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JPWO2020130124A1 |
A base plate (30) having an insertion hole (30a) through which the shaft (1) is inserted and a top foil (10) arranged around the insertion hole (30a) are provided, and the top foil (10) is inserted. A thrust foil bearing (3) having a plu...
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JP6941548B2 |
To effectively cool a slide body.A bearing 40 includes a slide body 42 disposed at an outer periphery of a rotary shaft 21 and a back shell 46 disposed at an outer periphery of the slide body 42. A through hole 47 which penetrates along ...
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JP6935766B2 |
Provided is a spindle device with which it is possible to increase the vibration damping effect and rotate a rotary spindle in a stable manner. The distance from the rear end surface of a thrust bearing to the center of gravity of the ro...
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JP6934729B2 |
A squeeze film damper bearing device includes an inner race that is fitted around an outer periphery of a rotating shaft, an outer race that is supported on an inner periphery of a bearing retaining member via an annular space, a plurali...
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JP6936109B2 |
To provide a bracket of an integrated bearing structure capable of avoiding secondary damage.A bracket 40 of a bearing structure is configured to rotatably support a propeller shaft through a bearing and a vibration control member. The b...
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JP6934801B2 |
Provided is a rack bush capable of reducing an effect on the feeling of a steering operation. A rack bush (1) comprises: a rack bush 1 housed in a cylindrical housing (4), which supports a load applied to a rack bar (5) while allowing mo...
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JP6934409B2 |
To provide a bearing device with a squeeze film damper, which can adjust an oil film thickness so as to optimize an oil film attenuation constant.A bearing device comprises: a bearing part for rotatably supporting a rotational shaft; a s...
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JP2021131135A |
To improve reliability of a bearing structure in a high-speed rotation range.A bearing structure 100 includes: a rotation shaft 11; a dynamic pressure bearing 12 including a foil 22 disposed around the rotation shaft 11 to constitute a b...
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JP6929156B2 |
A bearing, for supporting a rotation shaft of a rotatable member, capable of being supported by a supporting portion provided with an engaging hole engageable with the bearing includes positioning projections having contact surfaces and ...
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JP6923086B2 |
Provided is a bearing structure, including: a damper groove formed in at least one of an outer peripheral surface of an outer ring of a rolling bearing or an inner peripheral surface of a bearing hole so as to extend in a circumferential...
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JP6921407B2 |
To provide a thrust foil bearing which enables a high pressure gaseous film to be disposed between itself and a rotating body even if the rotating body rotates at a low speed and achieves excellent damping performance.A thrust foil beari...
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JP2021113553A |
To provide a bearing structure of a supercharger that can restrain transmission of self-excited vibration generated in a shaft while preventing deterioration caused by exhaust in a high-temperature state.A bearing structure 20 of a super...
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JP2021113606A |
To provide a power transmission device that has a first power transmission shaft and a second power transmission shaft, which are connected with each other via a spline fitting portion, and that suppresses vibration and noise caused by a...
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JP6906276B2 |
An air foil bearing for supporting a high speed rotating assembly such as in a turbocharger, a high speed centrifugal separator or the like. The foil bearing includes at least one bump foil and at least one top foil. The top foil leading...
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JP6897999B2 |
To provide a shaft body support which enables an attitude of a processing head to be maintained easily and can inhibit deterioration of processing accuracy, and to provide a tool including the shaft body support.A shaft body support 11 i...
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JP6899289B2 |
To provide a center bearing support which can sufficiently secure a cross sectional length of a bellows part of an elastic body to secure durability of the elastic body, prevent the bellows part from contacting with a dust cover part to ...
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JP6894499B2 |
A tilting-pad bearing (1) includes a sleeve (5), a plurality of tilting pads (4), which are arranged in the sleeve (5), wherein an associated spring element (3) is provided between the sleeve (5) and each tilting pad (4), wherein the spr...
