Abstract: A residual quantity sensor includes a conductive member having a first insulated wire and a second insulated wire. The first insulated wire and the second insulated wire have bared portions at an end thereof to provide a first electrode and a second electrode. The first electrode and the second electrode provide an electrode section of the conductive member. The first insulated wire and the second insulated wire are twisted to each other at a part thereof to provide a twisted section of the conductive member. The conductive member is to be installed to a tank such that the electrode section is disposed in a tank body, and the twisted section is extended to an outside of the tank through a vent hole of a tank cap attached to the tank body.

Abstract: A liquid level sensing module for sensing a high liquid level in a sump container rising comprises a first liquid-actuated switch which provides a first output signal upon the liquid level reaching a first level, and a second liquid-actuated switch which provides a second output signal upon the liquid level reaching a second level above the first. A delay circuit delays the first output signal by a period if time sufficient for the liquid to rise from the first switch level to the second switch level to produce a delayed output signal. An alarm circuit produces a fault signal indicating a switch module fault upon the occurrence of the second output signal.

Abstract: A sensor includes a sensor element; a circuit board having an element attachment surface on which the sensor element is mounted; a casing member for housing the circuit board, the casing member having a measurement chamber which faces the sensor element and communicates with the target atmosphere through a gas inlet; an annular elastic seal member which is interposed between the element attachment surface and the casing member in such a manner that the elastic seal member is in contact with the element attachment surface. The elastic seal member is made of foamed rubber and has an end surface flat portion which faces the casing member and another end surface flat portion which faces the element attachment. The elastic seal member is interposed between the element attachment surface and the casing member such that the elastic seal member is compressed between the flat portions of the end surfaces.

Abstract: A sensor (10) having a housing (12) is provided which has a main housing part (14) and a connection part (16) having a connection (18, 20, 22), wherein the connection part (16) is movably attached at the main housing part (14), in such a way that the connection (18, 20, 22) is selectively accessible from two sides of the housing (12). In this connection the connection part (16) has at least three connections (18, 20, 22) and is movable at the main housing part (14) in such a way that the at least three connections (18, 20, 22) are selectively accessible from two sides of the housing (12).

Abstract: A physical quantity sensor includes a base on which an IC electrically connected to a gyro element is arranged and a wire group arranged on the base. The base includes a first outer edge and a second outer edge that crosses the first outer edge. The wire group includes a CLK wire arranged along the first outer edge and including an internal terminal connected to the IC and an S1 wire arranged along the second outer edge and including an internal terminal connected to the IC. A detection signal of the gyro element is input to the IC via the S1 wire.

Abstract: A functional element includes a driving portion, a first mass portion which is vibrated along the first direction, a first connection portion which is connected to the first mass portion and can perform a first movement in which the first connection portion contracts and extends along the first direction, a second connection portion which is connected to the first connection portion, extends in a second direction intersecting the first direction, and can perform a second movement in which the second connection portion rotates with the second direction as the axis, and a second mass portion which is connected to the second connection portion.

Abstract: A micro-electro-mechanical device with a closed feed-back damping loop is provided. Displacement in the mechanical resonator is opposed with a damping force determined by the closed feed-back loop that comprises a filter with a peaked frequency response, and associated phase adjustment. An oscillation-free configuration that allows high signal amplification is achieved.

Abstract: A capacitance type physical quantity sensor including a movable electrode formed in a weight part, and a fixed electrode facing the movable electrode is provided. A first movable sensing electrode and a first fixed sensing electrode face each other in a first y direction. A second movable sensing electrode and a second fixed sensing electrode face each other in a second y direction. A first movable damping electrode is located in the middle between two first fixed damping electrodes, faces one of the first fixed damping electrodes in the first y direction and faces the other of the first fixed damping electrodes in the second y direction. A plurality of the first movable damping electrodes are located point-symmetrically with respect to the center of the weight part or line-symmetrically with respect to a center line passing the center in the y direction.

Abstract: A micromechanical Z-sensor, including a rocker having trough structures which is twistably supported with the aid of a spring device, the rocker having a mass distribution which is asymmetric with respect to the spring device, first electrodes situated above the trough structure, and second electrodes situated below the rocker, and a catch device including at least one spring element against which a stop element which is anchored to a substrate is able to strike, at least two catch devices which are spatially separated from each other being provided per rocker arm of the rocker.

Abstract: The present invention relates to methods and systems for condition monitoring of and/or fault diagnostics in solid dosage compaction presses and, more particularly, to methods and systems for real-time vibroacoustic condition monitoring of and/or fault diagnostics in solid dosage compaction presses.

