Abstract: A bearing bush that can be installed without any auxiliary components and ensures a secure fit has a backing which comprises at least one layer, an overlay (4), on its inner surface and at least one flange (6,6a,6b) in the form of a circumferential closed bead provided at a distance from the bush ends. The bearing bush is suitable, inter alia, for flexible joints and pedal bearing systems. The method of producing such a bush takes as its starting point a prefabricated bearing bush (1), the inner surface of the backing (3) of which is exposed in at least one area (5,5a,5b) spaced from the bush ends. An internal mandrel is inserted into the bearing bush (1) and the bearing bush is held around its outer surface, at least one gap (23) being left opposite to the exposed area (5,5a,5b). The bearing bush is then compressed in the axial direction, the material is thereby displaced into the gap (23,23′) to form the flange (6).

Abstract: A bearing shell with at least one retaining cam which, when looking down on the partial surface of the bearing shell, has a rectangular external contour line and an indentation on the inside, the indentation being at its largest around the center (M) of the cam. The indentation, when looking down on the partial surface, has a curved contour line. The cam is made by being either hammered or pressed using a rounded blade.

Abstract: Iron oxide functions as a wear- and cavitation-inhibiting additive in the plastic sliding layer(s) of composite bearings for oil-lubricated applications. The sliding layers predominantly consist of thermoplastic fluoropolymers. The addition of iron oxide to PTFE-based materials reduces the destruction of the sliding surface owing to the appearance of cavitation if the materials are used in the presence of oil.

Abstract: A sliding bearing material contains a matrix material and an antifriction material composed of at least one fluorinated plastic material and fillers. The antifriction material contains as fillers 5 to 48% by volume boron nitride and 2 to 45% by volume of at least one metal compound with a stratified structure, the proportion of fluorinated thermoplastic material amounting to at least 50 to 85% by volume. The fluorinated thermoplastic material is a PTFE or PTFE with additives; M.sub.o S.sub.2, tungsten, sulphide, titanium sulphide or titanium iodide may be used as metal compounds. The matrix material may be a sintered bronze into which the antifriction material is incorporated or a thermoplastic material in which the antifriction material is finely distributed. The proportion of plastic matrix material in the whole sliding bearing material lies at 60 to 95% by volume.

Abstract: A laminated composite material, and a method of improving the surface hardness of laminated composite materials, wherein selected regions of the carrier material of the laminated composite system are treated with high-energy beams, and the temperature control is designed in such a manner that the rays penetrate into a maximum a 0.1-fold the entire thickness of the carrier material. The temperature increase in the region of the sliding material is a maximum of 80% of the melting temperature of the lowest melting constituent of said material. The laminated composite material with a rear steel substrate surface can be post-hardened. The steel substrate has at least in one part of the surface facing away from the function layer a level of hardness increased by a factor of 1.5 or more than at a depth which corresponds substantially to 0.1-fold of the thickness of the steel substrate.

Abstract: Plain bearing elements comprise at least one single-layer metallic bearing material (4) having a sliding surface (6) with lubricating oil pockets (10). The depth (T) of the open oil pockets (10) is 0.03 mm to 0.3 mm, and the ratio of the pocket area to the pocket depth is 10 to 40 mm. The plain bearing elements exhibit superior running qualities and properties. The depth of the oil pockets (10) may be adapted to the service viscosity of the lubricating oil. The oil pockets (10) in the same plain bearing element may also have varying depths (T) and be provided only in predetermined regions of the plain bearing element.

Abstract: The invention concerns a method of producing layered materials for sliding bearings and an electroplating bath for carrying out this method. According to the method, an electroplating bath with a non-ionic wetting agent and a benzene derivative is used for depositing a binary layer on a bronze layer on which the lead- or tin-based binary layer and a molybdenum-based initial layer are deposited galvanically in succession. When the binary layer has been deposited and before the initial layer is deposited, at least one surface layer of the binary layer is anodically activated. The layered material comprises a steel support shell (1) and a cast leaded bronze (2) to which an intermediate layer (13) is applied galvanically. When the layer (3) has been applied galvanically, the surface region (5) is altered by anodic activation, whereupon the molybdenum oxide layer (4) is applied galvanically.

Abstract: A laminated material for sliding members having improved resistance to abrasion, hardness and wear resistance. The laminated material has a support structure and a sliding layer with electrodeposited matrix material, hard particles being embedded into the matrix material, having a diameter of <2 .mu.m and being provided in the form of individual particles distributed in a completely homogenous manner with a proportion of 2 to 20% by volume in the matrix material. The process to produce sliding members provides that a ternary electroplating bath free of fluoro-borate and without brighteners, using non-ionic surfactants and free alkyl sulphonic acids, and a grain refining agent and a fatty acid polyglycol ester is used. The hard particles are kept in the electroplating bath during electroplating at a steady concentration.

