108results about "Rotary combination bearings" patented technology

An electromechanical brake pressure generator including a spindle drive unit for converting a rotational motion of an electric motor-driven drive shaft into a translatory motion of a piston that is coupled to the spindle drive unit, the spindle drive unit being operatively connected to the drive shaft via a multi-stage transmission. The multi-stage transmission is a planetary gear set having a first and a second stage. With the aid of the transmission, a spindle or a spindle nut of the spindle drive unit is drivable, which is rotatably mounted in a housing of the brake pressure generator via a bearing assembly receiving axial and radial forces. A braking system for a vehicle including an electromechanical brake pressure generator is also described.

An assembly for rotational equipment includes a shaft, a first rolling-element bearing, a second rolling-element bearing, and a mid-shaft foil bearing. The shaft extends along a rotational axis between and to a first axial end and a second axial end. The shaft is configured for rotation about the rotational axis. The first rolling-element bearing is disposed at the first axial end. The second rolling-element bearing is disposed at the second axial end. The mid-shaft foil bearing is disposed axially between the first rolling-element bearing and the second rolling-element bearing.

A bearing system and method of operating the same that may include an outer bearing and an inner bearing, and a bearing engagement system configured to control a rotation of the inner bearing relative the outer bearing. In examples, the bearing may include a hybrid bearing having a roller bearing and a gas bearing such as a foil bearing, leaf-type bearing, or a tilt plate bearing. The bearing engagement system may include a displacer configured to linearly translate at least the inner bearing, displace an interface element, or both, and / or an electromagnet configured to generate a magnetic field to apply a magnetic torque to the inner bearing.

A telescoping mechanism includes a handle including a motor and a controller operatively connected to the motor for controlling operation of the motor, a spindle operatively coupled to, and configured to be rotated by, the motor. The spindle is not journaled by the motor and instead is journaled by a bearing support distanced from the motor. Telescoping segments are coupled to the spindle. The telescoping segments are nested together in a contracted orientation and extend outwards upon rotation of the spindle.

A telescoping mechanism includes a handle including a motor and a controller operatively connected to the motor for controlling operation of the motor, a spindle operatively coupled to, and configured to be rotated by, the motor. The spindle is not journaled by the motor and instead is journaled by a bearing support distanced from the motor. Telescoping segments are coupled to the spindle. The telescoping segments are nested together in a contracted orientation and extend outwards upon rotation of the spindle.

The present application provides a scroll compressor, which comprises a housing, a scroll mechanism, a motor driving the scroll mechanism through a driving shaft, and a bearing seat in which a first bearing and a second bearing are arranged and which are arranged on one side of the motor in an axial direction to support the driving shaft, wherein the motor and the bearing seat are accommodated inside the housing, and the scroll compressor further comprises a first balance block matched with the driving shaft, and the bearing seat, the first bearing and the second bearing constitute a first cavity in which the first balance block is located. According to the present application, the load on the bearing of the scroll compressor is significantly reduced, thereby prolonging the service life of the bearing and the compressor.

The utility model relates to a self-aligning bearing, and provides a self-aligning bearing which can realize high bearing capacity and is maintenance-free in order to solve the problems of small self-aligning amount, high processing cost, low limit rotating speed, high assembly requirement or low bearing capacity of the conventional self-aligning bearing. The bearing comprises an annular outer ring, an annular inner ring arranged in the outer ring, a retainer arranged on the inner surface of the inner ring, a plurality of rollers arranged on the retainer, an O-shaped sealing ring, a lip-shaped oil seal, a sealing ring and a self-lubricating gasket, each roller is in a cylindrical shape; annular first grooves are formed in the two sides of the inner raceway of the outer ring; annular third grooves are formed in the two sides of the inner raceway of the inner ring; the lip-shaped oil seal comprises a first metal framework layer and a first sealing layer arranged on the first metal framework layer; the sealing ring comprises a second metal framework layer and a second sealing layer arranged outside the second metal framework layer; and the self-lubricating gasket is arranged between the inner raceway of the outer ring and the outer raceway of the inner ring.

A slew bearing (1) for rotatably supporting an object on a base about a slew axis. The slew bearing comprises a stationary ring (2) and a rotary ring (3) part. The stationary ring part is provided with a stationary raceway member forming a stationary raceway surface oriented substantially perpendicular to the slew axis. The rotary ring part is provided with a rotary raceway member (7) forming a rotary raceway surface. Rolling elements (9) are provided between the stationary raceway surface and the rotary raceway surface. The slew bearing further comprises an elastically compressible resilient insert (8) sandwiched either between the rotary raceway member and the rotary ring part or between the stationary ring part and the stationary raceway member. The slew bearing further comprises an axial load sensor (10) for monitoring an axial load on the slew bearing by measuring a distance over the resilient insert.

