Bearings inventions 01/06

20060018571 - Air bearing structure and linear driving device using said air bearing structure: The length of the bearing surface in the movable portion which moves linearly is larger than the length of the bearing surface in the fixed portion by the stroke of the movement. With this configuration, the bearing surface on the side of the fixed portion always opposes the bearing surface...

20060018572 - Linear guide unit: The invention proposes a linear guide unit comprising a guide carriage (1) that is mounted through rollers (3) for sliding on a guide rail (2), and further comprising a roller chain (8) comprising a cage (8a) for receiving the rollers (3), said cage being formed by spacers (16) arranged between...

20060018573 - Oil dynamic bearing, motor supported on oil dynamic bearing and disk drive carrying the motor: An oil dynamic bearing, a motor and a disk drive adapted to be reduced in both size and thickness are disclosed. The oil dynamic bearing (B) includes at least two bearing portions (B1, B2), each having a bearing near end nearer to the rotational axis or the bearing center of...

20060018575 - Hydrodynamic fluid film bearing and bearing housing with cooling capacity: A hydrodynamic fluid film bearing for supporting a rotation shaft of a turbo or rotary apparatus includes a sleeve having a circular inner opening for receiving a rotation shaft therein, at least one metallic foil member of arc shape having one end fixed to the inner surface of the sleeve...

20060018574 - Hydrodynamic journal bearing: A journal foil bearing comprising a retaining member having an inner surface which defines a shaft opening within which a rotatable shaft is receivable for rotation; and a foil assembly affixed to and lining the inner surface and comprising a plurality of foil sub-assemblies each subtending a circumferential segment, of...

20060018576 - Hydrodynamic bearing device, spindle motor and hard disk driving apparatus having the hydrodynamic bearing device: A hydrodynamic bearing device includes a sleeve having a bearing bore substantially at a center portion, a shaft inserted in the bearing bore in a rotatable manner, a thrust plate for supporting an end of the shaft in the thrust direction and an upper retaining portion that has an opening...

20060018577 - Apparatus for forming an extended nip: Apparatus for forming an extended nip between a mating roll and a shoe roll for treating a product web, in particular a paper web, the shoe roll having a stationary support and a flexible roll cover which can rotate around the beam and which, in the region of the extended...

20060018578 - Axial bearing: The invention relates to a thrust bearing, in particularl for a turbo charger, having an essentially disc shaped bearing body (10) with a central through opening (12) for a shaft, having at least one bearing surface (14) surrounding the through opening (12) for a collar which is placed on the...

20060018579 - Sealed rolling bearing: A sealed rolling bearing is proposed which makes it possible to reduce the torque loss while ensuring high sealing performance. Seal lips of seal members secured to the outer ring of the bearing at both ends thereof are in sliding contact with both ends of the outer periphery of the...

20060018580 - High-precision spindle assembly for a davenport automatic screw machine: A spindle assembly (20) adapted to be mounted on the rotatable head (21) of a Davenport® multi-spindle automatic screw machine, broadly includes a one-piece outer spindle (38), a seal member (39), a front bearing assembly (40A, 40B, 40C), a front bearing retainer nut (41) forming with the seal member a...

20060018581 - Bearing assembly: A bearing assembly which spaces bearing elements in an unequal relationship from one bearing element pocket to the next. The spacing minimizes the likelihood that the bearing elements will rest in the exact same location on an inner and outer race to reduce the potential for false brinelling. The net...

20060018582 - Bearing having thermal compensating capability: A tapered roller bearing for use in transmission cases made from aluminum alloy or other lightweight materials where the transmission contains a steel shaft which is supported in the case on two directly mounted tapered roller bearings, so that the two bearings confine the shaft both radially and axially. To...

20060013515 - Linear roller bearing: A linear roller bearing is provided having a guide carriage (1) which can be mounted on a guide rail (2) in a rolling manner via roller bodies (4). The guide carriage is provided with at least one continuous roller body channel (3) for the roller bodies (4). The roller body...

20060013516 - Rocking hinge bearing system for isolating structures from dynamic/seismic loads: A rocking hinge bearing system is provided. The rocking hinge bearing system comprises a first base plate, a second base plate, and a compressible member. A pintle mechanism is required to align the first base plate, the second base plate and the compressible member and to prevent relative horizontal movement...

20060013517 - Linear guide: In a linear guide, a separator is interposed between each pair of adjacent balls. The separator has a separator main body interposed between the adjacent balls, and arm portions provided at end portions of the separator main body, which are arranged in the direction of width of each of rolling...

20060013518 - Sleeve bearing for railway traction motor: An improved sleeve bearing for locomotive traction motor that provides additional lubrication over and above that of the one central wick currently used. The sleeve bearing is provided with a recirculation system comprised of either at least two additional wicks located near the 6:00 operating location or multiple oil communication...

20060013519 - Four-point contact ball bearing: Let d designate the diameter d of the ball (17) in a four-point contact ball bearing (11). Let Dp denote the diameter of a pitch circle of plural balls (17) disposed between both raceway surfaces (13a, 15a). Let L1 designate an inter-ball distance between the adjacent balls (17) on the...

20060013520 - Roller thrust bearing: There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing including at least two radially arranged rows of rollers and a cage...

20060013521 - Forged roller: A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. The tools and staged forming create an improved roller with...