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JP6896894B2 |
A bearing damper element includes a ring mounted between a rotating object and a supporting object which supports the ring. The ring includes at least three slits through the thickness of the ring in the axial direction and at a distance...
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JP6892406B2 |
To provide a special rubber supporting bearing for a vertical long-sized pump capable of avoiding a dry friction whirl.A dumper inner cylinder 2 is outwardly fitted to a bearing inner cylinder 1 accepting a rotating shaft, a damper membe...
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JP6891665B2 |
A radial foil bearing (3) includes: a bearing housing (12) provided with an insertion hole (12a); a top foil (9) accommodated in the insertion hole; and a cover (50, 50A, 50B) attached to an end surface of the bearing housing in an axial...
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JP6881645B1 |
To efficiently cool a thrust gas bearing. A thrust gas bearing (60) has a flange portion (17), a first base portion (61), a first gas film forming portion (63), a second base portion (62), and a second. It includes a gas film forming por...
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JP6875337B2 |
Provided is a center bearing in which resistance to separation of a rubber-like elastic body from a bracket can be increased while the durability of the rubber-like elastic body against the axial displacement thereof is ensured. A center...
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JP6875345B2 |
Provided is a center bearing with reduced vibration and increased durability. A center bearing (2) is provided with a bracket (12), a radial bearing (9), a pair of bellows (13), and a stopper (14). The bellows (13) each have a diaphragm ...
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JP2021076176A |
To improve durability of a ball screw device.A ball screw device 100 includes: a ball shaft body 110; a ball nut 120; a housing 140; a bearing 170 which holds the ball nut 120 in a rotatable manner; annular biasing members 190 respective...
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JP2021076177A |
To provide a power transmission device capable of reducing a moment load input to a ball screw device while applying a stable preload to a raceway ring.A power transmission device includes: a housing; a ball screw device having a nut rec...
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JP2021076178A |
To provide a power transmission device capable of reducing rigidity to a moment load of a bearing.A power transmission device includes: a housing; a ball screw device having a nut, a screw shaft, and a plurality of balls; a pulley device...
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JP2021076175A |
To improve durability of a ball screw device.A ball screw device 100 includes: a ball shaft body 110 and a ball nut 120; a housing 140; a bearing 170 which holds the ball nut 120 in a manner that the ball nut 120 can rotate relative to t...
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JP6874669B2 |
A crank cap assembly (10) provided with a crank cap (20) rotatably supporting a crankshaft (5) includes a mass portion (30), two cap bolts (50) fixing the crank cap (20) to an engine body, and an elastic supporter (40) disposed between t...
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JP6873531B2 |
To provide a slide bearing which enables a reduction of the number of components and assembly man-hours and can be manufactured at a lower cost.A rack bush 1 is housed in a cylindrical housing and supports a load applied to a rack shaft ...
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JP2021067353A |
To enhance accuracy of a foil bearing, and facilitate assembly.A foil bearing 10 comprises a foil holder 11 comprising a cylindrical holder body 13, and a first foil row 12A and a second foil row 12B comprising a plurality of pieces of f...
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JP6864985B2 |
A quad foil journal air bearing (5) includes a journal sleeve (22) having an inner circumference that defines an inner surface. A first foil assembly (11a) includes a first key (36a) coupled to the inner surface of the journal sleeve (22...
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JP6867078B2 |
To provide a power transmission shaft that can secure a clamp allowance (axial dimension) of a clamp part even when a labyrinth structure is formed for a bearing.A labyrinth structure is configured by forming a labyrinth recess part 2c i...
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JP6857513B2 |
To provide a center bearing support that enables spring properties (spring constant) to be changed by enabling the seal air amount of an air spring structure 16 to be changed ex-post facto after completion of production of the center bea...
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JP6856404B2 |
A squeeze film damper bearing device includes an inner race that is fitted around an outer periphery of a rotating shaft, an outer race that is supported on an inner periphery of a bearing retaining member, a plurality of rolling bodies ...
