23a) turned away from the centerline (M). The invention also relates to a radio axial bearing with a radial bearing part and a thrust washer of such a type connected with the radial bearing part. The inner edges (23) in each case include an angle (?), which is 45° and 85°, with a tangent on the inner side connected in the center of the connection piece (22) at the semi-circle described by the thrust washer (14), in which the outer edge (23a) runs parallel to the respective inner edge (23).

Abstract: The invention relates to a plain bearing composite material with a supporting layer made of steel, a bearing metal 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 an electrodeposited layer, a sputtered layer or a plastic layer. The invention also relates to methods for producing this composite material.

Abstract: The invention relates to an antifriction composite comprising a metal support layer, an intermediate layer produced from an aluminum alloy and a bearing layer produced from an aluminum alloy. The components of the aluminum alloys of the intermediate layer and the bearing layer are identical except for an additional soft phase portion in the bearing layer. Said soft phase portion may include lead, tin and/or bismuth. The invention also relies to a method for producing the inventive antifriction composite.

Abstract: 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, ?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.

Abstract: A sliding bearing element is characterized in that a bearing material that is bonded to the backing is disposed at least at the edges of the backing in form of wires in the circumferential direction and that a soft material is located at least in a space between said wires. At least one intermediate wire can be disposed between the two edge wires generally running in the circumferential direction. The method comprises the following processing steps: providing a strip of steel or any other material having the required degree of strength which forms the backing of the bearing to be produced, bonding at least one wire at each of the two edges of the backing strip, whereat disposing the wires in such a manner that said wires run in circumferential direction generally, and filling out the spaces between the wires with soft material.

Abstract: The invention relates to the use of lead-free sliding layers in the laminated composite materials for slide bearings or bushes. According to the invention, the laminated composite material comprises a support layer, an antifriction layer (3) produced from a copper alloy or an aluminum alloy, an intermediate nickel layer (2) having a thickness >4 ?m and a sliding layer (1) consisting of approximately 0 to 20% by weight of copper and/or silver and the remainder tin. The sliding layer is electrodeposited from a methlysulfonic acid electrolyte.

Abstract: A collar bearing comprising a bearing shell and at least one thrust washer, whereby the at least one thrust washer is fixed on an outer convex circumferential surface of the bearing shell to define a joint site that extends between the convex outer circumferential surface of the bearing shell and a concave inner circumferential surface of the thrust washer, the at least one thrust washer being welded along a weld seam to the bearing shell such that the weld seam extends axially between an outer thrust facing and an opposite inner surface of the at least one thrust washer, and the weld seam extends over only a part of the joint site.

Abstract: 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.

Abstract: The invention is a method for the production of a composite multilayer material having a backing layer, a bearing metal layer of a copper alloy or an aluminum alloy, a nickel intermediate layer and an overlay consisting of about 0-20 wt. % copper and about 0-20 wt. % silver, the combined maximum wt. % of copper and silver being about 20 wt. %, the rest being bismuth, and the layer thickness of the nickel layer amounts to more than 4 ?m by electrodeposition, in which the overlay is deposited from methyl sulphonic acid-based electrolyte.

Abstract: The invention relates to a connecting rod-bearing combination comprising a bearing for a small connecting rod eye of a connecting rod which serves to receive a piston pin that supports a piston. The invention also relates to a method for producing a connecting rod-bearing combination of the aforementioned type. The aim of the invention is to be able to exert an influence on the connecting rod-piston combination whereby enabling a fine tuning of the oscillating masses. To this end, the invention provides a connecting rod-bearing combination, which is post-machined in the area of the small connecting rod eye during which material is removed form a mass that corresponds to the difference between the oscillating mass of the connecting rod-bearing combination and a stipulated oscillating mass.

