Abstract: A bushing collar assembly on a vehicle includes a subframe formed of a first material and a bushing collar formed of a second material. The subframe has an engagement face. The bushing collar has a sleeve shaped main body defining axial end faces. At least one of the axial end faces has a plurality of spaced apart nubs disposed thereon that are configured to deform and fully embed into the engagement face of the subframe upon application of a predetermined compressive force.

Abstract: An oil-impregnated sintered bearing comprises a bearing hole. In the bearing, sliding surfaces supporting an outer circumferential surface of a shaft and an oil supply surface whose diameter is larger than that of the sliding surfaces are formed on an inner circumferential surface of the bearing hole into which the shaft is inserted. The sliding surfaces and the oil supply surfaces are adjacent to each other in the axial direction of the bearing hole. A height gap “d1” between the sliding surfaces and the oil supply surface is not less than 0.01% and not more than 15% of an inner diameter of the sliding surfaces. A surface opening percentage of the sliding surfaces is not higher than 10%. A surface opening percentage of the oil supply surface is higher than 10%. An average circle-equivalent diameter of opening parts of pores on the sliding surfaces is not larger than 20 ?m.

Abstract: A method of determining pull-out of a cutting tool mounted in a rotatable tool holder includes the steps of rotating the tool holder and thus the cutting tool, machining a work piece with the rotating cutting tool, measuring an axial position of the cutting tool in the tool holder during machining by a position sensor in the tool holder, calculating an axial displacement from an initial position of the cutting tool by the measured axial position, and determining pull-out of the cutting tool when the axial displacement exceeds a threshold value. A rotatable tool holder for a cutting tool, a machine tool system including a rotatable tool holder and use of the tool holder and machine tool system is also provided.

Abstract: A method for producing an internally structured slide bearing bushing involves the following steps: a) providing a slide bearing bushing with at least one bearing region which is formed as a hollow cylinder with an internal surface and which has an external diameter and an internal diameter, b) providing an external tool with a through-opening, c) providing an internal tool which has an integral cylindrical operating region with an external surface with a structure, d) inserting the internal tool into the bearing region of the slide bearing bushing, e) introducing the slide bearing bushing and the internal tool into the conical widened portion of the through-opening of the external tool, f) pressing the slide bearing bushing into the through-opening of the external tool, g) removing the slide bearing bushing from the through-opening of the external tool, and h) radially widening the slide bearing bushing.

Abstract: The invention relates to a bearing arrangement (12) for a part to be mounted such that the part rotates about an axis, such as a cylinder, roller, drum or shaft, comprising at least one rolling bearing (23), which is accommodated in a bearing housing (27), which is mounted movably in an arrangement housing (29) in a linearly movable manner by at least one linear guide (28), and also including an actuation device (1) for effecting a linear shifting movement of the bearing housing perpendicularly to the axis between a rest position and a working position. The actuation device includes at least one prestressed spring element, which presses the bearing housing into the working position, and at least one hydraulic or pneumatic device for generating a restoring force acting counter to the spring element for moving the bearing housing into the rest position.

Abstract: A chain or belt tensioning roller or winder device having a rolling bearing, the rolling bearing comprising an inner ring, an outer ring and at least one row of rolling elements mounted between the rings. The pulley is overmolded onto the outer ring and with a fixing screw axially immobilized with respect to the rolling bearing. The device comprises a sleeve overmolded inside the bore of the inner ring and provided with a through-bore for mounting the fixing screw. The sleeve is provided with means of axially retaining the fixing screw inside the through-bore of the sleeve.

Abstract: A spindle repair kit including a pair of alignment mandrels positionable in a respective spindle bore of a steering spindle. An alignment rod is operative to retain the mandrels in their respective spindle bores. The kit can also include a first clamp member and a second clamp member, each being positionable between the spindle bores. The kit includes a drill fixture including a drill mounting surface and a bearing fixture including a bearing aperture sized to receive the alignment rod. Fasteners clamp the drill fixture and first clamp member to the first spindle bore and clamp the bearing holder and second clamp member to the second spindle bore. The kit includes an arbor connectable to a drill and a reamer, wherein the arbor is sized to position the reamer in the first spindle bore.

Abstract: A halved sliding bearing (1) has a recess (7) formed in a circumferential direction from an outer peripheral edge of a mating surface (5) of a semi-cylindrical bearing main body (3). To prevent formation of a burr to an inside of the recess (7) during formation of the mating surface (5), an entirety of at least one edge segment of a peripheral edge of the recess (7) opening on a circumferential end surface of a semi-cylindrical member (23) as an unprocessed body of the bearing main body (3), the at least one edge segment intersecting with an axial direction of the member (23), is chamfered. The mating surface is formed by cutting the circumferential end surface such that a cutting blade (31) firstly reaches the chamfered edge in the peripheral edge of the recess (7). Thus, the bearing main body is produced.

