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8181348 Shielding fluid reservoirs of fluid dynamic bearing motors  
In one example, a fluid dynamic bearing motor having a shield member is provided. In one example, the method includes disposing a first member and a second member for relative rotation about an...
8144423 Fluid dynamic pressure bearing device, spindle motor and disk drive apparatus  
A fluid dynamic pressure bearing device includes a shaft, an annular member, and a rotating member. The annular member is fixed to or seamlessly defined with the shaft and is radially opposed to...
8134263 Bearing unit, motor using the bearing unit, and electronic equipment using the motor  
Disclosed herein is a bearing unit including a shaft; a radial bearing for supporting the outer circumferential surface of the shaft; a housing for accommodating the radial bearing, the housing...
8118570 Anisotropic bearing supports for turbochargers  
An exemplary anisotropic member (625, 1200, 1600, 1700, 1800, 1950) supports a bearing in a bore and can reduce non-synchronous vibration (NSV) of the bearing in the bore. An exemplary anisotropic...
8083413 Compliant hybrid gas journal bearing using integral wire mesh dampers  
A compliant hybrid gas journal bearing includes compliant hybrid bearing pads having a hydrostatic recess and a capillary restrictor for providing a flow of pressurized gas to the bearing. The...
7980764 Through-shaft fluid recirculation for a spindle motor  
An apparatus and method are described for a fluid dynamic bearing motor as may be utilized in a disc drive memory system. A fluid seal is situated at a first axial end of a bearing, and a grooved...
7911099 Outer rotor motor  
An outer rotor motor has a bearing housing with reduced machining and material costs, can be assembled with high accuracy, and has favorable durability. A bearing is attached to an inner...
7901138 Fluid bearing device  
A fluid bearing device (50B, 50AB) is composed of a shaft (1, 51); a sleeve (9, 59) into which the shaft (1, 51) is inserted; and lubrication fluid (20) intervening in a gap between the shaft (1,...
7883270 Hydrodynamic bearing type rotary device and recording and reproducing apparatus including the same  
A hydrodynamic bearing type rotary device is configured to prevent air from being trapped inside a bearing and causing the bearing to have oil film rupture and NPPR to deteriorate. In the device, a...
7868499 Spindle motor having plurality of sealing portions  
Disclosed herein is a spindle motor having a plurality of sealing portions. The spindle motor includes a rotor hub for rotating a recording medium mounted thereon, a rotating shaft secured to the...
7766550 Centering mechanisms for turbocharger bearings  
An exemplary spring for positioning a turbocharger bearing in a housing includes a free standing inner diameter, a free standing outer diameter and a substantially sinusoidal shape to provide an...
7744282 Motor  
One embodiment of the present invention provides a motor comprising a stator portion including a bearing using lubricant oil; and a rotor portion having a rotation shaft rotatably supported by the...
7740407 Hydrodynamic bearing type rotary device and recording and reproduction apparatus including the same  
To prevent air from being trapped inside a bearing and causing the bearing to have oil film rupture and NRRO to deteriorate. In a hydrodynamic bearing, a first lubricant reservoir is provided in a...
7726882 Dual seal for optimized performance  
A fluid dynamic bearing having a hub, a sleeve, and a sealing arrangement comprising a first capillary seal substantially retaining a first fluid and a second capillary seal comprising a second...
7712963 Fan, motor and bearing structure thereof  
A bearing structure which is cooperated with a shaft and is disposed in a bearing tube comprises an oil bearing and a cylindrical sealing member. The oil bearing has an axial hole. The shaft passes...
7698064 Gas supported inertial sensor system and method  
An inertial navigation system is provided. The system includes a sensor block, an outer shell that substantially surrounds the sensor block and a plurality of gas pads connected to the outer shell...
7674043 Hydrodynamic bearing rotary device  
An object of the present invention is to provide a hydrodynamic bearing type rotary device which can improve rotation performance, suppress a friction torque, and reduce power consumption of motor,...