Abstract: According to the present invention, it is possible to determine a defect on a product caused in a press process by applying a predetermined acoustic signal to an object to be inspected and then sensing propagation of the applied signal, and it is possible to improve inspection performance, using an acoustic sensor capable of sensing sounds in an audible band and a high-frequency sensor capable of sensing sounds in an non-audible band.

Abstract: A transmitter circuit and method for an ultrasonic thickness measurement system having an ultrasonic transducer and a cable with known cable impedance, the cable connecting at least the transmitter circuit to the ultrasonic transducer, the transmitter circuit comprising: an electrical pulse voltage signal emitter for producing an electrical pulse voltage signal to be propagated over the cable to the ultrasonic transducer, the electrical pulse voltage signal having a pulse nominal voltage value; a matched impedance circuit for matching a cable impedance of the cable at the transmitter circuit for an electrical parasitic reflection signal of the electrical pulse voltage signal, the electrical parasitic reflection signal being caused by an impedance mismatch between the cable and the ultrasonic transducer, a parasitic nominal voltage value of the electrical parasitic reflection signal being at most the pulse nominal voltage value.

Abstract: [Problems to be solved] A physical/chemical sensor that enables reduction of the size of the sensor and formation of arrays of the sensors is provided. The sensor can sense small change of surface stress and can measure mass of fixed specific substance. Also, a measuring method of the specific substance using the sensor is provided. [Means for solving problems] A physical/chemical sensor has a movable membrane (3) having a diaphragm structure provided to form a hollow section (2) between the movable membrane (3) and a light receiving surface of a light receiving element (1), a first piezoelectric membrane (4) that is provided on a front-side surface or a backside surface of the movable membrane (3) and that excites the movable membrane (3), and a second piezoelectric membrane (5) that is provided on the front-side surface or the backside surface of the movable membrane (3) and that senses a voltage caused by oscillation of the movable membrane (3).

Abstract: According to the present invention, it is possible to determine a defect on a product caused in a pressing process by applying a predetermined acoustic signal to an object to be inspected and then sensing propagation of the applied signal, and it is possible to improve inspection performance, using an acoustic sensor capable of sensing sounds in an audible band and a sound collector that collects sounds and prevents noise. Further, it is possible to prevent defective panels from being put into the following process line by inspecting panels produced in a panel production line.

Abstract: Apparatuses and methods for detecting hidden or modified objects in a vehicle are disclosed. Embodiments include detection of vehicle irregularities, such as irregularities in the acoustical response of a vehicle tire as the tire rolls over a surface, irregularities in the orientation of the vehicle body, the response of a vehicle component (such as an axle, wheel, tire, etc.) to the vehicle moving over a surface, and the response of a vehicle component to vehicle generated vibrations. In alternate embodiments subsystems detecting different irregularities communicate with one another.

Abstract: Embodiments of the invention provide a piezoelectric actuator module, which includes a multilayer part comprising a multilayer piezoelectric material part and an electrode part connected to the multilayer piezoelectric material part, and a support layer coupled with the multilayer part. The piezoelectric actuator module further includes a support part displaceably supporting the support layer. The multilayer piezoelectric material part is poled in the same direction, and the multilayer part is configured to expand or contract when voltages in anti-phase are applied to the electrode part.

Abstract: A deformation measurement sensor for measuring pressures and shearing forces according to the present invention includes: a plurality of beams shaped like a lattice; a strain gauge attached to each of the plurality of beams for measuring a deformation rate; a frame connected to the end of the lattice shape for surrounding the plurality of beams; and holes for arranging lines and formed in the intersections of the plurality of beams, whereby it is possible to precisely measure the deformation rate depending on the pressures or shearing forces exerted to a plurality of areas.

Abstract: Methods, systems, and apparatuses are disclosed for the protection of optical components used during laser bond inspection. In one embodiment, an optic surface wetting enhancement is provided on a protective optic to assist in forming a substantially flat film of transparent liquid from transparent liquid applied to a surface of a protective optic. A flat film of transparent liquid on a surface of a protective optic may be used to retain debris and effluent backscatter produced during a laser bond inspection process.

