47results about "Bearing load relief" patented technology

Non-recirculating rolling element bearing (100) in an overrunning cage configuration, comprising a guide (103), a motion stage (101) and a cage(102). The guide defines a direction of motion and comprises a first guiding surface (108) being essentially V-shaped. The first guiding surface comprises a first and a second rolling surface. The motion stage is arranged to move along the direction of motion between a first end (112) and a second end (113) of the guide. The motion stage comprises a second guiding surface (109) comprising a third and a fourth rolling surface arranged opposite to the first and second rolling surface, respectively. The cage is arranged to be partially interposed between the guide and the motion stage. The cage comprises a first (105), a second and a third (106, 107) set of rolling elements. The first set is arranged to roll on the first and third rolling surface. The second set is arranged to roll on the second and fourth rolling surface. The third set is arranged to roll on the first rolling surface. The guide and each rolling element of the third set are arranged to magnetically attract one another so as to bias the cage towards the guide. In a first state, in which the motion stage is moved towards the first end of the guide, a first rolling element of the third set is positioned between the second end of the guide and a first end (115) of the motion stage arranged nearest to the second end of the guide. In a second state, in which the motion stage is moved towards the second end of the guide, a second rolling element of the third set is positioned between the first end of the guide and a second end (114) of the motion stage nearest to the first end of the guide.

Ball joint, in particular for a motor vehicle, comprising a case (12), a ball stud (16) with a ball head (18), and a first and a second bearing shell (20, 22) for supporting the ball head (18), characterized in that In addition to the first and second bearing shells (20, 22), at least one further overload bearing surface (24) is provided.

The utility model provides a kind of self-lubricating linear guide rail, comprising: track frame, slider, multiple oil storage components, multiple pump pressure components and multiple positioning components, wherein, slider sliding installation is in track frame top end, multiple ball bearings are installed between slider inboard and track frame, multiple oil storage components are respectively arranged in the inboard of the four corners of slider, multiple pump pressure components are respectively arranged in the inside of the two sides of slider, one pump pressure component is respectively connected with two oil storage components, pump pressure component side is provided with sealing component, multiple positioning components are respectively installed in the two ends of track frame, and positioning component is compatible with sealing component.The self-lubricating linear guide rail of the utility model embodiment is mechanically linked with pump pressure system by manually adjustable positioning component, realizes the control single lubricating oil output according to load weight, effectively solves the problem of insufficient lubrication or over-lubrication caused by oil output fixed of traditional self-lubricating guide rail.

To provide a bearing device that is excellent in corrosion resistance to fluorine gas, and is also excellent in dimensional accuracy and durability.SOLUTION: A bearing device to be used in a fluorine gas environment is provided. The bearing device comprises: a magnetic bearing comprising a magnetic body and an electromagnetic coil; and a touchdown bearing for protecting the magnetic bearing, and comprising an inner ring, an outer ring, and a plurality of rolling bodies arranged between the inner ring and the outer ring. The inner ring and the outer ring of the touchdown bearing is made of a NiCrAl alloy.SELECTED DRAWING: Figure 1

A bearing system (20) for supporting a shaft (18), comprising: a bearing (30) including: an inner race (32b) about an axis (A), the inner race (32b) having an interior coupled to the shaft (18); rolling elements (34b) about the axis (A) and around the inner race (32b); and an outer race (38b) about the axis (A) and around the rolling elements (34b); a housing (50) having a cavity (52) defining an axial location (X) relative to the axis (A), the bearing (30) received by the cavity (52); a first axial loading structure (60) in the cavity (52) and operatively connected to the bearing (30); and a second axial loading structure (70) in the cavity (52) extending axially away from the axial location (X) in a first axial direction, the second loading structure (70) opposing movement of the bearing (30) relative to the axial location (X) in a second axial direction when the bearing (30) loads the second axial loading structure (70) in the second axial direction, the first and second axial loading structures operationally independent from one another.

A hybrid airfoil thrust bearing is provided for a shaft (602) including a thrust disc (603) that rotates with the shaft. The hybrid airfoil thrust bearing includes airfoil bearing components (610) and passive magnetic bearing components (630). The hybrid airfoil bearing components include a first top foil (611) immediately adjacent to a first side of the thrust disc and surrounding the shaft, first additional components (612), a second top foil (613) immediately adjacent to a second side of the thrust disc and surrounding the shaft and second additional components (614). The passive magnetic bearing components are integrated into the thrust disc and into the first and second additional components to remove a static load of the thrust disc on the first top foil and on the second top foil.