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JP6856403B2 |
A squeeze film damper bearing device includes an inner race that is fitted around an outer periphery of a rotating shaft, an outer race that is supported via an annular space on an inner periphery of a bearing sleeve provided on a bearin...
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JP6836357B2 |
A liquid pump includes a motor (10) and an impeller (12). The motor (10) includes a stator (14), a rotor 18, a base body (16) and a shaft sleeve unit 20 supporting the rotor (18) for rotation. The shaft sleeve unit (20) includes a fixing...
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JP2021017931A |
To reduce the noise of a reduction gear.A reduction gear 100 comprises a first bearing 40 for rotatably supporting a base end side of a drive gear shaft 20, a second bearing 50 for rotatably supporting a tip side of the drive gear shaft ...
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JP6828802B2 |
The radial foil bearing (3, 3A, 3B, 3D) includes: a wave sheet-shaped back foil (11); and an intermediate foil (10) supported by the back foil, and the intermediate foil includes a flat portion (10b) facing a hill part (11c) of a wave sh...
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JP6823902B2 |
To provide a slide bearing which can elongate a life by improving the durability of an elastic body.A rack bush 1 comprises: a cylindrical bush main body 2 which is accommodated in a cylindrical housing, and supports a load applied to a ...
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JP6813345B2 |
A bearing assembly (42A) includes a shaft (90A) and a thrust runner (68A) attached to the shaft (90A). The shaft runner protrudes radially outward from the shaft. A thrust bearing (66A) is positioned axially adjacent to the thrust runner...
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JP6812907B2 |
To achieve a structure capable of restraining friction at an engagement portion between a worm wheel and a worm shaft, and capable of preventing occurrence of damage or plastic deformation in a spring constituting an energizing member.An...
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JP6806251B2 |
The radial foil bearing includes: a housing (12) provided with an insertion hole (12a); a back foil (11) disposed on an inner peripheral surface of the insertion hole, a notch (26) being provided at an edge of the back foil in an axial d...
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JP2020204337A |
To improve wear resistance and seizure resistance between a rotating shaft and a bearing even when the rotating shaft is inclined due to flexure and the like, and to prevent the rotating shaft and the bearing from breaking.A sintered oil...
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JP6804231B2 |
To enable a revolving shaft to be rotated at a high speed in a stable manner.This invention relates to an air turbine driving spindle in which an outer peripheral surface 3a of an inner cover member 3 is formed with a first groove 33 and...
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JP6802028B2 |
A rotary machine (10) comprises a stator (12) having a stator casing (18), and a rotor shaft (16) having a rotational axis (X-X) and supported in said stator casing (18) by at least one radial magnetic bearing (20, 22). The rotary machin...
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JP6800637B2 |
A foil bearing (1) is provided with: a top foil section (21) having a bearing surface (X); a first back foil section (22) for supporting the top foil section (21) from behind; and a base surface (B) for supporting the first back foil sec...
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JP2020197287A |
To provide a dynamic pressure air bearing capable of actualizing a higher limit rotating speed while suppressing a friction increase during low-speed rotation.A dynamic pressure air bearing 20 includes: a cylindrical top foil 22 arranged...
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JP6798810B2 |
To increase the load capacity of a foil bearing.A foil bearing 10 comprises: a top foil part Tf that includes a bearing surface X; a back foil part Bf that elastically supports the top foil part Tf from behind; and a foil holder 11 fitte...
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JP6790778B2 |
To provide a steering device capable of surely suppressing a change in rotation resistance of a ball screw nut due to a displacement of the ball screw nut in a radial direction relative to a steering shaft.A steering device includes: a s...
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JP6781071B2 |
A squeeze film damper bearing device includes an annular space that is defined between an outer periphery of an outer race, an inner periphery of a bearing retaining member, and a pair of seal rings and forms a squeeze film, and an annul...
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