CLEAN A wind turbine (100) with a rotor bearing (1) is proposed, wherein drainage chambers (7) on both sides of the rotor bearing (1) are connected to each other via a plurality of channels (5) traversing an outer ring (2) of the rotor bearing (1), which are distributed over the circumference of the outer ring (2) and that an axis (A) of the rotor bearing (1) is arranged at an angle in the range of 2° to 100 to the horizontal line (H) for promoting a flow of leakage oil through the channels (5).

The invention relates to an electromechanical brake pressure generator (1) having a main shaft transmission unit (2) for converting a rotational movement of an electrically driven drive shaft (3) into a translational movement of a piston (4) coupled to the main shaft transmission unit (2), wherein the main shaft transmission unit (2) is in operative connection with the drive shaft (3) via a multi-stage transmission (5). According to the invention, the multi-stage transmission (5) is a planetary gear transmission having a first stage and a second stage (5.1, 5.2). A main shaft (6) or a main shaft nut (7) of the main shaft transmission unit (2) is drivable by means of the transmission (5) and is rotatably supported in a housing (9) of the brake pressure generator (1) by a bearing assembly (8) which is subjected to axial and radial forces. The invention also relates to a brake system for a vehicle having an electromechanical brake pressure generator (1) according to the invention.

An axial bearing, particularly in a wind turbine (1), comprises a shaft (3) hydraulically mounted both radially and axially on at least one side in a housing (4), wherein at least the axial bearing is segmented. Axial bearing segments (12) on the housing side are held in an individually replaceable manner on a support (7) rotatable about the rotational axis of the shaft (3).

The utility model belongs to the technical field of petroleum drilling equipment, and particularly relates to a screw drill transmission shaft body anti-falling mechanism which comprises a transmission shaft, a lower TC bearing movable sleeve, a lower TC bearing static sleeve, an anti-falling ball, a spacer bush, a semi-ring pressure-bearing sleeve, a thrust bearing set, a transmission shaft shell, an upper TC bearing static sleeve and an upper TC bearing movable sleeve. The lower TC bearing movable sleeve is connected with the transmission shaft through threads, and the transmission shaft shell is connected with the lower TC bearing static sleeve through threads; the upper end of the lower TC bearing movable sleeve is provided with six positioning grooves for the anti-falling balls, the anti-falling balls are arranged between the lower TC bearing movable sleeve and the spacer bush and matched with the positioning grooves, the semi-ring is connected with the upper end of the lower TC bearing movable sleeve, and the pressure-bearing sleeve is pressed on one side of the semi-ring and arranged on the transmission shaft in a sleeving mode. According to the device, the lower TC bearing movable sleeve is connected with the lower TC bearing through the six anti-falling balls, and the lower TC bearing is connected with the lower part of the transmission shaft through the threads, so that the failure part does not fall off, and the underground safety is ensured.

A gearbox assembly for a turbine engine, the gearbox assembly including a plurality of planet gears. Each of the plurality of planet gears is associated with a planet pin. A plurality planet bearing rollers are disposed between the planet pin and each of the plurality of planet gears. The plurality of planet bearing rollers are configured to transfer a rotation of each of the plurality of planet gears to the planet pin. A rolling element bearing (REB) cage is configured to guide and to position the plurality of planet bearing rollers so that the plurality of planet bearing rollers are equally spaced apart, the REB cage having an inner diameter surface facing the planet pin and an outer diameter surface facing opposite to planet pin. An outer diameter guide ring is disposed radially outward of the outer diameter surface to hold the REB cage.

A leg assembly (102) of a tricone bit includes a cone and a leg fitting inside the cone. The leg includes an axis (232) defining an axial center of rotation of the cone, a first raceway for a first row of bearings (202), a second raceway for a second row of bearings (206), and a third raceway for a third row of bearings (210) disposed between the cone and the leg, at a distal end (204), at a middle section (208), and at a proximal end (212) of the leg. A first clearance for the first row of bearings for the first raceway is less than a second clearance for the second row of bearings for the second raceway, which is less than a third clearance for the third row of bearings for the third raceway, such that the first row of bearings initially supports most of the radial load applied to the tricone bit.

A slew bearing for rotatably supporting an object on a base about a slew axis. The slew bearing comprises a stationary ring and a rotary ring part. The stationary ring part is provided with a stationary raceway member forming a stationary raceway surface oriented substantially perpendicular to the slew axis. The rotary ring part is provided with a rotary raceway member forming a rotary raceway surface. Rolling elements are provided between the stationary raceway surface and the rotary raceway surface. The slew bearing further comprises an elastically compressible resilient insert sandwiched either between the rotary raceway member and the rotary ring part or between the stationary ring part and the stationary raceway member. The slew bearing further comprises an axial load sensor for monitoring an axial load on the slew bearing by measuring a distance over the resilient insert.