Abstract: A thrust dynamic pressure pattern is marked on a rotating member or fixed member set on a rest table. A pressure for marking is applied to a member to be marked in a cycle of applying and releasing the pressure, and a supplemental force for keeping the member to be marked, still is separately applied. According to the present embodiment, a rotating device can be provided that narrows down a bearing gap and improves the efficiency of raking up a lubricant so as to increase the dynamic pressure by reducing the deformation of the shape of the protrusions of a thrust dynamic pressure pattern and the variation in the height of the protrusions when forming the thrust dynamic pressure pattern in a method of producing a rotating device.

Abstract: A screw device manufacturing method ensures high productivity and adequate nut strength. The disclosed screw shaft manufacturing method includes: a groove forming step of forming a loaded ball rolling groove in a flat plate; and a nut forming step of bending the flat plate into a ring to form a nut. As the groove forming step of forming of the loaded ball rolling in the flat plate is followed by the nut forming step of bending the flat plate into a ring, sufficient strength of the nut can be easily achieved. Besides, a high compression stress is left in the loaded ball rolling groove in the inner surface of the nut.

Abstract: The invention relates to a method of producing a plain bearing bush or bearing shell of varying width from a flat strip material, which comprises the following steps: incorporating grooves in the flat strip material along the bush or bearing-shell contour, rolling or bending the flat strip material into a bush or bearing-shell shape, mechanical severing of the excess marginal regions along the grooves, obtaining a finished plain bearing bush or bearing shell which has the final shape. In this case, the invention is based on the idea of producing trapezoidal or stepped bushes as “shaped bushes” from strip material. The starting point in this case may be a strip of rectangular cross section, which is normally used for cylindrical bushes. The grooves can be incorporated in the flat strip material.

Abstract: A cylindrical bearing member, which can hold lubricating oil in blind grooves as oil reservoirs for a long period of time to exhibit a lubricating function sufficiently, the blind grooves being efficiently mass-produced on the inside of the cylindrical member at low cost. The cylindrical bearing member has an inner circumferential surface having a plurality of blind grooves and is formed as a hollow open-ended cylindrical member with a bottom from a circular column-shaped crude material or blank. The blank includes a tapered inner circumferential surface at its open end. A groove forming die pin including groove forming protrusions is pushed from the open end towards the bottom to obtain a cylindrical member in which a plurality of grooves are formed on the inner surface.

Abstract: The invention relates to a method for the production of a flange sleeve especially for a sliding bearing. A strip of material is cut into lengths corresponding to the later periphery of the flange sleeve. The strip section thus arising is rolled to form a hollow cylindrical sleeve with an open butt joint and a collar is placed around one or two sides. The open butt joint is expanded in the region of the collar to form a V-shaped slit. One or several recesses are made in the region of the later open butt joint on one or two of the longitudinal edges of the strip section.

Abstract: This invention relates to a vibration isolating bushing, for example, built into a suspension system, an inside diameter of one edge (4) of an inner cylinder (1) being made larger than that of the other edge (6). The outside diameter of the thinner edge (4) is enlarged by applying pressure with a pressure forming jig (26) to the thicker edge surface (25), with the thinner edge surface (20) of the inner cylinder (1) abutted on a base (23). After completion of enlargement of the outside diameter of the thinner edge (4), the outside diameter of the thicker edge (6) is enlarged by further pressure with the pressure forming jig (26), this process thus capable of enlarging the outside diameter of both edges (4), (6) with one continuous working step.

Abstract: A flanged bush for plain bearings having at least one flange formed thereon having axially facing inner and outer surfaces and including at least one metallic layer. The flange includes material-displacing recesses impressed axially into said flange in said metallic layer at at least two points distributed over said flange in a circumferential direction.

Abstract: The invention relates to a plain bearing shell for supporting an engine crankshaft or camshaft, or as a connecting rod bearing shell of an engine, the plain bearing shell comprises a radially outward protruding holding projection in the region of the separating surface of the plain bearing shell. In order to simplify handling of the plain bearing shell during assembly, the bearing shell is formed in such a way that the holding projection merges continuously into one separating surface of the plain bearing shell, and is formed by a stamping tool from the outside of the plain bearing shell by an approach in which, in the region of the separating surface, the stamping tool compressively deforms the material on the outside of the plain bearing shell, essentially tangentially relative to the plain bearing shell and toward the separating surface, while a counter-holding mechanism is applied to the separating surface, to which mechanism the formed material of the holding projection extends.

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: An inner metal link bushing is formed by providing flat steel stock having a chamfered edge disposed at an angle relative to the surfaces such that, when the flat stock is reshaped to a tubular formation, the edges forming a longitudinal seam will initially contact one another at the outer surfaces thereof leaving slight gap between such edges in the area adjacent the inner surface. The tubular formation is placed in a die having a rigid interior wall surface in close relationship with the outer surface of the tubular formation and a mandrel is positioned inside the tubular formation in slightly spaced relationship therewith. Presses impose compressive forces on the opposing ends of the tubular formation sufficient to squeeze the ends of the tubular formation toward one another and to cause the inner and outer surfaces of the tubular formation to be homogeneously plastically deformed into firm contact respectively with the inner surface of the partible die and the outer surface of the mandrel.

