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7604409 |
Hydrodynamic bearing member and manufacturing method thereof
The present invention aims to improve the efficiency of a clamping step for combining a flange with a shaft and to improve productivity. The shaft and the flange are tentatively combined in the...
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7559697 |
Dynamic bearing unit
A fluid dynamic pressure effect can be sufficient without receiving a large effect of viscous friction of lubricating oil with changes in the environmental temperature in which it is used, and...
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7513689 |
Hydrodynamic bearing device
A hydrodynamic bearing device is provided for use with a spindle motor. The hydrodynamic bearing device has a sleeve made of a sintered metal that is obtained by sintering a sintering material that...
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7470064 |
Axial thrust bearing
An axial thrust bearing for axially supporting a rotating shaft of an exhaust gas turbocharger connected to a lubricating oil circuit includes a profiled annular bearing surface which contacts an...
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7458724 |
Pressure biased lubricant valve
An exemplary center housing for a turbocharger includes a bore for supporting a turbocharger shaft, a lubricant feed port, a first lubricant outlet port, a second lubricant outlet port and a valve...
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7435003 |
Fluid dynamic bearing unit
A flange on a shaft of a fluid dynamic bearing unit is to be provided with a hole connecting an outer periphery of the flange and an outer periphery of the shaft. A radial groove is provided on a...
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7422370 |
Hydraulic compensation for magnetically biased fluid dynamic bearing motor
A fluid dynamic bearing motor including a stationary sleeve, a rotating shaft axially disposed through the sleeve, a journal gap between the shaft and the sleeve, the gap defined by first and...
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7243626 |
Camshaft adjuster
A device for changing the control times of an internal combustion engine (camshaft adjuster ( 1 )) having a pressure medium distributor ( 21 ) arranged within a camshaft ( 11 ) is provided. The...
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7237956 |
Hydrodynamic bearing and disc rotation apparatus using the same
A high-accuracy, long-life hydrodynamic bearing that does not cause oil film breakage in bearing clearances and a disc rotation apparatus using the bearing is disclosed. Oil film breakage is...
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7189003 |
Turbomachine
A turbomachine has a rotor shaft, which is mounted in a bearing arrangement containing a hydrodynamic axial bearing, and a rotor disposed on the rotor shaft. A hydrostatic axial bearing is...
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7160030 |
Hydrodynamic bearing and apparatus for driving polygonal mirror using the same
A hydrodynamic bearing having an improved air discharging path for discharging air from the bearing when a shaft is inserted into the bearing, and an apparatus for driving a polygonal mirror using...
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7134791 |
Dynamic pressure bearing device, spindle motor, disk drive device, and method of manufacturing dynamic pressure bearing device
A dynamic pressure bearing device and a spindle motor used for a magnetic disk drive device capable of increasing an impact resistance, reducing A-PRO (oscillating motion of shaft), reducing a...
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7090401 |
Grooving pattern for grooved fluid bearing
A fluid dynamic bearing is provided having two surfaces rotatable with respect to each other, a lubricating medium located in a gap between the two surfaces during rotation of the bearing, and an...
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6982510 |
Low profile fluid dynamic bearing
The design comprises a shaft and sleeve supported for relative rotation by a journal type fluid dynamic bearing utilizing grooves on one of the shaft or sleeve surfaces. A grooved pattern of a...
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6979923 |
Motor having dynamic pressure fluid bearing and disc drive apparatus provided with the motor
A motor ( 100 ) having a dynamic pressure fluid bearing is composed of a hub ( 2 ), a rotor ( 4 ) provided with a shaft ( 7 ) of which one end portion is securely fastened by the hub ( 2 ) and...
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6966699 |
Dynamic pressure bearing device, and manufacturing method and assembly jig thereof
It is an object of the present invention to provide a miniaturized, high-precision, easy, and low-cost dynamic pressure bearing device and a manufacturing method thereof. In manufacturing a dynamic...