A leg assembly of a tricone bit includes a cone and a leg fitting inside the cone. The leg includes an axis defining an axial center of rotation of the cone, a first raceway for a first row of bearings, a second raceway for a second row of bearings, and a third raceway for a third row of bearings disposed between the cone and the leg, at a distal end, at a middle section, and at a proximal end of the leg. A first clearance for the first row of bearings for the first raceway is less than a second clearance for the second row of bearings for the second raceway, which is less than a third clearance for the third row of bearings for the third raceway, such that the first row of bearings initially supports most of the radial load applied to the tricone bit.

Planetary gear carrier arrangement (1) of a planetary gear in which a number of planet gears (2) are rotatably arranged on each bearing pin (3) about an axis of rotation (a), wherein the bearing of the planet gear (2) on the bearing pin (3) is effected by a radial bearing (4) and an axial bearing (5) and wherein the axial bearing (5) is effected by at least one bearing disk (5), wherein the bearing disc (5) has at least one axially extending projection (7) along its circumference at a radially internal recess (6), wherein the radial bearing (4) comprises at least one needle roller bearing (4), wherein the needle roller bearing (4) comprises a cage (8), wherein the cage (8) has a radially inward surface (9) which is designed for the attachment of at least one projection (7), characterized by that the radially inner surface (9) is a recess that is incorporated into the cage (8).

An assembly (66) for rotational equipment includes a shaft (70), a first rolling-element bearing (72), a second rolling-element bearing (74), and a mid-shaft foil bearing (76). The shaft (70) extends along a rotational axis (68) between and to a first axial end (78) and a second axial end (80). The shaft (70) is configured for rotation about the rotational axis (68). The first rolling-element bearing (72) is disposed at the first axial end (78). The second rolling-element bearing (74) is disposed at the second axial end (80). The mid-shaft foil bearing (76) is disposed axially between the first rolling-element bearing (72) and the second rolling-element bearing (74).

The invention relates to a pivotal bearing (1) for rotatably supporting an object on a base about a pivot axis. The pivotal bearing comprises a fixed ring part (2) and a rotating ring part (3). The fixed ring part is provided with a fixed raceway member forming a fixed raceway surface oriented substantially perpendicular to the axis of revolution. The rotating ring part is provided with a rotating raceway member (7) forming a rotating raceway surface. Rolling elements (9) are arranged between the fixed raceway surface and the rotating raceway surface. The pivotal bearing further comprises an elastically compressible elastic insert (8) sandwiched between the rotating raceway member and the rotating ring member, or sandwiched between the fixed ring member and the fixed raceway member. The pivotal bearing further comprises an axial load sensor (10) for monitoring the axial load on the pivotal bearing by measuring the distance on the resilient insert.

A combined anti-friction / hydrodynamic common shaft bearing system and method of using the same to prevent reduction of the theoretical L10 life of an anti-friction bearing subjected to axial forces within the system comprising an anti-friction bearing secured to a rotating shaft. A housing carries the shaft and includes a plurality of oil passageways to provide hydrodynamic lubrication to the system. A hydrodynamic thrust bearing is secured to the housing adjacent to the anti-friction bearing, and a one thrust- collar is secured to the rotating shaft adjacent the hydrodynamic thrust bearing, with an axial gap between the thrust-collar and the hydrodynamic thrust bearing. The system inhibits axial forces on the anti-friction bearing which would otherwise cause premature failure of the bearing.

The invention relates to a base washer and bearing assembly. The invention particularly relates to a base washer that provides a homogeneous grease distribution and has the effect of reducing friction on the contact surfaces of the needle rollers, and a bearing assembly comprising this base washer.

A high-speed rotor shaft structure comprises a rotor, radial foil bearings, thrust foil bearings, support end covers, a shell and clutch bearing assemblies, the rotor is connected with the support end covers through the radial foil bearings, the thrust foil bearings and the clutch bearing assemblies, and the rotor is provided with radial foil bearing mounting shaft sections, thrust foil bearing mounting grooves and clutch bearing assembly mounting seats at both ends; the support end covers are provided with radial foil bearing mounting holes, thrust foil bearing mounting end faces and clutch bearing assembly mounting shaft sections. The application can be used for high-speed motor rotors or aviation high-speed shafts, and is supported by ball bearings at low speed and supported by foil bearings at high speed, so that starting is stable, friction is not generated at high speed, heat generation is reduced, lubrication system requirements are lowered, and environmental pollution is reduced; the application is used in frequent start-stop occasions, reduces friction heat generation and coating wear of the foil bearings, and prolongs service life.