Abstract: The invention relates to a method of detecting a buildup of silt in a pipe or open channel of a fluid flow network. The pipe or open channel has a system with at least one set of velocity sensors to measure flow velocities at predetermined horizontal levels. The method includes the steps of computing flow using measured flow velocities and cross-sectional areas for each flow layer, summing the flows to provide a total flow, monitoring the measured flow velocities and storing the measured flow velocities to detect any ongoing reduction in flow velocity of at least a lowermost velocity sensor to provide an indication of a buildup of silt in the pipe or open channel.

Abstract: A magnetically inductive flow meter unit for determining a flow rate of a fluid flowing through a measuring tube, having a measuring tube having a measuring channel and a measuring sensor, which is disposed in the measuring channel and is oriented in alignment with the wall of the measuring tube, the measuring sensor including an electrode head, which is made of an electrically conductive material and has a fluid contact section, the electrode head being in direct contact with the fluid flowing through the measuring tube by means of the fluid contact section, the electrode head having an indentation on the side facing the fluid, which forms at least part of the fluid contact section.

Abstract: An ultrasonic flow meter unit, mounted to a fluid passage through which a measurement target fluid flows, comprises a pair of ultrasonic transducers each including a piezoelectric substrate, and an acoustic matching member; a measuring circuit which measures a flow of a target fluid based on time for which an ultrasonic pulse propagates between the pair of ultrasonic transducers; and an insulating damping member unitarily formed to cover at least a portion of each of a portion of each of the pair of ultrasonic transducers, which portion contacts the fluid passage, the piezoelectric substrate, and the measuring circuit.

Abstract: A method of and apparatus for assessing the condition of a fluid conduit. The method comprises providing a measurement apparatus comprising a measurement region in fluid communication with the fluid conduit. The measurement apparatus is operable to measure at least one of pressure and flowrate in the measurement region. A pressure surge is effected or generated to propagate in the fluid conduit, and at least one of a pressure response or a flowrate response from the fluid conduit is measured. From a pressure data set and a flowrate data set, a data set representative of the cross sectional area along the fluid conduit is determined. This enables average or over all area profiles along long fluid pipelines to be deduced.

Abstract: The invention relates to a device for measuring the differential pressure in a flowing fluid, comprising a housing (3) having two coaxial openings (7, 8) and an inner space (29), which inner space can be accessed by the or the at least one of the openings (7, 8), a measuring nozzle that is arranged in the housing (3) and that has a flow channel (22) comprising a cross-sectional constriction (23), a differential pressure sensor (39) comprising two measuring inlets (40, 42), by means of which differential pressure sensor a difference between pressures at the measuring inlets (40, 42) can be measured, wherein a first of the measuring inlets (40) is in connection with the flow channel (22) and a second of the measuring inlets (42) is in connection outside of the measuring nozzle with the inner space (29), and a shut-off body (12) that comprises the measuring nozzle and that is rotatably mounted in the housing (3) about a rotation axis, which shut-off body in a first rotational angle position connects the flow cha

Abstract: A vibration isolation system of mass flowmeter, includes upper horizontal section, vertical section, lower horizontal section, upper arc section between the upper horizontal section and vertical section, and lower arc section between the vertical section and lower horizontal section of U-shaped measuring tube. On the lower arc section there is vibration isolation block. It is characterized by full-length welding between the vibration isolation block's plane of the axis of U-shaped measuring tube and the lower arc section. The U-shaped measuring tube has an inertia center. The straight-line distance between the external welding point in the full weld of the lower arc section between the vibration isolation block mentioned and the measuring tube and the inertia center is equal to the straight-line distance between the internal welding point and the inertia center.

Abstract: A load sensor includes a core having a hollow part provided therein and containing magnetic material and a coil attached to the core. A magnetic path along which a magnetic flux generated by a current flowing in the coil is formed along a circumference direction of the hollow part. The core has a load-receiving portion that receives a load at a surface of the core located in a crossing direction crossing a plane along which the magnetic path is formed.

Abstract: Disclosed herein are a test apparatus of a fluidic sample, which tests the fluidic sample, and a control method thereof. The test apparatus of the fluidic sample includes a housing, an installing member in which a cartridge receiving a fluid is inserted, a pressing member which is disposed in the housing to press the cartridge and perform an inspection of the fluid, a driving unit of which at least a part is coupled to the pressing member so as to movably drive the pressing member, and a sensing unit of which at least a part is opposite to the driving unit so as to sense a position of the driving unit. According to the present invention, since the sensing unit can recognize the position of the driving unit, the pressing member can apply uniform pressure to the cartridge.

Abstract: Stretchable electronic structure comprising one intrinsically fragile thin film integrated on or within a soft heterogeneous substrate. The invention also relates to a process for manufacturing such a structure.

