Bearings inventions 02/06

20060039632 - Dynamic pressure bearing assembly: The present invention discloses an improved dynamic pressure bearing assembly, comprising a bearing, an axial hole passing through the bearing, a plurality of aslant planes milled by a milling machine and extended along the axial direction and disposed on the periphery of the axial hole, and a dynamic pressure generating...

20060039634 - Fluid dynamic bearing motor attached at both shaft ends: A fixed shaft type fluid dynamic bearing motor having two interfaces of a lubricant at least, in which a channel leading from near the outer region of a rotating sleeve top end to near the periphery of the bottom of the sleeve is formed in the sleeve. The lubricant near...

20060039633 - 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 the rotary shaft and the bearing housing, and lubricant filled in the radial space. A ventilating path (25)...

20060039635 - Hydrodynamic bearing arrangement for an electric motor: The invention relates to a hydrodynamic bearing arrangement for an electric motor, particularly for a spindle motor to drive the platters of a hard disk drive. The bearing arrangement comprises a shaft, a bearing bush and a thrust plate disposed fixedly on the shaft, the shaft and the thrust plate...

20060039636 - Fluid dynamic bearing motor attached at both shaft ends: A fixed shaft type fluid dynamic bearing motor having two interfaces of a lubricant at least, in which a channel leading from near the outer region of a rotating sleeve top end to near the periphery of the bottom of the sleeve is formed in the sleeve. The lubricant near...

20060039637 - Dynamic pressure bearing device: The present invention discloses a dynamic pressure bearing device, comprising a bearing, an axial hole passing through the bearing, a plurality of dynamic pressure generating grooves extended along the axial direction and disposed on the periphery of the axial hole. The dynamic pressure generating groove comprises a fluid lubricating medium...

20060039638 - Sintered oil-impregnated bearing and manufacturing method thereof: The disclosed invention provides a sintered oil-impregnated bearing equipped with a bearing hole having a clearance structure, in which a clearer boundary is formed between the bearing surface and the clearance surface, and a manufacturing method thereof. In a bearing hole of a radial bearing, a bearing surface and another...

20060039639 - Bearing device with sensor and rolling bearing with sensor: The present invention relates to a bearing apparatus with a sensor and a rolling bearing with a sensor used to movers such as automobiles or railway carriers, facility machines of equipment, or machine tools. One of the embodiments comprises a sensor detecting conditions of the rolling bearing, a ring-shaped sensor...

20060039640 - Bearing unit for railway carriages: Emergence of fretting worn powder is to be suppressed, and intrusion of the worn powder that has emerged into an internal area of the bearing. A ring spacer is interposed between an end face of an inner ring of the bearing to be mounted on a wheel axle, and an...

20060039641 - Axial tapered roller bearing: A axial tapered roller bearing comprising an upper pressure disk, a lower pressure disk and tapered rollers between the pressure disks which are kept at uniform intervals from one another in the circumferential direction by a disk cage. The inner surface of the one pressure disk is a circulation path...

20060034552 - Linear guide apparatus: A linear guide apparatus has a rail having a rail side rolling element raceway groove, a slider having a slider side rolling element raceway groove, pluralities of rolling elements disposed between the rail and the slider, a rolling element return path in the slider, a curved path in an end...

20060034553 - Linear guide bearing apparatus: It is a linear guide bearing apparatus comprising a slider 2 that has a slider body 2A provided with a holes 7, into which a circulating sleeve 8, whose inside space serves as a rolling-element path 8a, is fitted, and also has an end cap 9, which has a curved...

20060034554 - Fluid dynamic bearing: A fluid dynamic bearing includes a bearing member (30) axially defining an inner bearing hole therein, and a spindle shaft (20) rotatably received in the bearing hole with a bearing clearance formed between an inner periphery of the bearing member and an outer periphery of the spindle shaft. Lubricant is...

20060034555 - 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 pressure bearing device, a first and a second ring-shaped member are fixedly fitted to an outer peripheral surface of a rotating...

20060034556 - Thrust bearing assembly: The subject invention provides a thrust bearing assembly having only three thrust flanges in total. One portion of the thrust bearing assembly comprises a main bearing having an arcuate bearing shell with a concave inner surface and a convex outer surface. A thrust washer having hydrodynamic features abuts one of...

20060029303 - Linear guide bearing apparatus: In a linear guide bearing apparatus in which a lubricant feeding member 20 attached to an axial end of a slider 2 and making sliding contact with the rolling body rolling grooves 3 of a guide rail 1 to feed a lubricant thereto is of a porous material containing the...

20060029304 - Synchronous system for a three-stage ball bearing slide: A synchronous system for a three-stage ball bearing slide includes a carrier track being inserted into a fixed track to carry a mobile track. Both of the mobile and the carrier tracks engage in reciprocal movement along the same axis direction in relation to the fixed track. A dancer is...

20060029305 - Linear guide: A slider has a slider main body which has a circulation sleeve whose inner portion forms a rolling element passage by being inserted into a hole penetrating in an axial direction, an end cap which has an outer peripheral track face of a direction changing passage in a curved shape...

20060029307 - Linear guide apparatus and method for assembling the same: A slider is formed by a metallic main body, a synthetic resin-made frame, and a pair of end caps. The frame is detachably fitted to outer sides of the main body. Ball rolling grooves are provided in the main body. Return paths and inside grooves of a direction changing path...

20060029306 - Linear motion guide unit: A linear motion guide unit is disclosed, in which components required for a slider are all joined together with no fasteners including bolts, screws, and so on used conventional assembly operations, but mutual fit-engagement of any components with their mating counterparts. This allows reducing the number of components to cope...

