5431results about "Bearing assembly" patented technology

A abnormality diagnosing apparatus used in a machine equipment including a rotating or sliding part relative to a stationary member includes a detecting portion 31 fixed to the rotating or sliding part or the stationary member and including a vibration sensor 32 and a temperature sensor 33, and a signal processing portion 81 for determining a state of the part from a detecting signal outputted by the detecting portion 31. The signal processing portion 81 determines presence or absence of a abnormality, or presence or absence of the abnormality and a degree of a damage of the part based on a combination of a measured result by the vibration sensor 32 and a measured result by the temperature sensor 33.

Torque shafts and other related systems and methods are described herein. In one embodiment, the torque shafts are both flexible and capable of transmitting torque. An apparatus for transmission of torque includes an elongate body, comprising a plurality of joint segments, each joint segment configured to pivot with respect to an adjacent segment and being further configured to have at least two link elements.

The wireless sensor adds identification information peculiar to respective sensor modules to detection data of vibration, temperature, and so on, detected by the sensor modules respectively. The wireless sensor transmits the detection data with the identification information as a signal through a communication unit by radio waves. On the other hand, the management apparatus receiving the signal classifies and files the detection data on the basis of the identification information included in the signal. Then, the monitoring system is designed to make the management apparatus manage a plurality of wireless sensors attached to movable shafts of processing machines or the like.

A wheel bearing includes a sealing device 5 positioned between inner and outer members 1 and 2. This sealing device 5 includes an elastic member 14, which eventually forms an encoder grid and is provided on a first annular sealing plate 11. A second annular sealing plate 12 is provided with sealing lips 16a to 16c. An engagement 18 between a cylindrical wall 11a of the first annular sealing plate 11 and the inner member 1 is provided with an elastic member 20 made of a material dissimilar to that for the elastic material 14. This elastic member 20 may be a rubber coated layer, resin paint layer, a thin film of adhesive material or a ring-shaped rubber member. Thereby, any possible ingress of water across an engagement surface of the annular sealing plate is prevented, accompanied by increase of the lifetime of the bearing, with no problem associated with separation and displacement of the annular sealing plates. The magnetic flux density can also be easily secured.

A driveshaft assembly includes a yoke including a body portion, a pair of opposed yoke arms that extends generally in a first axial direction from the body portion, and a neck portion that extends generally in a second axial direction from the body portion. A driveshaft tube is secured to the neck portion of the yoke, such as by magnetic pulse welding. A ring is secured to the body portion of the yoke, such as by press fitting, and a balance weight is secured to the ring, such as by welding.

An abnormality-diagnosing device is used to diagnose if a bearing device used on the axle of a railway vehicle is normal. The abnormality-diagnosing device comprises a detection processing part, an operation processing part, a result output part and a control processing part, wherein, the detection processing part outputs the signal generated by the bearing device, which is regarded as an electric signal, the operation processing part conducts an abnormality diagnosis on the bearing device according to the output of the detection processing part, the result output part outputs the judgement result of the operation processing part, and according to the judgement result, the control processing part returns a control signal to the control system of the railway vehicle.

A turbocharger comprising two closely spaced ball bearings that does not require lubricating oil from an engine. The bearing housing forms a cooling jacket with two bearing engagement surfaces engaged with the outer races of the ball bearings through an intermediate radial spring. Closely spacing the ball bearings provides a rotor shaft of minimal length. In addition, an external motor-generator may be by mounted on the turbocharger, with the motor rotor solidly connected to the turbocharger rotor. In such an assembly, an electronic control is energizes the motor from battery power during acceleration up to approximately torque peak speed; thereafter, the control changes to a generator mode when there is excess energy in the engine exhaust gas.

A ball-and-socket joint with integrated angle sensor for a motor vehicle, especially for the chassis of the motor vehicle is created. The ball-and-socket joint has a ball-and-socket joint housing (6) provided with a joint opening (7), a ball pivot (1) having a joint ball (2) and a pin (3), which is mounted, with its joint ball (2), rotatably and pivotably in a hollow-ball-shaped bearing surface in the ball-and-socket joint housing (6), and projects, with its pin (3), through the joint opening (7) out of the ball-and-socket joint housing (6). A two-pole field transducer (5) is provided at the end of the joint ball (2) facing away from the pin (3). The poles of the field transducer (5) are arranged on the ball surface. In this case, at least two field sensors (13) are arranged at a distance from one another with respect to the meridian plane defined by the large circle on the hollow-ball-shaped bearing surface running at right angles to the bearing longitudinal axis in the area or on the ball-and-socket joint housing (6) facing away from the joint opening, and interact with the field produced by the field transducer (5).