Abstract: A plain bearing shell (2a', 2b') exhibits a reduction in oil carbon formation on the plain bearing backing and an improvement in plain bearing interference fit during operation through a decrease in the relative movement between bearing backing and receiving bore. The ratio of the effective wall thickness W.sub.eff to the external bearing diameter D is defined by 0.012.ltoreq.W.sub.eff /D.ltoreq.0.02. The ratio of the installation free spread S to the external bearing diameter D is defined by: 0.025.ltoreq.S/D .ltoreq.0.05.

Abstract: In accordance with the method according to the invention, for the production of the plastics overlay, first of all a paste is made of a plastics dispersion and fillers. This paste is free of organic solvents and is applied to a sintered porous metal layer. The multilayer material thus produced is then sintered. Since the use of organic solvents is dispensed with, health risks and the risk of fire are reduced. Moreover, the composite materials produced according to the invention exhibit excellent cavitation resistance. In addition to conventional lubricant-free applications, such as bearings, these composite materials may consequently be used in particular in gear pumps and shock absorbers.

Abstract: In order to take account of dimensional variations in crankcases and connecting rods, the lower bearing shell (9) in the unmounted state is formed such that the outer contour is in the shape of an arc having a radius r.sub.a and the inner contour has the shape of a semi-ellipse having semi-axes a.sub.i and b.sub.i. The bearing semi-axis a.sub.i passes through the vertex (19) of the lower bearing shell (9). When the bearing is mounted, the contour of the upper bearing shell (8) remains unchanged while the lower bearing shell (9) is slightly deformed such that its outer contour assumes the shape of a semi-ellipse having semi-axes a.sub.a and b.sub.a. The short semi-axis b.sub.a passes through the vertex (19) of the lower bearing shell (9).

Abstract: A sliding element has a bearing metallic layer made of aluminum or an aluminum alloy which bears on its side facing the sliding surface a galvanically produced tin layer bonded to the bearing metallic layer by a very thin alkaline, halogen-free layer of zinc, copper, nickel and iron immersion deposited on the bearing metallic layer. To produce such sliding element, a highly-alkaline immersion bath is used containing salts of zinc, nickel, copper and iron mainly cyanide-based. After the immersion treatment, the sliding element blank is rinsed with considerably carbonic acid-free deionized water. During a first tinning step, the sliding element is treated in a bath at a temperature between 20.degree. and 26.degree. C. with a current intensity from 2 to 3 amperes/dm.sup.2 and for a duration of exposure of at least one minute.

Abstract: A plain bearing material includes a matrix of thermoplastic polymer which contains as inclusions additives improving antifriction properties. In the matrix are contained as additives PTFE and chalk, both PTFE and chalk being in the form of a powder. A composite multilayer material with such a plain bearing material includes a metallic backing on which a rough base is sintered or sprayed on. On this rough base is deposited the bearing metal material with a matrix material in which are included the additives.

Abstract: The invention relates to a wrapped bearing bush of elastic material as a bearing for a journal or a shaft for pressing into a housing bore. The invention also relates to a journal or shaft connection comprising a first and a second component, wherein the first component carries a bearing bush and the second component is connected to a journal or shaft mounted in the bearing bush.

Abstract: In a composite plain thrust journal bearing is provided, in the inner rim of the thrust bearing part, at least one retaining lug (5) with which is associated at least one splay finger (6). In the rim area (7) of the journal bearing part are provided for the retaining lug a recess (13) and a recess (18) for a splay finger which is formed, at least in an end region, into a receiving slot (8), which is axially delimited by a hook-shaped projection (9). When the thrust bearing part (2) is positioned on the journal bearing part (1), the retaining lug (5) is engaged into the recess (13) and the splay finger into the recess (18) for a splay finger, and then the splay finger (6) is, under permanent deformation introduced into the receiving slot (8) behind the hook-shaped projection (9). This method of attachment offers defined limited mutual movability of the journal bearing part (3) and the thrust bearing part (2) while ensuring reliable connection of the two parts to each other.

Abstract: Highly wear-resistant sliding bearings with good sliding properties are difficult to manufacture by electrochemical deposition of the sliding alloy, because the corresponding electrolyte solutions are unstable. Conventional sliding alloys are also too hard for a run-in period and wear too rapidly when used in accordance with specifications. The new sliding layer is simple to manufacture and has an extremely favorable run-in period. The soft constituent of the sliding layer is present in a concentration which decreases along a concentration gradient perpendicular to the effective surface of the sliding layer as the distance from the effective surface increases. The sliding layer is particularly suitable for use as a lead-tin-copper alloy in a multilayered bearing.

Abstract: A lacquer coating is applied to a laminated metal composite forming a sliding element such as a plane bearing and has particles of solid lubricants incorporated therein to form islets of greater thicknesses than the surrounding film and which serve as lubricant trapping surface formations.

Abstract: A compound journal and thrust plain bearing comprises a half-liner-shaped or bush-shaped journal bearing part and a part-ring-shaped thrust bearing part or a set of part-ring-shaped thrust bearing parts attached at one or both ends thereof, while every thrust bearing part comprises on its inner peripheral rim a plurality of inwardly extending retaining projections which are angularly spaced from each other and which are inserted into a recess provided in the region of the arcuate or circular margin of the journal bearing part.