Abstract: A lined and flanged bush and method of manufacturing the same comprising: providing a liner having an aperture; locating the aperture in the liner around the spigot such that the liner lies on the surface; and stamping out the blank around the spigot to provide a lined and flanged bush.

Abstract: A small-bored cylindrical bearing member which can enhance the maintainability for a lubricating oil therein. The member has blind grooves in a seamless cylindrical central body portion of the interior hollow cylindrical surface of the bearing member. A method of manufacturing the cylindrical bearing member having blind grooves with blocked-in end portions extending in the longitudinal direction of the cylindrical portion and spaced from the ends of the member. The grooves can be easily formed in the central body portion of the inner circumferential cylindrical surface of the central body portion with the blocked-in ends spaced from the opposite ends of the seamless bearing member. The seamless member is first formed with a tapered or flared portion at one open end which is later narrowed into a round cylindrical form. Before narrowing the tapered or flared portion, the blind grooves are formed by a groove punch pushed through the open end into the central body cylindrical portion.

Abstract: A lead-free bearing includes a bronze matrix powder metal bearing layer bonded to a steel backing a fully densified. The bearing material has about 8 to 12% by weight tin, about 1 to less than 5% by weight bismuth, and about 0.03 to 0.08% by weight phosphorus, with the balance being copper. The tin is soluable in the copper to yield the bronze matrix, and the bismuth exists as finely dispersed, undissolved islands through the matrix. Such bearings exhibit physical properties comparable to or better than those of traditional bronze-lead bearings and improved wear in seizure properties.

Abstract: By press-fitting a cylindrical blank into a die with one of a pair of punches, and at the same time press-fitting small diameter end portions and tapered portions of the pair of punches into both ends of the cylindrical blank while restraining both end surfaces of the blank with cylindrical members movable on the outsides of the punches, the external circumferential surface of the blank is finish molded to the required diameter by the internal circumferential surface of the die and, at the same time, tapered surfaces are formed on the inner circumferential surface in both ends of the blank. The process produces a bushing with its internal surfaces accurately coaxial, and with the external surface accurately formed to the required diameter.

Abstract: A method of forming inner flanges in a bushing comprises steps of (a) extruding a bushing into an extruding die, (b) cutting an initial upward flange in the bushing, (c) shaping the initial upward flange into a final inner flange, and (d) repeating steps (a) to (c) to form additional inner flanges.

Abstract: The invention relates to a method for the production of a flange sleeve (10) especially for a sliding bearing. A strip of material is cut into lengths corresponding to the later periphery of the flange sleeve. The strip section (14) thus arising is rolled to form a hollow cylindrical sleeve with an open butt joint (12) and a collar (20) is placed around one or two sides. The open butt joint is expanded in the region of the collar to form a V-shaped slit. One or several recesses (18a, 18b) are made in the region of the later open butt joint (12) on one or two of the longitudinal edges (16) of the strip section.

Abstract: Disclosed is a flange sleeve (10) comprising at least one flange (3) formed thereon, having no gap at the joint or having a controllably adjusted width of the gap at the joint. The flange (13) has two crowding recesses (16, 16′, 16″, 16′″) 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 said flange sleeves (10), 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, said recesses preferably being made by bending the edge of the sleeve. The invention also relates to a bending tool and a bending device.

Abstract: A wrapped plain bearing bush having a bush width which varies in the peripheral direction. The bush is characterized in that it is wrapped from a strip-shaped band section which is provided with a variable over the length of the section while still in its flat state and which is wrapped in such a way that the wrapped bush does not need to be subjected to any further cutting of the width; but, instead, has its definitive, variable bush width after wrapping on the bush mold.

Abstract: The invention concerns a bending device (10) comprising two shaping dies (12, 14) with shaping chambers (22, 24) in order to round a sheet bar (26) about a core (16). The peripheral lengths of the two shaping chambers (22, 24) are each longer than half the bushing circumference. During a pre-shaping step, the core (16) penetrates a first chamber (22) by a depth which is greater than the bushing radius. The sheet bar (26) is thus shaped in the form of a U. In an intermediate shaping stage, an auxiliary core (18) is placed on the core (16) such that, as the second shaping die (14) moves downwards, only the end of the U-legs of the sheet bar blank (26) are shaped arcuately. When the auxiliary core (18) and part (20) of the first shaping die (12) have been removed, the final bushing shaping process occurs, in which the second shaping die (14) likewise travels over the center of the bushing. The three-stage bending method enables a bushing to be rounded highly accurately and carefully.