Abstract: A bearing assembly includes a bearing for supporting a first machine part relative to a second machine part, a seal assembly configured to seal a first space in a region of the bearing relative to a second space, a pressure equalization passage fluidically connecting the first space and the second space, a valve configured to open and close the pressure equalization passage, and a controller configured to control the valve.

Abstract: A bearing assembly for a traction motor of a railway vehicle includes at least one rolling-element bearing having an inner ring and an outer ring. At least one row of rolling elements is disposed between the inner ring and the outer ring. A sealing assembly is disposed in at least one of the axial end portions of the rolling-element bearing. The sealing assembly includes a first sealing region disposed adjacent to the bearing rings, and a second sealing region spaced farther from the bearing rings than the first seal region. The first sealing region includes a lip seal, and the second sealing region includes a labyrinth seal. The internal volume surrounding the rolling elements located between the bearing rings is in fluid communication with the atmosphere.

Abstract: An annular seal for a low friction bonded piston seal is provided. The annular seal having a central axis and including an annular seal body symmetrically positioned about the central axis. The annular seal is integrally molded to the body and provides a lower seal lip body, and a top seal lip. The top seal lip including a first radial lip thickness T1 and a second radial lip thickness T2. A ratio between second radial lip thickness T2 to first radial lip thickness T1 is less than 1.00. The annular seal includes a radial lip height H, and a radial lip overall pressure received thickness T3. A ratio of radial lip height H to second radial lip thickness T2 is greater than or equal to 0.65. The radial lip overall pressure received thickness T3 is less than or equal to 0.8 mm. The first radial lip thickness T1 is less than or equal to 0.7 mm.

Abstract: The invention provides a building block for a mechanical construction. The invention further provides a bearing and a method of producing the building block. The building block provides a first printed material printed via an additive manufacturing process on or at least partially embedded in a second material. The first printed material is printed in a pattern configured and constructed for cooperating with a sensor for providing position information of the building block relative to the sensor. The sensor may be a magnetic sensor or an optical sensor. The first printed material may include magnetic particles. The method of producing the building block may include a step of adding the first printed material to the second material via the additive manufacturing process under the influence of a predefined magnetic field.

Abstract: The invention concerns a suspension thrust bearing for use with a suspension spring in an automotive suspension strut. The suspension thrust bearing provides a bearing with an annular upper part and a annular lower part in relative rotation one to the other, a lower support surface being provided by the lower part that axially supports an upper end of a suspension spring by the intermediate of a damping device made from resilient material. The resilient material of the damping device is molten in its preformed state with gas. After being molded, the molten material of the damping device provides an outer skinny layer and an inner foam body, the density of the outer skinny layer being strictly greater than the density of the inner foam body.

Abstract: A lubricating system for a bearing includes a lubricant supplying system having a first pumping device configured to introduce a first quantity of lubricant into the bearing, a lubricant disposal system including a second pumping device configured to remove a second quantity of lubricant from the bearing, and a controlling device configured to activate the first pumping device and the second pumping device interdependently with each other.

Abstract: The method includes providing a generally annular sealing element, the sealing element having an inner circumferential sealing surface configured to engage with a relatively movable member, and an outer casing blank including one of: a generally axially-extending section and a generally radially-extending section extending inwardly from the axially-extending section; and a generally annular disk and a generally cylindrical tube. The method may also include determining a desired diameter for a generally annular outer casing, removing a portion of the provided one of the radially-extending section and the annular disk, such that a diameter of the outer casing blank is about equal to the desired diameter, and coupling the sealing element to the outer casing blank after removing the portion of the provided one of the radially-extending section and the disk.

Abstract: A device for detecting the axial position of a rotor shaft of a rotary machine having a stator and a rotor is provided. The detecting device includes a sensor stator ring, secured to the stator, made from ferromagnetic material, facing the shoulder of one end of the hollow or not hollow rotor shaft and arranged so as to leave an axial airgap with the one end of the rotor shaft. The sensor stator ring having at least one annular slot receiving an annular induction coil. The rotor shaft is made from solid magnetic steel, an outer end of the rotor shaft acts as a target surface whose axial position is to be measured by the sensor stator ring.

Abstract: A device for detecting a pressure change in a tire includes a first temperature sensor located outside the tire being configured to produce a first temperature signal indicative of a first temperature, an input apparatus configured to receive the first temperature signal from the first temperatures sensor, and to receive a second temperature signal from a second temperature sensor being indicative of a second temperature, and to receive a tire pressure signal from a tire pressure sensor being indicative of a tire pressure of the tire, and a processor configured to output an evaluation signal including information about a change of tire pressure based on the pressure signal and based on the first temperature signal and the second temperature signal. The processor is configured to evaluate the pressure signal only if a temperature difference between the first temperature and the second temperature is smaller than a predefined limit value.