A height-adjustable supporting mechanism (10) for a supporting unit (11) of a supporting system (12) for supporting and securing a radially acting heavy load (13), in particular a tower of a wind power plant, wherein the supporting mechanism (10) comprises a spindle drive (14) with a spherical bearing, wherein the spherical bearing compensates for all angular errors occurring as a consequence of the radially acting heavy load (13) in relation to the longitudinal axis (X) of the spindle drive (14).

The invention relates to agricultural equipment. The suspended bearing coupling includes a hub with a bore for housing an internal connecting shaft. A coupling suspension is attached to the mid-section of the hub outer surface. The external surfaces of both sides of the hub are designed to accommodate antifriction bearings, and a flange is installed on the outer surface of each antifriction bearing. A slide bearing is installed between the inner surface of each flange and said inner connecting shaft. Coaxial bores are made in each flange and in the inner connecting shaft to enable a spaced accommodation of the pins connecting the flange with the inner connecting shaft. The pins are designed to prevent their falling out. The inner connecting shaft in the bore of the hub is spaced by a gap, and the outer surfaces of each flange enable their fastening to outer shafts.

The invention relates to a thrust washer for dispensing a fluid, the thrust washer having a central bore extending parallel to an axis of rotation of the thrust washer for pushing the thrust washer onto a journal or a shaft, the thrust washer having a first thrust surface and a second thrust surface, the first thrust surface and the second thrust surface are arranged substantially parallel to each other, the first thrust surface having a first lubricant lattice in the form of a recess in the first thrust surface and / or the second thrust surface having a second lubricant lattice in the form of a recess in the second thrust surface, the first lubricant compartment or the second lubricant compartment is fluidically connected to the respective other thrust surface or the respective first lubricant compartment or the second lubricant compartment by means of a channel, in particular the channel axially penetrates the thrust washer substantially parallel to the rotational axis, and the first lubricant compartment or the second lubricant compartment is fluidically connected to the respective other thrust surface or the respective first lubricant compartment or the second lubricant compartment. Wherein the first lubricant compartment and / or the second lubricant compartment each tapering outward in the radial direction with respect to the axis of rotation.

The present invention discloses a parallel bearing rotor system, a motor and an electrical appliance. The rotor system includes a rotating shaft, and a pair of parallel bearings are arranged on the rotating shaft. The parallel bearings include a rotating shaft bearing and a stator bearing. The rotating shaft bearing is a contact bearing, and the rotating shaft bearing is sleeved on the rotating shaft and is tightly fitted with the rotating shaft. The stator bearing is a non-contact bearing, the stator bearing is sleeved on the rotating shaft bearing, and a gap is left between the inner wall of the stator bearing and the outer wall of the rotating shaft bearing. The stator bearing is fixed on the stator. The motor of the present invention includes the above rotor system. The rotor system of the present invention is applicable to high-speed working conditions, has low lubrication requirements, long service life and high reliability.

To perform switching between a rolling bearing and a sliding bearing by a simple configuration.SOLUTION: A motor bearing system 20 includes: a bearing 4 having an outer ring 6 provided so as to surround the outer periphery of a rotation shaft 2 of a motor 1, an inner ring 7 provided through a gap with the rotation shaft, and a plurality of rolling elements 5 interposed between the outer ring and the inner ring; and a clutch 10 provided on the outer periphery of the rotation shaft and arranged in parallel with the bearing along the axial direction of the rotation shaft, which can switch the state between a fixed state in which the inner ring of the bearing is fixed to the rotation shaft and a released state in which the inner ring is released from the rotation shaft. The bearing functions as a rolling bearing in the fixed state and as a sliding bearing in the released state. The clutch is provided so as to be rotatable with the rotation shaft, and movable in the axial direction, and forms the fixed state by moving to the bearing side in the axial direction while forming the released state by moving to a side opposite to the bearing in the axial direction.SELECTED DRAWING: Figure 1

The present invention discloses an active shaft-type combined air bearing, which includes an outer bearing seat, an inner bearing seat, a roller shaft, and a number of ball bearings. The inner bearing seat includes an outer ball bearing shaft seat, an inner air shaft seat, and an extended coaxial seat. One end of the extended coaxial seat is connected to a driving motor. When the roller shaft starts to rotate, the driving motor also starts to rotate, but the rotation direction of the driving motor is opposite to the rotation direction of the roller shaft, which increases the relative rotation speed of the roller shaft during takeoff, enabling the roller shaft in the foil ring to take off faster and at a lower rotation speed. When the rotation speed of the roller shaft gradually increases after takeoff, the driving motor gradually decelerates and rotates in the reverse direction, reducing the relative rotation speed between the roller shaft and the inner bearing seat. The original maximum rotation speed of the rotating shaft minus the rotation speed of the inner bearing seat in the same direction is the actual relative rotation speed of the rotating shaft relative to the inner bearing seat, reducing the relative friction and heat generation between the rotating shaft and the inner bearing seat, reducing wear and tear, and improving the service life and quality of the overall product.