Abstract: Circuits, methods, and apparatus that provide pressure sensing devices having a pressure sensor including a diaphragm supported by a frame. The pressure sensor may be mounted on an application-specific integrated circuit. A passage may extend through the application-specific integrated circuit from its underside to its topside where it may terminate in a cavity formed under the diaphragm. Circuit components may be formed in the second wafer portion and located in areas that are not under the first wafer portion. Circuit components may be formed in the second wafer in areas under the first wafer portion, such as under the frame or under the diaphragm. Circuit components may be formed in the second wafer such that they are partially under the first wafer portion, or partially under the frame or partially under the diaphragm.

Abstract: A vehicle seat suspension mat (12) comprises suspension springs (14) for supporting a seat cushion (16) and a pressure sensor module (18) arranged on the springs for being applied against a bottom surface of the seat cushion. The pressure sensor module produces an electrical signal responsive to pressure acting on it. The pressure sensor module comprises a base plate (20) and a film-type pressure sensor (22) arranged on the base plate. The pressure sensor includes a pressure-sensitive cell (36). The base plate comprises a frame (26) and an actuator (28) that is linked to the frame in such a way that it is capable of movement relative to the frame. The actuator is arranged against the pressure-sensitive cell of the film-type pressure sensor and comprises a fixation element (48) fixing the base plate to the springs. The fixation element provides a spacing between the base plate and the springs.

Abstract: A sample encapsulation system includes a base, a chamber having an inlet and a chamber housing in which the chamber is housed. The chamber is fixedly mounted at least in part within the housing and the housing is movably mounted to the base. The system includes a cap, a first ram operably mounted to the cap for engaging the chamber inlet and a second ram positioned in the chamber opposite the inlet. The second ram is movable toward and away from the first ram. The chamber and housing are movable toward the cap for engaging the first ram with the chamber inlet during an encapsulation cycle and away from the cap, disengaging the first ram from the chamber inlet following an encapsulation cycle. The system includes heating and cooling assemblies and a temperature sensor located remotely from the chamber interior to automatically isolate cooling water to the system.

Abstract: A thermophoretic sampler includes a sample assembly into which a removable sample cartridge can be inserted. The sample cartridge holds a substrate that, upon insertion, is exposed to a sample chamber. Thermophoresis is induced in the sample chamber, causing nanoparticles to be deposited on the substrate.

Abstract: A method of containing a sample of a gaseous mixture flowing in a pipeline at a flow rate, for analysis of same by at least one analyzer of which the operating conditions are not compatible with the physico-chemical conditions of the gaseous mixture in the pipeline is described. The method includes collecting a sample of the gaseous mixture in the pipeline, diluting the collected sample with a dry dilution gas, at a dilution temperature (T_dil) equal to or close to the temperature (T_prel) of the gaseous mixture in the pipeline during the collection step, and conveying the collected and diluted sample out of the pipeline via an outlet pipe for analysis of the same by said analyzer.

Abstract: An installation assembly for connecting a probe element to a wall of a container, comprising: a first mounting part and a second mounting part, wherein the first mounting part serves for attaching the assembly to the container wall and has a lead-through through which the probe element is insertable. The second mounting part serves for receiving and fastening the probe element and the first and the second mounting part are flexibly connected to each other.

Abstract: Gyroscopic systems to stabilize vehicles and provide kinetic energy recovery are disclosed. The gyroscopic system uses gyroscopic forces to maintain a vertical orientation at zero and low speeds, as well as maintain stability at all speeds. The gyroscopic forces are also be used to affect the bank angle of vehicles in turns, and to improve cornering by shifting forces to the inside wheels. The gyroscopes are also used to store kinetic energy, which is later used to accelerate the vehicle.

Abstract: A valve unit includes a positioning device for converting a rotary motion into a linear motion, a valve rod, a drive unit, a drive shaft with an eccentric arranged thereon, a coupling element comprising a slot, and an output shaft arranged at the eccentric which moves in the slot of the coupling element. The valve rod is connected with the coupling element. The valve rod is linearly movable with the coupling element between an initial position where the valve is closed and an end position. The slot comprises a guide path which cooperates with the eccentric having an angle with a plane perpendicular to a direction of movement of the adjusting element. The initial position of the eccentric is a position which is located before a dead center existing for an axial movement of the output shaft. The dead center is passed during a rotational movement of the drive shaft.