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6957917 |
Hydrodynamic axial slide bearing for a generator
Hydrodynamic plane thrust bearing ( 26 ) for a generator ( 10 ), preferably operable with a water turbine, with a rotor ( 12 ), a track ring ( 30 ) rotating with the shaft ( 20 ) of the rotor ( 12...
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6945697 |
Dynamic gas bearing of a motor spindle comprising aeration
The invention relates to a dynamic gas mounting of a motor spindle, with a rotating shaft 2 which is gas-mounted in a housing 3 in the radial and axial direction, at least one radial gas...
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6939048 |
Hydrodynamic thrust bearing
A hydrodynamic thrust bearing, forming a part of a bearing system for a rotary bearing of spindle motors utilized to power hard disk drives, which includes at least one annular thrust plate and a...
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6851862 |
Gas lubricated thrust bearing
A gas lubricated axial thrust bearing for resisting axial forces acting on a machine rotor, comprises at least one pad mounted on a stationary machine surface and axially spaced from a surface of...
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6827494 |
Diverted flow thrust bearing
A hydrodynamic thrust bearing of this invention comprises a body having a load-bearing surface comprising an oil supply channel and an oil return channel positioned along respective inside and...
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6827493 |
Turret support system and bearing unit
The invention is a bearing unit and bearing system for supporting a large rotatable element, such as a mooring turret. The bearing unit includes a hydrostatic suspension system which enables the...
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6799891 |
Motor device
According to the present invention, a cylindrical side wall is provided in a housing so as to surround an outer periphery of a stopper member. Further, an end surface of the side wall is higher...
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6729767 |
Step bearing for axial support of an open-end spinning rotor
To improve the known step bearings for the support of open-end spinning rotors, it is proposed to design the bearing body with a machine-side support and a rest for the spinning rotor. According to...
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6694617 |
Method of assembling a low cost fluid dynamic bearing motor
A method of assembling a motor comprising assembling the shaft and thrust plate to be used in the fluid dynamic bearing assembly, and at least partially inserting the combined shaft and thrust...
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6663287 |
Thrust dynamic pressure bearing apparatus and method for manufacturing the same
A thrust dynamic pressure bearing apparatus includes a shaft member and a thrust plate having a fixing hole that is provided with chamfered sections Ca and Cb at the fixing hole. The shaft member...
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6657341 |
Device for axial stopping of a rotor, in particular an armature of an electric motor, for balancing machines
It is disclosed a device for axial stopping of a rotor, in particular an armature of an electric motor, for balancing machines, the device comprising a thrust unit having an abutment surface ( 8 )...
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6592490 |
Well pump gear box hydrodynamic washer
A hydraulic washer or spacer is used to reduce friction between a planet gear and the planet carrier. The washer has a top side and a bottom side, an inner diameter and an outer diameter. A mating...
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6543937 |
Axial fitting with sliding bearings of the roll mantle of a roll of a paper/board or finishing/converting machine
A sliding bearing axial fitting of a roll mantle of a roll in a paper or board machine for preventing a relative axial movement of the roll mantle with respect to a stationary roll axial, the roll...
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6524004 |
Externally pressurized gas bearing spindle assembly
A compact externally pressurized gas bearing spindle assembly can increase the degree of vacuum in a vacuum chamber. In a spindle assembly wherein a rotary shaft is provided in a housing through a...
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6505968 |
System for active stiffness, power, and vibration control in bearings
A bearing assembly having a shaft member having a bearing race and a piezoelectric member opposing the bearing race is situated so that when a voltage is applied to it, it expands against the...
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6499882 |
Sliding bearing
The improved sliding bearing provides fitting of a cap into a sleeve with steadily fixation of adhesive, and prevention of the remained adhesive outside of the desired area. The sliding bearing...
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6494620 |
Fluid bearing and rotary drive apparatus using the same
A fluid bearing includes a rotary body with a rotor having a cylindrical surface to be borne and a thrust plate arranged at least at an end of the rotor, and a housing including a radial bearing...