Apparatus for containing a flywheel comprising: a flywheel; a shaft; a bearing arrangement for supporting the shaft; and a housing for housing the flywheel, the shaft and the bearing arrangement; wherein the flywheel is mounted on the shaft, the shaft is mounted to the bearing arrangement, and the bearing arrangement is mounted to the housing; wherein the flywheel has a rim formed by a circumferential face of the flywheel, and a hub formed by a central region of the flywheel, the hub being wider, axially, than the rim such that a circumferential contact surface is formed by the hub that is coaxial with the rim; wherein the housing comprises an annular force transfer region that faces, and is concentric with, the contact surface; and wherein, in use, excessive radial movement of the flywheel results in the contact surface contacting the transfer region.

An electric motor system includes a drive shaft configured to rotationally drive a load, a bearingless motor and a radial magnetic bearing arranged side by side in an axial direction of the drive shaft, and a thrust magnetic bearing disposed between the bearingless motor and the radial magnetic bearing. A radial load on the drive shaft is supported in a non-contact manner by the bearingless motor and the radial magnetic bearing.

A bearing mount for mounting a bearing within a housing is disclosed. The bearing mount includes a plurality of biasing members spaced about a perimeter of the bearing mount to define a channel for receiving the bearing. Each biasing member includes a first end, a second end, and an intermediate portion intermediate the first and second ends. The first and second ends of each biasing member are configured to contact the housing at respective first and second points such that the intermediate portion is not supported by the housing between the first and second points, and the intermediate portion of each biasing member is configured to position the bearing within the channel. An electric motor including the bearing mount is also disclosed.

Magnetically stabilized cardan shaft bearing system (60), comprising: a holder (70) with a bearing receiving zone (82) with an inner annular surface (84); an insulator (90) made of a flexible material, arranged in the bearing receiving zone (82), wherein the insulator (90) has an outer section (92) supported on the inner annular surface (84) and an inner section (94) connected to the outer section (92) via several web elements (96), wherein the inner section (94) includes an opening (98) with an annular surface section (100); a cardan shaft bearing (104) arranged in the bearing receiving zone (82) and supported by the insulator (90), wherein the cardan shaft bearing (104) is arranged in the opening (98) of the inner section (94), the cardan shaft bearing (104) comprising an outer race (106) supported by the annular surface section (100), an inner race (107), and a plurality of bearing elements (109) between the outer race (106) and the inner race (107), wherein the inner race (107) of the cardan shaft bearing (104) includes a passage (112) capable of receiving a cardan shaft (46) for a vehicle rotatably supported; and an electromagnet (120) which is mounted in the holder (70) and surrounds only a part of the cardan shaft bearing (104) and the insulator (90), wherein the electromagnet (120) is selectively activated to move the cardan shaft bearing (104) within the bearing receiving zone (82).

The invention relates to a fluid film bearing (2) for a rotor hub (3) of a wind turbine (1) comprising a first part (10) and a second part (11) rotatably coupled to each other about a longitudinal axis. According to the invention, the first part (10) comprises an annular first sliding surface (14) extending in the circumferential direction of said fluid film bearing (2) along the first part (10). In addition, the second part (11) comprises a support structure (18) and a first group of bearing pads (12, 13) coupled to the support structure (18) and having a bearing pad sliding surface (17) configured to slide on the first sliding surface (14). In addition, the support structure (18) comprises a plurality of openings (20) for replacing the bearing pads (12, 13).

An axial alignment system for a rotary electric machine rotor includes: at least one first fixing ring; at least one first permanent magnet ring; at least one second fixing ring; and at least one second permanent magnet ring.

Bearing carrier 2 supporting bearing 4 within a housing. The carrier has tubular body 12 to contain bearing 2, external flange 16 engaging the housing and internal lip 18 restricting axial movement of

A magnetic levitation peripheral system suitable for sustaining a peripheral support rotor by magnetic levitation; and comprising a rotating magnetic element suitable for rotating around the axial axis of the peripheral support rotor, a magnetic repulsion element suitable for maintaining the axial and radial movement of the rotor, a stabilizer element suitable for containing the radial movement of the system, and an axial flow generator suitable for power generation without the need for a transmission train; where the rotating magnetic element and the magnetic repulsion element have embedded permanent magnets arranged according to parallel planes and circular lines, in line with a pre-established arrangement, in such a way that between both elements, together with the stabilizing element, the necessary magnetic repulsion can be given to support the wind rotor of peripheral support in a stable manner.

The invention relates to a drive device (2) for driving a watercraft, having a stator (4) and a rotor (8) which during operation rotates relative to the stator about a rotation axis (6) fixed in position in relation to the stator and is in the form of an internal rotor and at least during operation is supported on the stator in the axial direction by means of at least one first axial bearing device (10), wherein the first axial bearing device has at least one first rotor magnet device (18), which is arranged on the rotor and is designed to produce a rotor magnetic field, and at least one first stator magnet device (14), which is arranged on the stator and is designed to produce a first stator magnetic field, and is designed to form a first bearing force which acts on account of the first rotor magnetic field and the first stator magnetic field between the first rotor magnet device and the first stator magnet device and at least to some extent in the axial direction.