The present invention relates to a connection between a spindle and a bearing assembly to retain the bearing assembly on the spindle. A combination lock washer and spindle bearing assembly is provided to include a spindle, thrust washer, lock washer and nut in which the lock washer simultaneously locks the inner thrust washer and an outer spindle nut. According to the present invention, the thrust washer, lock washer and nut may be oriented at any angle relative to one another allowing for infinite bearing adjustment positions.

This temporary support member for a sensor unit of a bearing assembly is stackable with a similar support member when a sensor unit is mounted on each one of the support member and the similar support member.

An abnormality diagnosis system for diagnosing a presence or absence of an abnormality of a bearing unit for a railway vehicle axle, comprises a sensing / processing portion for outputting a signal generated from the bearing unit as an electric signal, a calculating / processing portion for making an abnormality diagnosis of the bearing unit based on an output of the sensing / processing portion, a result outputting portion for outputting a decision result of the calculating / processing portion, and a controlling / processing portion for feeding back a control signal to a control system of the railway vehicle based on the decision result.

A wheel support bearing assembly includes inner and outer members (1 and 2) and at least one row of rolling elements (3) operatively interposed between the inner and outer members (1 and 2) and an annular sealing device (5) sealing an open end of an annular space defined between the inner and outer members (1 and 2). The sealing device (5) includes first and second annular sealing plates (11 and 12) fitted to different members out of the inner and outer members (1 and 2). Each of the first and second sealing plates (11 and 12) includes a generally cylindrical wall (11a or 12a) and a radial wall (11b or 12b) assembled together to represent a generally L-shaped section. The first sealing plate (11) is fitted to one of the inner and outer members (1 and 2) that serves as a rotating member. An elastic member (14) mixed with a powdered magnetic material is bonded by vulcanization to the radial wall (11b) of the first sealing plate (11). A protective cover (18) made of a non-magnetic material is positioned on one side adjacent an exterior of the multi-pole magnet (14) with a predetermined air gap left therebetween that the number of revolution can be detected through the protective cover (18).

A display apparatus for a portable terminal includes an expandable flexible display unit, a sensing unit including of a plurality of magnets and a plurality of sensors sensing the magnets to sense an amount of display unit area accommodated in an accommodation unit of the display unit, and a controller setting pixel values according to sensed amount of the display unit area.

Various embodiments relate to bearing assemblies configured to enable removal and replacement of superhard bearing elements, and bearing apparatuses that may utilize such bearing assemblies. The disclosed bearing assemblies may be used in a number of applications, such as downhole motors in subterranean drilling systems, directional drilling systems, roller-cone drill bits, and many other applications. In an embodiment, a bearing assembly includes a support ring and a retention ring assembled with the support ring. The retention ring includes a plurality of through holes. The bearing assembly further includes a plurality of superhard bearing elements, with each superhard bearing element inserted partially through and projecting from a corresponding one of the through holes of the retention ring. The retention ring and each superhard bearing element are collectively configured to restrict displacement of each superhard bearing element beyond a selected position in a direction away from the support ring.

The present invention relates to a connection between a spindle and a bearing assembly to retain the bearing assembly on the spindle. A combination lock washer and spindle bearing assembly is provided to include a spindle, thrust washer, lock washer and nut in which the lock washer simultaneously locks the inner thrust washer and an outer spindle nut. According to the present invention, the thrust washer, lock washer and nut may be oriented at any angle relative to one another allowing for infinite bearing adjustment positions.

There is provided a rotation detection device 1 which includes a plurality of magnetic encoders (2A, 2B) of a ring shape arranged coaxially and having different numbers of magnetic poles, a plurality of magnetic sensors (3A, 3B) each operable to detect the magnetic field of the corresponding magnetic encoder and having a function of detecting positional information within a single magnetic pole of the corresponding magnetic encoder, a phase difference detector (6) for determining the phase difference of magnetic field signals detected respectively by the magnetic sensors (3A, 3B), and an angle calculator (7) for calculating an absolute rotation angle of the magnetic encoders based on the detected phase difference.

A construction is adopted in which an annular spacer 27 is held between first and second inner races 2a, 2b. An internal clearance in a double-row bearing unit is measured in a middle step of assembling work of a wheel supporting bearing assembly, and in the event that a resultant measured value does not become a proper value, an axial dimension of the spacer 27 is adjusted, so that the internal clearance becomes the proper value. Thereafter, the assembling work is made to continue until the assembling work is completed. A problem which is to be solved by the invention is solved in the way described above.