20060008188 - Disc spring centering device for squeeze film dampers: A damper film bearing assembly for supporting a rotatable shaft includes a bearing housing having a longitudinal opening passing therethrough for receiving the rotatable shaft. The bearing housing also has at least one radial recess formed in an outer surface thereof, the recess having a floor. The assembly further includes...

20060008189 - Fluid bearing unit and spindle motor using the same: The present invention provides a fluid bearing unit capable of achieving lower torque and lower current consumption in comparison with a conventional bearing unit, and a spindle motor using the same. The present invention employs an ester derived from 1,5-pentanediol having one alkyl side chain and saturated monovalent fatty acid...

20060008190 - Fluid dynamic bearing device: A fluid dynamic bearing device is disclosed in which, in the materials used for the sleeve of the fluid dynamic bearing device, particles of free-cutting elements and free-cutting alloys added to iron-based free-cutting steel, ferrite-based free-cutting stainless steel, and so on are reduced in size to about 0.1 to 0.5...

20060008191 - Dynamic bearing device: A dynamic bearing device includes: a housing; a bearing sleeve arranged inside the housing; a shaft member rotating relative to the housing and the bearing sleeve; and a radial bearing portion supporting the shaft member radially in a non-contact manner by a dynamic pressure action of a lubricant generated in...

20060008192 - Cage for ball bearing: In the cage, on opposing edges of an outer circumferential opening of each of some of cage pockets, guiding faces for limiting the inward displacement in the radial direction of each of balls for a pitch circle diameter are provided; and on opposing edges of the inner circumferential opening of...

20060008193 - Rolling part and power transmission part: There is provided a rolling component formed of a steel material of the medium carbon steel level that provides a rolling life improved to be comparable to that of bearing steel and also provides improved characteristic against surface-cracking, and a power transmission component including the rolling component. To achieve this,...

20060002637 - Profiled rail guide: In a profiled rail guide comprising a traveling carriage that is supported through a carrier body (3) on a guide rail (1) for sliding along the guide rail (1) on raceways (2) that are arranged on two long sides of the guide rail (1), the carrier body (3) comprises at...

20060002640 - Composite dynamic bearing assembly and manufacturing method thereof: A composite dynamic bearing assembly and manufacturing method thereof. The composite dynamic bearing assembly includes a bearing bracket and a bearing. The bearing bracket comprises an internal space. The bearing, disposed in the internal space of the bearing bracket, includes a plurality of bearing blocks. Each bearing block has a...

20060002638 - Fixed shaft type fluid dynamic bearing motor: A fixed shaft type fluid dynamic bearing motor having two interfaces of a lubricating fluid. A channel leading from near the top end of the inner periphery of a rotating sleeve to near the periphery of the bottom of the sleeve is formed in the sleeve. The lubricating fluid flows...

20060002641 - Fixed shaft type fluid dynamic bearing motor: A fixed shaft type fluid dynamic bearing motor having two interfaces of a lubricating fluid, in which a channel leading from near the top end of the inner periphery of a rotating sleeve to near the periphery of the bottom of the sleeve is formed in the sleeve. The lubricating...

20060002639 - 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), and a hub (3) that is fixed to the shaft (1). The hub (3) has a...

20060002642 - Fluid dynamic pressure bearing apparatus: A fluid dynamic pressure bearing apparatus includes a radial dynamic pressure bearing formed in a gap portion between a bearing member and a shaft member. The apparatus also includes a thrust dynamic pressure bearing having a first thrust bearing portion formed between a top surface of the thrust plate and...

20060002643 - Bearing shell, bearing, and method for the production of bearing shells: Disclosed is a bearing shell comprising a metallic supporting material which is coated with at least one sliding bearing material. At least one oil-bearing groove is engraved within the rear side of the supporting materials. According to a method; a band made of composite material is produced by coating one...

20060002644 - Bearing unit for wheel and method of manufacturing the bearing unit: Respective constituent members of a wheel bearing unit 5 are assembled and also a cover 74 is fixed to an inner end portion of an outer ring 6. The wheel bearing unit 5 is fitted to a turning machine 38 in a state that a space in which an encoder...

20060002645 - Bearing house: A bearing housing 1 is designed to accommodate a bearing 4 within its outer walls 3. The bearing 4 upon rotation generates a centrifugally dispersed oil spray from its peripheral edge 7 and this spray is collected upon a facing surface of the wall 3. An out-take 6 has a...

20060002646 - Tapered roller bearing: A tapered roller bearing 1 comprises an inner ring 2, an outer ring 3, a plurality of tapered rollers 4 rollably disposed between the inner and outer rings, and a cage 5 for holding the tapered rollers at predetermined circumferential intervals. In this tapered roller bearing, the roller coefficient {y=(the...

20060002647 - Tapered roller bearing: A tapered roller bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings (2, 3) and a cage (5) for holding the tapered rollers (4) at predetermined circumferential intervals, wherein (the circumferential length on the...

20060002648 - Tapered roller thrust bearing with favorable load distribution: A tapered roller thrust bearing with more optimally distributed loading on each tapered rolling element to reduce maximum tapered roller contact stress in a cost effective and efficient manner is provided. The bearing may include an upper plate, a bottom plate having a bottom surface, and a plurality of tapered...