A monitoring system for monitoring condition of one or more safety bearings (110) of a magnetically levitated object (107) comprises sensor equipment (101 ) for producing a sensor signal indicative of movement of the magnetically levitated object, a memory (102), and a data processing system (103) configured to: record, to the memory, waveform samples of the sensor signal in drop situations in which magnetic levitation of the object stops and the object falls from a magnetically levitated position onto the one or more safety bearings, and to form a condition indicator of the safety bearings based on differences between the waveform samples recorded in different ones of the drop situations. Thus, the status of the one or more safety bearings is evaluated based on comparing historical records of drop situations.

A rotary machine damper includes: an inner member that is capable of supporting a bearing that rotatably supports a shaft of a rotary machine; an outer member that is provided on an outer circumferential side of the inner member; and a magnet. One of the inner member and the outer member is an electrically conductive member, and the magnet is fixed to the other one of the inner member and the outer member and faces the one of the inner member and the outer member through a gap.

The present invention provides a vacuum pump (1), preferably a turbomolecular pump, comprising a rotor shaft (9) configured to have one or more rotor blades (8) coupled to the rotor shaft, wherein the rotor shaft (9) defines a bearing well (7) that receives a permanent magnet bearing insert in an interference fit configuration, the permanent magnet bearing insert comprising one or more permanent magnet alloy rings (3, 4, 5) of the rotor bearing half of the permanent magnet bearing, and a radially outward-extending sleeve (16) coupled to the or each permanent magnet alloy ring, wherein the outer surface of the permanent magnet bearing insert (3) engages with the inward-facing wall of the bearing well (7) to provide an interference fit, and the radially outward-extending sleeve (16) has a coefficient of thermal expansion at least substantially the same as the coefficient of thermal expansion of the material of the rotor shaft (9) that defines the bearing well wall to be engaged.

A bearing assembly for mounting a rotatable shaft of a pump and the pump are disclosed. The bearing assembly includes a bearing including an outer ring and an inner ring, a bearing housing configured to support the outer ring of the bearing, the bearing housing extending around at least a portion of an outer surface of the outer ring across at least a portion of one end surface of the outer ring, and a shroud extending from the bearing housing toward the inner ring to thereby shield at least a portion of an annular gap between the inner ring and the outer ring.

Disclosed are an axial bearing, a turbo compressor using same, and a refrigeration cycle apparatus having same. The axial bearing, the turbo compressor using same, and the refrigeration cycle apparatus having same comprise an axial bearing comprising a bearing support member, a bearing plate, and a foil, wherein the bearing plate has at least one orifice for supporting a rotary shaft in the axial direction by spraying a fluid toward a thrust runner, and a foil, for supporting the rotary shaft in the axial direction by means of dynamic pressure generated when the rotary shaft rotates, may be provided on the outer or inner side of the orifice in the radial direction. Accordingly, friction loss between the thrust runner and the axial bearing at an early stage of an operation and / or during an overload operation can be suppressed, and at the same time, reliability and efficiency of the compressor and / or the refrigeration cycle apparatus, comprising the axial bearing can be increased during a normal operation and / or a low load operation.

A centrifugal separator is configured for processing a product by separating a relatively heavy component and a relatively light component therefrom. The centrifugal separator comprises a spindle (3) supported by a stationary frame (2). A drive unit (4) acts on a rotating member (5) mounted on the spindle to rotate the spindle. A centrifuge rotor (8) mounted to the spindle encloses a separation space (9). An upper bearing housing (20) is mounted to the stationary frame and supports bearings (22, 23) comprising an outer bearing ring (24) attached to the upper bearing housing and an inner bearing ring (25) attached to the spindle. The upper bearing housing is mounted to the stationary frame (2) via an elastic member (40) permitting the upper bearing housing and the spindle to move radially, and via an upper tilting member (41) permitting the spindle to tilt during operation of the centrifugal separator.

A hybrid bearing assembly is provided and includes stationary components, a shaft disposed to rotate relative to the stationary components, passive magnetic bearing components integrated into the shaft and the stationary components to generate passive magnetic force to resist radial movement of the shaft relative to the stationary components and an active damping system. The active damping system includes a stationary coil, a magnetic element rotatable with the shaft to induce current in the stationary coil and a circuit electrically coupled with the stationary coil. The circuit is configured to determine from the current an attitude change of the shaft and the magnetic element and to apply damping current to the stationary coil to resist the attitude change.