In a motor unit as an example of the invention, a bearing assembly 5 is securely held on an inner circumferential portion of a hollow cylindrical section 11a of a first housing member 11 with an adhesive section 52 interposed therebetween. The adhesive section 52 includes: a first adhering subsection 52a in which an anaerobic adhesive is present and a second adhering subsection 52b in which an externally stimulated curing type adhesive cured by heating or ultraviolet irradiation is present. Inserting the bearing assembly 5 into the hollow cylindrical section 11a produces a temporarily fixed state by the first adhering subsection 52a, thereby enabling the external stimulated curing type adhesive to be stably cured in the temporarily fixed state.

A yawing system for a wind turbine, the wind turbine comprising a tower fixed to the ground and a frame (1) housing an electric power generator, the tower and the frame (1) being joined by the yawing system which allows the orientation of the frame (1) with respect to the tower according to the direction of the wind. The yawing system comprises: a gear ring (2) fixed to the tower, the gear ring having a sliding track (3) on which the frame (1) rests and slides in its yawing movement, at least one geared motor fixed to the frame (1), meshed with the gear ring (2) through a gear wheel, at least one active braking module (5), and at least one passive braking module (6). The invention further comprises a sliding track (3) and a friction track on the gear ring, this friction track (10) being different from the sliding track (3), and the active braking modules (5) and passive braking modules (6) comprising a friction plate (11) acting on the friction track (10) of the ring. The frame (1) rests on the gear ring (2) by means of horizontal plates (8) and radial plates (9) made of a sliding material, and are kept in their position by separating parts (7). Furthermore, the gear ring (2) is divided into gear-toothed circular segments to favor its repair. Other aspects are a wind turbine with the previous yawing system and a yawing process of a turbine by means of the previous yawing system.

A ball and socket joint with integrated angle sensor, especially for use as a vehicle level control in the chassis of a motor vehicle. The ball and socket joint has a ball and socket joint housing (1), a ball pivot (2) mounted in the ball and socket joint housing (1), a bipolar field transducer (4) arranged at the joint ball (3) of the ball pivot (2), and at least one magnetic field direction sensor (5), which is arranged at the ball and socket joint housing (1) and interacts with the magnetic field generated by the field transducer (4), wherein only one pole of the bipolar field transducer (4) is arranged on the surface of the ball.

The wireless sensor adds identification information peculiar to respective sensor modules to detection data of vibration, temperature, and soon, detected by the sensor modules respectively. The wireless sensor transmits the detection data with the identification information as a signal through a communication unit by radio waves. On the other hand, the management apparatus receiving the signal classifies and files the detection data on the basis of the identification information included in the signal. Then, the monitoring system is designed to make the management apparatus manage a plurality of wireless sensors attached to movable shafts of processing machines or the like.

A stability control apparatus, includes: a grip detector that changes an output based on a grip force applied in a direction hindering a slippage of a wheel, acting on a contact face between the wheel supported by a wheel supporting rolling bearing unit and the road surface, the wheel supporting rolling bearing unit for supporting freely rotatably the wheel to a vehicle body; and a controller that performs a control for keeping a running stability of the vehicle in response to an input of a detection signal of the grip detector.

A tolerance ring configured to reduce torque ripple for a pivot bearing in an actuator arm assembly. The tolerance ring comprises a cylinder having a predetermined length, and a first and a second row of contacting portions arranged around the surface of the cylinder, the contacting portions of the second row are circumferentially displaced with respect to the first row by a distance greater than zero but less than the distance of the contacting portion and the spacing between adjacent contacting portions in the first row.

A lithographic projection apparatus includes a passive magnetic bearing configured to provide support between a first and second part of the lithographic apparatus and allow both parts to be displaced relative to each other in a direction perpendicular to the support direction. The passive magnetic bearing includes first and second magnetic assemblies. Each magnetic assembly includes at least one permanent magnet.

A self-sealing device for a tire on a vehicle wheel, including a wheel, a wheel hub supporting the wheel, a wheel supply circuit, an inflating and deflating valve for supplying compressed air from a pressurized circuit, wherein the valve is positioned between the wheel and the wheel hub and includes sealing means integrated into the wheel supply circuit, wherein the sealing means is activatable to an open position in the presence of the valve and to a closed position in the absence of the valve.