Abstract: A linear actuator includes a housing (100), a base plate (200) disposed in the housing (100), and two actuating mechanisms (310, 320) disposed on the base plate (200) and received in the housing (100). Each actuating mechanism (310/320) comprises a motor (311/321), a transmission assembly (312/322), a screw rod (313/323), and a supporting block (314/324). Two motors (311, 321) and two transmission assemblies (312, 322) are disposed on the base plate (200). Two motors (311, 321) are kinetically connected to two assemblies (312, 322), respectively. One end of the screw rod (313/323) is connected to and rotated by the transmission assemblies (312/322). The other end of the screw rod (313/323) is screwed to the supporting block (314/324). Thus, two supporting blocks (314, 324) are driven to move in the housing (100).

Abstract: A ball screw with support devices includes a nut base having two sides equipped with the support devices for preventing the screw from deflection. Two runner structures are provided near two ends of the screw. The runner structure includes a driving wheel and a driven wheel having different diameters and concentrically installed. The nut base is connected to the driving wheel via an active connecting element for driving the driving wheel to rotate. The driven wheel moves with the driving wheel and is connected to the support devices via passive connecting elements so that the support devices and the nut displace synchronously. By controlling a diameter ratio between the driving and driven wheels, the nut and the support devices displace with proportional speeds, thereby allowing the support devices to always stay at the two sides of the nut as designed and provide reliable support.

Abstract: An automated manual transmission for a vehicle may include an input shaft (INPUT) configured to allow a rotational force to be transmitted from a power source, an output shaft configured to be disposed in parallel with the input shaft so as to draw out power, and a plurality of shifting gear pairs including driving gears and driven gears installed on the input shaft and the output shaft respectively so as to be circumscribed in pairs and provide different shifting stages for respective pairs, wherein at least two of the shifting gear pairs are respectively configured so that one of the driving gear and the driven gear is connected to the input shaft or the output shaft so as to control power by planetary gearsets, and the other is connected to the input shaft or the output shaft so as to control power by a synchronizer.

Abstract: A damper structure for a gear device includes a first gear (2) mounted to turn with respect to a shaft (1) in a circumferential direction, a second gear (3) mounted on the shaft (1) to rotate integrally, a stopper rubber (33) mounted on the second gear (3) to face the first gear (2), and a pressing protrusion (24) at the first gear (2) to face the second gear (3). The stopper rubber (33) is configured to be elastically deformed by pressing the pressing protrusion (24) in a circumferential direction of the second gear (3) during rotation of the first gear (2) and be restored to the initial shape by separating the pressing protrusion (24) during stop of the first gear (2). A recess (25) for accumulating lubricating oil in the first gear (2) is formed to face the stopper rubber (33).

Abstract: A default-to-park mechanism for a transmission includes an output member, a rotatable plate, a latching mechanism, and a biasing member. The output member is rotatable to park, reverse, neutral, and drive positions. The rotatable plate is coaxial with the output member. The plate and the output member interfere with one another such that the plate is moved in a first direction of rotation by the output member and the output member is moved in a second direction of rotation by the plate. The plate is releasably held by the latching mechanism to prevent rotation in the second direction of rotation when the output member is in the reverse, neutral, and drive positions. The biasing member biases the plate to rotate in the second direction of rotation to return the output member to the park position when the plate is released by the latching mechanism.

Abstract: A transmission device for a vehicle is provided. The transmission device includes a first rotating unit configured to be rotatably coupled to a first rotating axis and a second rotating unit configured to be rotatably coupled to a second rotating axis separated from the first rotating axis. A joint unit is configured to connect the first rotating unit and the second rotating unit to allow the first rotating unit and the second rotating unit to rotate relative to each other. A shift mode selection unit is mounted on at least one of the first rotating unit, the second rotating unit, and the joint unit. Additionally, a driving unit is configured to rotate the second rotating unit about the second rotating axis in response to receiving an operating signal to change an angle between the first rotating unit and the second rotating unit with respect to the joint unit.

Abstract: A coaxial drive apparatus for multidirectional control, including: a housing; a stage pivotally installed in the housing, with the object laid on the stage; a rotary shaft connected to the stage and rotated to cause the stage to pivot; a rotation transmitting unit transmitting a rotating force of the rotary shaft to the stage; a sliding pipe coaxially fitted over the rotary shaft so as to be moved along a lengthwise direction of the rotary shaft or to be rotated on a central axis of the rotary shaft; a moving unit moving the object laid on the stage in the lengthwise direction of the rotary shaft according to a movement of the sliding pipe, and moving the object in a transverse direction of the rotary shaft according to a rotation of the sliding pipe; and a controller providing a driving force to the rotary shaft and to the sliding pipe.