7654744 Fluid dynamic bearing mechanism for a motor  
A fluid dynamic bearing mechanism for a motor (1) suitable for use in a hard disk drive and having a compact and thin shape, high bearing rigidity, and high rotating accuracy, and which securely...
7614791 Bearing unit and motor using the same  
A bearing unit wherein a radial bearing for bearing a shaft in the circumferential direction of the shaft and a metallic housing provided with an attaching section are integrated with each other by...
7591591 Dynamic bearing device  
It is an object to improve bearing rigidity in a thrust direction at high temperatures and reduce a torque at low temperatures. An axial member is arranged in such a manner that an outer...
7527432 Hydrodynamic bearing type rotary device and recording and reproduction apparatus including the same  
A hydrodynamic bearing type rotary device which allows bubbles in a lubricating fluid to be surely discharged from a bearing portion is provided. A hydrodynamic bearing mechanism 40 of the...
7521830 Fan motor and oil-leak proof bearing system thereof  
The invention relates to an oil-leak proof bearing system, and the system includes a bearing, an oil-leak proof cover and a rotor shaft. The center portion of the oil-leak proof cover defines a...
7510331 Bushing structure for motor  
A bushing structure for a motor has a shaft tube, a fastener and a bushing disposed on a hub. A bushing is disposed a bearing therein so that the shaft of the rotor penetrates through the bearing...
7510330 Fluid dynamic bearing and a storage disk drive with a spindle motor having the fluid dynamic bearing  
A hydrodynamic bearing having a bearing sleeve, a rotational shaft supported for rotation by the bearing sleeve, a bearing gap formed between the bearing sleeve and the rotational shaft,...
7494283 Hydrodynamic bearing assembly  
A hydrodynamic bearing assembly (10) includes a bearing sleeve (11) defining a receiving chamber (113) therein, a bearing (12) received in the receiving chamber of the bearing sleeve, a sealing...
7416341 Capillary reservoir for FDB motors  
For a motor having fluid dynamic bearing(s) defined by surfaces of relatively rotatable motor members, aspects include providing a capillary reservoir between relatively irrotatable surfaces. The...
7357577 Hydrodynamic bearing system having means for measuring the filling level of the lubricant  
The invention relates to a hydrodynamic bearing arrangement, particularly for a spindle motor to drive the platters of a hard disk drive, the bearing arrangement having a shaft and a bearing bush,...
7347625 Grooving in FDB motor capillary seal  
For motors using liquid lubricated bearing surfaces, shock resistant capillary seals and lubricating liquid reservoirs are provided. The seals and reservoirs are formed by the radially opposing...
7296801 Anti-leakage device for lubrication oil in a fan  
An anti leakage device of lubrication oil for a fan includes a hub seat, a sleeve and a hub. The sleeve is provided on the hub seat and has a bearing therein to form an oil storage part for...
7284910 Capillary seal with flow restrictors  
A disk drive motor having a capillary bearing seal is provided. In one embodiment, a disk drive motor includes a stationary assembly and a rotating assembly having a fluid dynamic journal bearing...
7258488 Fluid bearing module  
A fluid bearing module has a bearing seat, a bearing, a deflecting member, and an impediment. The bearing seat has a capacity with an opening. The bearing in the capacity has a hollow space for the...
7241051 Radial capillary seal for fluid dynamic bearing motors  
A seal with a primary axis lying in the radial direction so that the fluid bearing is primarily extending in the axial direction between the rotating shaft and surrounding sleeve is disclosed. The...
7229214 Fluid dynamic bearing unit  
A fluid dynamic bearing unit includes a bearing housing (20) axially defining therein a bearing hole (21), a rotary shaft rotatably received in the bearing hole with a radial space formed between...
7226212 Shield and sealing method for a hydrodynamic bearing  
A hydrodynamic bearing system, having a bearing sleeve and a shaft inserted into an inner cylindrical bore of the bearing sleeve. A bearing gap is formed between the shaft and the bearing sleeve,...