Abstract: A friction-enhancing lacquer contains a binder and hard material particles. The hard material particles include a titanium-boron compound or consist essentially of a titanium-boron compound, such as titanium diboride. The friction-enhancing lacquer is applied to the surface of a machine part, such as a bearing inner ring, outer ring or other bearing component, in order to increase its coefficient of friction and minimize or prevent slippage relative to another machine part clamped thereto. Also a bearing component coated with such a lacquer.

Abstract: The present invention relates to a linear electro-mechanical actuator for transferring a rotational motion to a linear motion. The actuator provides a piston being at least partly arranged inside a housing. The actuator further provides a transmission module including a rotating portion having a load-carrying surface and a non-rotating portion being operatively engageable to each other. The transmission module is adapted to transfer a rotational motion of the rotating portion to a linear motion of the piston via the non-rotating portion. The actuator further provides a lubricating member having a porous polymeric matrix and a lubricating material, the load-carrying member being arranged adjacent to the transmission module. Thereby, the actuator allows for lubrication of at least a portion of the load-carrying surface of the rotating portion upon movement of the rotating portion. The linear electro-mechanical actuator may not require, or may at least minimize, the need of relubrication.

Abstract: The invention concerns a cam follower including a tappet having a cylindrical outer surface centered on a longitudinal axis (Y1) and adapted to slide in a housing surrounding the tappet, a pin extending between two opposite ends along a transverse axis (X1) perpendicular to the longitudinal axis (Y1), a roller element movable in rotation relative to the pin around the transverse axis (X1) and adapted to roll on a cam, and an antirotation member for preventing a rotation of the tappet around the longitudinal axis (Y1) in the housing. According to the invention, the antirotation member is one of overmolded onto the tappet and the tappet is overmolded onto the antirotation member. The invention also concerns an injection pump for a motor vehicle, each having a cam follower. The invention also concerns a method for manufacturing a cam follower.

Abstract: A temperature compensation ring configured to compensate for a temperature-dependent distance change between two components includes a base body made from an elastic material, and at least a section of at least one surface of the base body is configured to reduce a friction in the axial direction between the temperature compensation ring and an abutment surface, by, for example, being coated with a friction reducing coating and/or by including one or more grooves for receiving a lubricant.

Abstract: The invention relates to a pulley device for tensioner or idler for a belt or a chain having a pulley, a bearing, a spacer supporting the bearing and including a through bore, a fastening screw extending in the bore, and an axial retention member for the screw, the axial retention member being fixed to the spacer and providing a retention member that cooperates with the screw.

Abstract: A plain bearing which may have superior operational characteristics, such as the ability to work in high temperature environments with aluminum housings, or which may have the ability to support an axial load, or which may have an outer ring formed entirely of polymer or lubricant impregnated polymer, and/or components thereof.

Abstract: A structural element has at least one slide layer and is formed to slide via the at least one slide layer along at least one line of motion. The slide layer includes a fiber-reinforced material containing at least one multi-component fiber that includes at least one first component, which is disposed in or on at least one first structure, and at least one second component, which is disposed in or on at least one second structure. The first and second structures are materially-bonded together and are disposed parallel to each other in a main extension direction of the at least one multi-component fiber. Either the first component or the second component is polytetrafluoroethylene. The structural element may be formed, e.g., as a bearing ring, a slide bearing bushing, a linear guide or a spherical bearing ring.

Abstract: A roller of a roller bearing providing a hollow bore in which a load cell is arranged, for measuring a radial load acting on the roller. The load cell is mounted to the roller bore in a non-fixed manner and includes one or more cantilever beams that extend in an axial direction of the roller. A contact element is provided on each cantilever beam. Each element further bears against a surface of the roller bore. At least one sensor is provided on each cantilever beam for measuring bending thereof, due to deflection of the beam in a radial direction perpendicular to the axial direction.

Abstract: The cam follower roller device provides a tappet body, a pin and a roller mounted on the pin. The tappet body provides holes for mounting pin ends of the pin on the tappet body. The device further provides one deformable ring disposed between each pin end of the pin and an inner wall of the associated hole of the tappet body.

Abstract: The valve operator assembly is provided for a valve and includes a housing, an input member rotatably mounted, and a transmission mechanism including a translating element and a rotating element connected to the input member, said transmission mechanism being adapted to convert applied rotation of the input member into axial translation of said translating element. The assembly further includes at least one locking mechanism radially interposed between the transmission mechanism and the housing, and provided with friction means in radial contact with the housing, and with at least one pre-stressing element acting on said friction means to maintain said radial contact. The pre-stressing element and the friction means cooperate together to lock the transmission mechanism with the housing in a static position of said assembly.

Abstract: A tensioner for preloading a bearing, the bearing including a first bearing ring and a second bearing ring and being configured to transmit a preload force in a radial direction and/or in an axial direction between the first bearing ring and the second bearing ring, the tensioner including a component coupled to the first bearing ring, a support element for supporting the component relative to the second bearing ring such that a closed force flow arises from the first bearing ring via the component and the support element to the second bearing ring, and a sleeve disposed in an axially displaceable manner between the first bearing ring and the component, the sleeve being configured to change the preload force in response to an axial displacement of the sleeve with respect to the component.