Abstract: The invention relates to a method for case-based enabling or disabling of the function of steering wheel or steering column switches in a motor vehicle. According to the invention, at least one function of one of the steering wheel or steering column switches is enabled or disabled depending on the operation of another steering wheel or steering column switch.

Abstract: An automotive cable assembly for mechanically linking a first mechanical system to a second mechanical system for facilitating a transfer of tension loadings there-between, the cable assembly having a multi-stranded polymer-based core element having a first polymer based end fitting at a first end and a second polymer based end fitting at a second end such that the first polymer based end fitting is for retaining a coupling to the first mechanical component of the first end and the second polymer based end fitting is for retaining coupling to the second mechanical component at the second end during the transfer of tension loading. The first mechanical system can be a door latch, the first mechanical component a latch lever, the second mechanical system a door handle/remote and the second mechanical component a door lever.

Abstract: An apparatus for reducing an effort of a clutch pedal for a vehicle may include a pedal member through both sides of which a guide slot that may be extended frontwardly and then rearwardly may be formed integrally to pass the both sides, a pedal arm lever provided at an upper part of a pedal arm so as to be protruded towards the guide slot, a guide bar engaged to the pedal arm lever and passing through the guide slot, wherein the guide bar is movable along the guide slot when the pedal arm pivots, and an elastic member, a first end of which is connected to the pedal member, and a second end of which is connected to the guide bar, such that a turnover force is generated thereto when the pedal arm pivots forwardly and a recovery force is generated thereto when the pedal arm pivots rearwardly.

Abstract: An accelerator pedal unit (1) for a motor vehicle includes an accelerator pedal (11) for controlling a propelling force of a motor of the motor vehicle, and a return spring. A position change of the accelerator pedal (11) from its starting position caused by an actuating force against a restoring force exerted by the return spring results in an increase of the propelling force of the motor, and the restoring force of the return spring returns the accelerator pedal (11) toward its starting position when the actuating force subsides. A friction device (100, 200, 300, 400, 500, 600) generates a friction force that acts in addition to the restoring force. Alternatively, an electromechanical main actuator (18) produces an additional restoring force (FZusatz) that can be variably controlled using a control unit (12).

Abstract: An accelerator pedal apparatus includes a pedal arm which includes an accelerator pedal; a housing which supports the pedal arm between a rest position and a maximum depression position as being rotatable around a predetermined swing axis line; a first return spring which exerts urging force to the pedal arm to return toward the rest position; and a reaction force adding mechanism which adds reaction force opposed to tread force of the accelerator pedal. The reaction force adding mechanism includes a movable member movably arranged against the housing while receiving reaction force of the first return spring, a reaction force spring arranged between the movable member and the pedal arm to be capable of generating reaction force against the tread force, and a lock member capable of locking the movable member not to be movable at desired timing.

Abstract: The invention relates to a locking device for locking a movable component, in particular a superposition drive, comprising a locking element which in a locking position is formed to cooperate with the movable component. The locking element includes a damping mechanism which during the movement of the locking element into the locking position attenuates a mechanical contact of the locking element with the movable component. The damping mechanism comprises an elastically mounted contact element movable relative to the locking element, which is arranged such that during the movement of the locking element into the locking position it gets in contact with the movable component.

Abstract: The cam follower roller device comprises a body, a shaft mounted on the body, a roller mounted on the shaft and able to rotate, and a plain bearing interposed radially between the shaft and the roller. An outer surface and/or an inner surface of the plain bearing comprise a plurality of cavities. The ratio of the sum of the surfaces areas of the cavities to the total surface area of the outer surface, or of the inner surface, in which the cavities are formed is between 2% and 40%. The cavities have a depth between 0.5 ?m and 5 ?m.

Abstract: The cam follower roller device comprises a body 12, a roller 14, and a shaft 16 mounted on the body 12 and comprising an outer seat for mounting the roller to rotate. The roller comprises an inner surface 14a radially surrounding the seat and is mounted able to rotate with respect to the shaft. The outer seat of the shaft and/or the inner surface 14a of the roller comprise a plurality of cavities. The ratio of the sum of the surfaces areas of the cavities to the total surface area of the outer seat, or of the inner surface, in which the cavities are formed is between 2% and 40%. The cavities have a depth between 0.5 ?m and 5 ?m.