7220055 Air bearing having unitary housing  
An air bearing including a unitary, i.e., single piece, housing, which removes the need for an insert, is disclosed. The air bearing may include a shaft opening longitudinally extending through the...
7204642 Spindle motor  
A spindle motor (80) is composed of a sleeve (5), a shaft (1) that is rotatably sustained by the sleeve (5) in a radial direction through a dynamic pressure bearing (20) containing lubricant (12),...
7201379 Seal assembly, cartridge, and method  
A seal assembly and cartridge for sealing a space between a rotating member and a stationary member in which a sleeve extends around the rotating member and with the inner surface of the sleeve...
7153028 Hydrodynamic bearing system  
The invention relates to a hydrodynamic bearing system particularly for the rotary bearing of spindle motors to drive the platters in hard disk drives which comprises at least one inner bearing...
7147377 Crush ring to seal the counter plate on hydrodynamic bearing  
A fluid dynamic bearing including a shaft rotating within a sleeve and a thrust plate or the like supported at an end of the shaft rotating in a recess defined with the sleeve. The thrust plate...
7131770 Hydro fill controlling shield and sleeve for a hydrodynamic bearing  
A hydrodynamic bearing system, having a bearing sleeve and a shaft inserted into an inner cylindrical bore of the bearing sleeve. A bearing gap is formed between the shaft and the bearing sleeve,...
7118278 Hydrodynamic bearing, manufacturing method of hydrodynamic bearing, spindle motor provided with hydrodynamic bearing and disk drive device provided with this spindle motor  
A suitable the inner point is set on a vapor-liquid face of lubricating fluid formed in a composite capillary seal section that utilizes capillary force and rotational centrifugal force acted on...
7111988 Dustproof structure for a sleeve bearing  
A dustproof structure for a sleeve bearing includes an axial tube, a sleeve bearing and a dustproof cushion. The axial tube accommodates the sleeve bearing which bears an axial hole through which a...
7059773 Hydrodynamic bearing, spindle motor and hard disk drive  
The invention relates to a hydrodynamic bearing having a shaft, a bearing sleeve that encloses the shaft with a short radial spacing forming a concentric bearing gap, and an equalizing volume that...
7059772 Hydrodynamic bearing, spindle motor using the same and disc drive apparatus provided with spindle motor  
The present invention relates to a hydrodynamic bearing supporting a shaft and a sleeve so as to relatively rotate with respect to a rotation axis. In accordance with one example of the present...
7056026 Capillary seal with fill pool  
Improved capillary sealing is provided for withstanding shock events, vibration and evaporation, for use with fluid dynamic bearings. In an aspect, minimal axial space is occupied by a fluid...
7048444 Fluid lubricated bearing device  
An inner space of a housing sealed with a seal member as well as internal pores of a bearing member (pores in a porous structure) are filled with a lubricating oil without the presence of air, so...
7008112 Hydrodynamic bearing device  
A hydrodynamic bearing device with reduced costs is provided. A housing with a bearing sleeve housed therein is formed by drawing. A cup shaped thrust member is positioned in a bottom part of the...
6991376 Low profile fluid dynamic bearing motor having increased journal span  
A fluid dynamic bearing motor is described. In one embodiment, the fluid dynamic bearing motor includes a stationary shaft having a first end coupled to a first plate and a second end coupled to a...
6969200 Bearing supporting structure  
A bearing supporting structure includes a bearing sleeve provided on a motor stator unit for supporting a bearing therein and a coil therearound. The bearing sleeve is provided on an inner wall...
6900568 Fluid dynamic bearing motor configured with an integrated counterplate to contain bearing fluid  
A fluid dynamic bearing motor assembly is described. In one embodiment, the assembly includes a shaft, a sleeve configured to rotate about a rotational axis, and a counterplate attached to the...
Matches 1 - 50 out of 150 1 2 3 >