Abstract: A flange sleeve comprising at lest one flange formed thereon, having no gap at the joint or having a controllably adjusted width of the gap at the joint. The flange has two crowding recesses at least in the metal coating thereof in at least two points distributed over the flange in the direction of the periphery. According to the method for producing the flange sleeves, the edge of the flange is bent. At least two crowding recesses in at least two points distributed over the flange in the direction of the periphery are made at least in the metal coating thereof, the recesses preferably being made by bending the edge of the sleeve. The invention also relates to a bending tool and a bending device.

Abstract: The invention relates to a collar bearing split shell, comprising a bearing shell and two thrust washers which are located on said bearing shell. The invention also relates to a collar bearing comprising two collar bearing split shells, each of which has a bearing shell, at least one bearing shell being provided with two thrust washers located on said bearing shell. The invention also relates to a thrust washer for a collar bearing split shell. The aim of the invention is to provide a collar bearing which ensures that the two collar bearing split shells of a collar bearing are essentially flush with each other when installed.

Abstract: A piston pin bushing is described which has a sufficient lifespan at higher piston pressures. The piston pin bushing has in each transition region a perforation. The area of material reduction is limited to at least one transition region between the apex lines. The bushing material in this transition region is at least so reduced that in the inserted position a portion of the radial pressure of the piston pin bushing in the area of the apex lines is shifted from the middle to the area of both bushing ends.

Abstract: A method is described for producing composite multilayer materials which exhibit optimum properties throughout their entire service life. The composite multilayer material comprises a backing layer, a bearing metal layer, an intermediate layer and an electrodeposited overlay, which exhibits a hardness which increases continuously from its surface in the direction of the bearing metal layer. The method provides for the electrodeposition as overlay of a lead-free alloy with at least one hard and one soft component, the current density being modified within the range of from 0.3 to 20 A/dm2 during the deposition process and/or the temperature of the electroplating bath being modified within the range of from 15° C. to 80° C.

Abstract: A multilayer material for sliding elements with a metallic backing layer and a plastics overlay applied thereto achieves good adhesion to the substrate without the disadvantages of known PVDF-based bearing materials. The plastics overlay comprises a PVDF content of 60-95 vol. %, the remainder consisting of PTFE or PTFE and at least one further component with a density of <7 g/cm3. The content of this further component may amount to a maximum of 5 vol. %. The other components comprise fully or partially aromatic polymers such as PI, PAE, polyamides, PPS, PES, PEEK, PSU or polyester, carbon variants such as graphite, carbon black, C fibers or coke, as well as MoS2, BN or CaF2 or CaCo3. The production method consists in scattering a powder mixture of these components onto the metallic backing material and then heating it to above the softening point of the PVDF component to form the plastics overlay, the plastics overlay thereafter being rolled smooth.

Abstract: The invention relates to a piston head (10) of a piston for an internal combustion engine, in particular for diesel engines, comprising an upper part (12) having a piston crown extending substantially perpendicularly to the longitudinal axis (A) of a piston, and a lower part (14) connected with the upper part (12) and having two pin bosses (26a, b), the mutually facing sides of which are arranged at a mutual distance from one another, the pin bosses (26a, b) each comprising a pin hole (40a, 40b) extending perpendicularly to the longitudinal axis (A) of the piston and in each case aligned with the other and a cavity being formed in the junction area (28a, 28b) of the upper part (12) and the lower part (14), which cavity adjoins the piston crown (16) on the pin boss side and opens into the area between the pin bosses (26a, b).

Abstract: An overlay material is described which extends the advantages of materials containing PTFE to the extent that they may be more heavily loaded without its being necessary to resort to the use of lead or lead compounds. The overlay material, which may comprise as its matrix material PTFE or PTFE combined with other fluorothermoplastics or a matrix material not comprising PTFE, contains at least one powder-form polyaramid, the content of which, based on the total amount of PTFE or of the mixture of PTFE and the other fluorothermoplastics and the polyaramid, amounts to 10-50 vol. %. A composite multilayer material is also described which comprises an overlay consisting of an overlay material of the above type.