20060029308 - Roller guide for adjustable vehicle seats: A roller guide for adjustable vehicle seats. The roller guide includes at least one guide rail which is at least partially open at the side and at least two rollers which roll in the guide rail and are connected to the vehicle seat via at least one axle. At least...

20060029309 - Device for holding linear guide rail: A device for holding a linear guide rail R along a linearly extending vertical reference surface L formed on an installation surface f provided with a vertical counter surface F, including a pressing plate 5, and first and second pressure contacting piece 7 and 6. The pressing plate 5 has...

20060029311 - 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, which, supported by a lubricant circulating between their bearing surfaces, are rotatable with respect to each other, a...

20060029310 - Loadbearing platform with fluid support, isolation and rotation: Device for fluidic support and bi-directional rotation of an item in a process chamber where the operating fluid is compatible with the process. The device has a rotable load bearing platform with a load bearing interface between it and a base in the chamber. Fluid, which may be supercritical fluid,...

20060029313 - 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 is iron, an iron alloy, copper, a copper alloy or a mixture thereof. This sintered metal has...

20060029312 - Hydrodynamic bearing device, motor and disc driving apparatus: An object of the present invention is to provide a hydrodynamic bearing device having a high reliability which can achieve miniaturization and reduction of weight and thickness, and a motor and a disc driving apparatus using the same. In the hydrodynamic bearing device according to the present invention, a sleeve...

20060029314 - Seal for a bearing assembly: A bearing assembly for a wheel assembly. In some constructions and in some aspects, the bearing assembly includes a housing defining a cavity therethrough, a first bearing cone positioned within the cavity and a second bearing cone positioned within the cavity and spaced from the first bearing cone. A first...

20060029316 - Bearing apparatus for a wheel of vehicle: A vehicle wheel bearing apparatus which limits hoop stress generated in the inner ring during caulking, to below a predetermined level, can improve durability and reliability of the inner ring. Radial expansion of the outer circumferential surface of the inner ring, before and after said plastic deformation, is measured so...

20060029315 - Connection device for connecting a rolling contact bearing to an external body: Connection device (100) for connecting a contact rolling bearing (1) to an external body (7), the connection device (100) presenting a peripheral connecting outline (5), which is obtained around a race (3) of the contact rolling bearing, and a complementary connecting outline (6), which is obtained inside the external body...

20060029317 - Bearing structure: The present invention is intended to provide a bearing structure in which a reference side bearing portion and an aligning side bearing portion can be installed with axial centers nearly aligned to each other even when the axial center of rotary shaft is inclined, and it is possible to obtain...

20060029318 - Rolling bearing of ceramic and steel engaging parts: A roller bearing having two cooperating rolling parts of which one is of ceramic and the other of a steel. The steel part is of such structure and/or material and/or is so produced to cause residual compressive stresses to form beneath the contact surface of the steel part, at least...

20060023977 - Coupled structure of rolling elements and a roller bearing using the same: A coupled structure of rolling elements which is capable of adequately supplying a lubricating oil component to the rolling elements without waste of the lubricating oil component, and a bearing using the coupled structure. In the coupled structure of rolling elements (1) including a coupled assembly (3) of rolling elements...

20060023978 - Linear device: A linear device has an essentially rod-shaped functional unit and a functional unit that at least partially encompasses the rod-shaped functional unit and includes a main body and at least one end plate unit that rests with a contact surface against the main body in which a lubrication groove is...

20060023979 - Linear sliding guide: The invention concerns a linear sliding guide comprising a shaped rail (1) which extends in the longitudinal direction and which is of a given cross-section with sliding surfaces, and a slider (2) which is axially displaceably on the sliding surfaces of the shaped rail, wherein provided on the slider (2)...

20060023980 - Rolling guide unit: To raise the degree of flexibility in design, simplify the control of lubricating oil and give a low sliding resistance to the rolling elements, the rolling guide unit provided with a cylindrical member through which a rail passes for it to slide on, raceway paths constituted of a combination of...

20060023981 - Gas dynamic pressure bearing, motor having the gas dynamic pressure bearing, and disk drive having the motor: A gas dynamic pressure bearing comprises a shaft, a sleeve whose inner peripheral surface is opposed to an outer peripheral surface of the shaft through a micro-gap, and a substantially cylindrical hub which applies a surface pressure to an outer side of the sleeve and which is fitted to the...

20060023982 - Hydrodynamic bearing device: A hydrodynamic bearing device in which an introducing minimum clearance for causing capillary phenomenon is formed from the location in the proximity of the opening of a communicating path to the open end of the bearing hole in between the cover and the end face on the open end of...

20060023984 - Bearing apparatus for a driving wheel of vehicle: A bearing apparatus for a vehicle driving wheel which prevents generation of stick-slip noise as well as fretting wear to improve durability of the bearing apparatus has an outer member (10) formed with double row outer raceway surfaces (10a, 10a) on its inner circumferential surface. An inner member (1, 27)...

20060023983 - Connection device for connecting a rolling contact bearing to a wheel hub unit: Connection device for a rolling contact bearing which is to be connected to a wheel hub, the connection device being suitable for connecting an inner race of the bearing to a cylindrical body of the wheel hub, and presenting a peripheral connecting outline which is obtained around the cylindrical body...

20060023985 - Adaptive bearing system containing a piezoelectric actuator for controlling setting: The setting of opposed bearings located between two machine components is controlled with at least one piezoelectric actuator located such that it axially displaces a race of one of the bearings....

20060023986 - Thrust roller bearing and method of manufacturing the same: A thrust roller bearing includes a race and a cage that retains a plurality of rollers and is disposed on the race. The race includes: an annular plate portion defining a raceway for the plurality of rollers, a flange that is extended in an axial direction thereof and provided at...