Abstract: A process for producing a bearing assembly includes positioning a first sleeve element in an injection mould, the injection mould having a cylindrical recess with a diameter for receiving the first sleeve element and the outside diameter of the first sleeve element being lesser than the diameter of the recess. A second sleeve element is positioned concentrically within the first sleeve element in the injection mould to define an annular chamber and elastomeric material in a molten state is injected under pressure into the annular chamber between the sleeve elements such that the outside diameter of the first sleeve element is expanded. The elastomeric material is allowed to solidify in the annular chamber between the two sleeve elements and the assembly of sleeves and elastomeric material are removed as a unit from the injection mould.

Abstract: An air-conditioning compressor comprises a shaft rotationally assembled through a casing. A pulley is attached to the compressor by a roller bearing. A torque-transmitting member engages the pulley and the shaft together. Openings are formed between arms of an external torque transmitting part and a bore of an inner ring has a radius such to enable insertion of a crimping tool into the torque-transmitting subassembly to reshape local plastic features for assembly of the torque-transmitting subassembly. The local plastic deformations of the casing interfere with a transverse face of the inner ring, wherein the local plastic deformations are positioned in axial alignment with the empty spaces in at least one relative angular position between the torque-transmitting member and the inner ring.

Abstract: A retaining element is disposed between two adjacent roller bodies of a roller bearing having an inner ring and an outer ring. The inner ring has an inner ring track with an inner radius and the outer ring has an outer ring track with an outer radius. Center points of the roller bodies are disposed along a pitch circle having a pitch circle radius. The retaining element extends radially inward from the pitch circle over at least 90% of the difference between the pitch circle radius and the inner radius and extends radially outward from the pitch circle over up to 50% of the difference between the outer radius and the pitch circle radius or vice versa.

Abstract: A valve stem seal (1) seals a valve stem (4) that is reciprocally movable in an axial direction. The valve stem seal includes a base body (8) that is connectable with a valve stem guide (6). A first seal lip (10) is resiliently positioned relative to the base body via an elastic connection (16) and seals the valve stem relative to an oil chamber (24). A second seal lip (12) is spaced in the axial direction (2) from the first seal lip and seals the valve stem relative to a gas chamber. The second seal lip is also resiliently positioned relative to the base body via the elastic connection.

Abstract: An apparatus for receiving a mold assembly having a first mold portion and a second mold portion operably connected with one another for forming parts. The apparatus includes a mold holding member and a pair of support members spaced from one another and extending from the mold holding member to a manufacturing floor. A carriage device is cooperable with the mold holding member for engaging and moving the mold assembly. A lifting mechanism of the apparatus is used for moving the carriage device relative the mold holding member to move the mold assembly to be engaged with mold holding member. The lifting mechanism and the carriage device apply forces to opposite surfaces of the mold holding member to prevent the mold holding member from deflection and distortion to eliminate offset between the first mold portion and the second mold portion thereby eliminating defective parts as said apparatus forms the parts.

Abstract: The roller screw mechanism is provided with a screw comprising an external thread, with a nut arranged around and coaxial with the said screw, the nut comprising an internal thread, and with a plurality of rollers interposed between the screw and the nut and comprising flanks interacting with the said threads. The value of the opening angle ? of the flanks of the external thread of the screw is greater than the value of the opening angle of the flanks of the rollers.

Abstract: Ball screw system comprising a screw having an external threading, a nut having an internal threading and a series of balls being engaged in the threadings to link the screw and the nut, the nut comprising ball recirculation means comprising at least one ball deflection element inserted into a through hole of the wall of the nut, from outside to inside as far as abutment means, in which the nut is equipped with a retaining means which bears on a peripheral wall of this nut, over at least a part of its length, and which bears on an external face of the deflection element, the permanent retaining means being self-held and ensuring that the deflection element is held permanently in the through hole.

Abstract: The ball screw system comprises a screw having an external threading, a nut having an internal threading and a series of balls being engaged in said threadings to link the screw and the nut, the nut comprising ball recirculation means comprising at least one ball deflection element inserted into a through hole of the wall of the nut, from outside to inside as far as abutment means, in which the nut is equipped with a retaining ring which bears on a peripheral wall of this nut, over at least a part of its length, and which bears permanently against the bottom of at least one groove formed on an external face of said deflection element and in which the retaining ring is engaged.

Abstract: A bearing assembly comprises at least two adjacently-disposed bearings. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. A bearing support retains the at least two bearings such that respective rotational axes of the at least two bearings extend in parallel. A spacer has at least two cylindrical openings configured to receive the respective cylindrical outer circumferential surfaces of the bearing outer rings such that a circumferential inner surface of each opening covers at least a portion of a width of the bearing outer ring received therein and surrounds an entire circumference of the bearing outer ring received therein. The bearing support is not fixedly connected to the spacer.

Abstract: A device comprises a rotor element which is connected to a stator element by at least one roller bearing, and a grease storage recipient for lubricating the roller bearing. The supply of grease from the grease storage recipient is controlled by a temperature-dependent expansion element.

Abstract: A vibration and condition monitoring system, with true digital signal processing based design, with very limited analog based general signal conditioning and integrated specific sensor conditioning in each module. In addition to the support for common eddy current probe systems, employing an external driver, the module also supports direct connection of an eddy current probe system to the module, due to a built-in driver and linearization functionality. Specific sensor signal conditioning is not dependent on hardware, but only on embedded software, firmware. There is full sensor input support in an I. S. environment. Not only the common sensor input types from accelerometer, velocity sensor, but also direct input for eddy current probe systems for both vibration and/or speed measurements. The module also comprises means to assess the type and correct functionality of an attached eddy current probe system (302, 303) by means of a frequency measurement and possibly an amplitude measurement.