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6401444 |
Bearing composition for a open-end spin rotor
An open-end spinning apparatus has a spin rotor ( 1 ) which, by means of its shaft ( 11 ) is supported by support plates ( 4 ), wherein as an abutment for the axially directed force on the spin...
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6371651 |
Thrust dynamic pressure bearing
It is an object of the invention to provide a thrust dynamic pressure bearing in which an unsymmetrical contact during rotation is prevented from occurring, and a dynamic pressure space is...
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6361217 |
High capacity thrust bearing
A high capacity thrust bearing is disclosed for use in a tubular drilling string to support axial loads resulting from upward or downward jarring forces. The thrust bearing comprises an inner...
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6328475 |
Air bearing, in particular for the shaft of a motor spindle
An air bearing (1) for a shaft (2), adapted to rotate at high peripheral speed, of a motor spindle for driving a machining tool includes a shaft (2) having bearing surfaces (3, 5, 6) and mating...
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6323496 |
Apparatus for reducing distortion in fluid bearing surfaces
A vacuum seal and fluid bearing apparatus for reducing the distortion of the bearing surfaces of a gas bearing is described. The apparatus includes a stator attached around an aperture in a vacuum...
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6190049 |
Fluid thrust bearing for indicating instruments and the like
The present invention is a novel fluid thrust bearing system and method for assembling the same. When used in an indicating instrument, the fluid thrust bearing of the present invention reduces the...
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6179554 |
Low friction fluid bearing and turbine using same
A low friction bearing comprises a first element having a first surface. A second element having a second surface is rotatable about a centerline relative to the first element. A flow passage...
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6132094 |
Multiple groove thrust bearing
A thrust bearing having a radial taper in its top (land) surface provides improved load distribution when used in high-pressure positive displacement swashplate piston pumps. The thrust bearing...
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6126414 |
Thrust bearing arrangement for turbocharger
A thrust bearing arrangement for a turbocharger including a thrust bearing unit having separate normal and reverse thrust bearings, and a thrust member provided on a turbine shaft and interposed...
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6121703 |
Fluid dynamic bearing motor design for mounting a rotating shaft directly into a base casting
A fluid dynamic bearing including a sleeve and a counterplate captured within a shoulder on the sleeve and including a threaded mounting extension for mounting the assembly from a base or the like....
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6082901 |
Hydraulic axial bearing
A hydraulic axial bearing for a radially-mounted axle (1), which has a flange (1a) incorporating an outer, substantially axial sealing gap (7) formed between the flange and a sealing ring (3), and...
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6082239 |
Hydrodynamic blade guide
A saw having a self-pumped hydrodynamic blade guide or bearing for retaining the saw blade in a centered position in the saw kerf (width of cut made by the saw). The hydrodynamic blade guide or...
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6045266 |
Supercharger thrust bearing
A supercharger thrust bearing for use in a machine rotatable at a high speed includes radial oil grooves formed in a pad surface. Gradients are formed at the outward radial ends of the oil supply...
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6034454 |
Motor
A motor having a shaft body, a generally disk-like thrust plate extending outwardly in a radial direction from an outer periphery surface of the shaft body, a cylindrical sleeve structure which...
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6031651 |
Scanning optical apparatus
A scanning optical apparatus has a stationary shaft and a rotary sleeve rotatably fitting to each other. The apparatus is arranged to deflection-scan a light beam by rotating a rotary polygon...
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6019515 |
Externally pressurized gas bearing assembly
An externally pressurized gas bearing assembly including a bearing sleeve fixed in contact with an inner peripheral surface of a housing provided with a gas supply passage communicated with fine...
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5983781 |
Sliding bearing with self-adjusted load bearing capacity
A sliding bearing, particularly for slippers of hydrostatic piston machines, with a support having a supporting surface on which slides a sliding piece having a sliding and sealing surface. Between...
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