Abstract: A sealing device for sealing a first side against a second side of a machine part, wherein the sealing device has a sealing element which contacts a counter element. At least a part of the sealing element and/or at least a part of the counter element is coated with a layer consisting of or containing fullerene-like carbon nitride (FL-CNx), wherein an inter-layer of chromium (Cr) or aluminum (Al) or molybdenum (Mo) or titanium (Ti) or tungsten (W) or a diamond-like coating (DLC) or a metal-mix diamond-like coating (Me-DLC) is arranged between the surface of the sealing element and the layer consisting of or containing fullerene-like carbon nitride and/or between the surface of the counter element and the layer consisting of or containing fullerene-like carbon nitride.

Abstract: An apparatus of the present invention is used for movable objects upwardly and downwardly relative to a fixed surface. The apparatus includes a lifting device presented by a pair of blocks movable relative one and the other. A carriage device is supported by the blocks. The carriage device is connected to object to be lifted relative the fixed surface. An actuator is connected to the blocks. As the actuator moves the blocks relative one and the other, the blocks move above the carriage device relative the fixed surface at various distances lift and lower the objects.

Abstract: A bearing comprises at least one inner ring and at least one outer ring. At least a part of the surfaces of the inner ring and/or the outer ring is coated with a layer consisting of or containing fullerene-like carbon nitride (FL-CNx), and wherein an inter-layer of chromium (Cr) or aluminum (Al) or molybdenum (Mo) or titanium (Ti) or tungsten (W) or a diamond-like coating (DLC) or a metal-mix diamond-like coating (Me-DLC) is arranged between the surface of the inner ring and/or the outer ring and the layer.

Abstract: The invention refers to a process for forming a steel component, incorporating the steps of—providing a blank having substantially the volume of the component to be formed,—heating the blank to a semi solid state with a specific liquid fraction,—forming the blank with a forging technique to a component of near net shape dimensions,—subjecting the formed, near net shape component, to a normalization combined with a hardening,—subjecting the normalized and hardened near net shape component to machining to give the component net shape.

Abstract: A coupling assembly for connecting a hub bearing unit with a constant velocity joint includes a bell member of a constant velocity joint having a tubular section disposed about a driving ring and having an end surface facing a hub member end surface and an inner circumferential surface defining a bore. The inner surface has inner splines engageable with driving ring outer splines and a tapering surface section. A sealing member is disposed between the hub and bell end surfaces and seals the space between the surfaces. An annular retainer disposed within the bell bore has a tapering outer circumferential surface engageable with the inner surface section of the bore such that the tubular section is retained between the retainer outer surface and the hub end surface, preventing disengagement of the splines and compressing the sealing member between the end surfaces. A connector connects the retainer with the hub.

Abstract: A sealing device is to be fitted at a side of a bearing unit in order to seal a gap (15) between a stationary race (11) and a rotatable race (10) of the bearing unit. The device includes a relatively rigid reinforcing insert (16) of disc-annular shape, and a gasket (17) of relatively soft rubber or elastomeric material, over-moulded or vulcanized onto the insert (16). The gasket forms two opposite peripheral sealing portions (18, 19) intended to perform a static sealing action against the rotatable race (10) and a dynamic sealing action on the stationary race (11), respectively. The insert (16) includes magnetized or magnetizable material for forming, at predetermined angular zones or fields, a sequence of alternate and/or spaced north/south poles, in order to act as an encoder.

Abstract: A bearing cage for a rolling-element bearing includes first and second axially spaced-apart side rings extending in a circumferential direction, each side ring being split in the circumferential direction along a line of separation, thereby defining mutually-opposing bordering surfaces on first and second bearing cage sections. A first projection and a corresponding first opening are disposed on or in the mutually-opposing bordering surfaces of the first and second bearing cage sections. The first projection is insertable into the first opening in the circumferential direction to fix the bearing cage sections in at least a first direction. A second projection and a corresponding second opening are disposed on or in radially-extending, mutually-opposing bordering surfaces of the first projection and first opening. The second projection and second opening fix the bearing cage sections to each other in at least two additional directions, which are each perpendicular to the first direction.

Abstract: The invention relates to a vehicle steering system having a hydraulic actuator (13) for generating a steering movement, a rotary hydraulic valve (4) for hydraulically controlling the hydraulic actuator (13), a first electronic drive (7) for actuating the hydraulic valve (4) and a first coupling element (8) for transmitting torque from the first electronic drive (7) to the hydraulic valve (4) and for preventing a transmission of torque from the hydraulic valve (4) to the first electronic drive (7).

Abstract: A sealing assembly for sealing a lubrication chamber defined at least in part by two pivotable track link portions is provided. The sealing assembly includes a sealing ring having an annular sealing edge sealingly abutting on an end surface of one of the portions and an elastic ring permanently abutting on the other of the portions and applying pressure to the sealing ring, the elastic ring having an axially-projecting, hollow cylinder-like sealing lip, which radially encloses the sealing ring in the region of a sealing edge and sealingly abuts on the end surface when two track link portions axially shift towards each other. A support ring is disposed between the sealing ring and the elastic ring.