| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 384445000 |
Antifriction bearing
| 1831 |
| 384129000 |
Plain bearing
| 659 |
| 384100000 |
Fluid bearing
| 390 |
| 384125000 |
Resilient bearing surface
| 19 |
| 384099000 |
Hydraulic or pneumatic bearing support
| 17 |
| 384126000 |
Plural bearings one plain and one antifriction
| 9 |
| 384097000 |
Water lubricated propellor shaft or well shaft | 5 |
| 20150071577 | Shaft Bearing Support Assembly For Waterborne Equipment - The present invention relates to a shaft bearing support assembly for waterborne equipment, including: at least one bearing; at least one tapered forcing ring; a housing; and at least one adjusting device. The outer circumference of each of the at least one bearing is surrounded by one tapered forcing ring which is arranged inside the housing. The at least one adjusting device communicates with each of the at least one tapered forcing ring. A force generated by the at least one adjusting device is transmitted to the at least one tapered forcing ring to longitudinally move the at least one tapered forcing ring, causing the at least one bearing to constrict radially and to adapt to a desired clearance over a diameter of a shaft. | 03-12-2015 |
| 20100034491 | SYSTEM, METHOD AND APPARATUS FOR SCALE RESISTANT RADIAL BEARING FOR DOWNHOLE ROTATING TOOL COMPONENTS AND ASSEMBLIES - Radial bearing designs for electrical submersible pump components and assemblies reduces scale build up on the bearing components. Scale resistant and abrasive resistant sleeves and bushings may be used. The axial lengths of the sleeves are kept within the axial length of the AR bushings, or vice versa, with regard to the axial stroke of one component relative to the other. In addition, sharp corners may be formed on the sleeve or bushing axial faces at their respective interfacing diameters. As the shaft moves axially, the sharp corner on one component scrapes off the scale on the other component. This design discards the scale rather than force it into the clearance between the sleeve and bushing. Small spacer sleeves also may be used adjacent the sleeves so that scale build up on the spacer sleeves is farther away from the bearing to reduce scale-related problems. | 02-11-2010 |
| 20110182535 | Motor Shaft Vibration Isolator for Electric Submersible Pumps - A vibration dampening system for a motor shaft in an ESP uses axially extending arms in one or opposed directions from a fixed portion of a motor shaft bearing. The weights can have their location adjusted to tune the device to the natural frequencies of the rotating shaft and to add an ability to address vibration in more than one plane. Openings are provided in the support for the arms that hold the weight so that arm vibration can create turbulence and improve heat dissipation in the oil for improved bearing life. Bearing cost can be reduced using more economical materials without sacrificing bearing life. | 07-28-2011 |
| 20120076448 | Keyless Bearing Sleeve for Subterranean Applications - A sleeve is retained to a shaft without the use of a keyway through at least one end connection that has a preferably flat face with one or more projections from the flat face. Rounded projections are preferred. The projections go into shape matching depressions on the sleeve. Alternatively the sleeve can have the projections and the end retainer can have the depressions. The end retainer is spring loaded for axial deflection in the event of an over-torque. If that happens there is planned for slippage until the condition is alleviated at which point the spring bias is able to again match a projection to a depression for continuing tandem driving of the shaft and the sleeve. The sleeve is preferably carbide and resides in a carbide bushing. | 03-29-2012 |
| 20130315516 | BEARING ASSEMBLY FOR A MARINE TURBINE SHAFT, AND MARINE TURBINE INCLUDING SUCH A BEARING ASSEMBLEY - To recover the axial forces transmitted by a rotating shaft, a bearing assembly includes a plurality of distributed bearing units. Each bearing unit comprises: a stationary base; a resilient member having a stationary portion and a portion that is completely movable in a main direction of the forces to be supported; and a bearing surface that defines, together with the shaft, a water film. The bearing surface is connected to the movable portion. The minimum radius of the bearing surface is between 1 m and 3 m. The resilient member and the base define at least one water chamber. A plurality of ducts are arranged so as to connect the chambers together, thereby defining a closed circuit. | 11-28-2013 |
| 384092000 |
Roller drill bit | 4 |
| 20090232428 | TEXTURING OF THE SEAL SURFACE FOR A ROLLER CONE ROCK BIT - Surface texturing is employed to modify the topography of one or more surfaces (radial or cylindrical) of the sealing system for a roller cone rock bit. The surface texturing results in a dimpled surface which retains additional lubricant helpful in reducing friction in the boundary and mixed lubrication regimes. Shot peening is disclosed as one method for texturing the desired surface. | 09-17-2009 |
| 20140072249 | METHODS OF OPERATING BEARING APPARATUSES - In an embodiment, a bearing apparatus comprises a first bearing assembly including a plurality of circumferentially-spaced first bearing elements each of which includes a first bearing surface. The bearing apparatus further includes a second bearing assembly including a plurality of circumferentially-spaced second bearing elements each of which includes a second bearing surface oriented to engage the first bearing surfaces of the first bearing assembly during operation. At least one of the second bearing elements may be circumferentially spaced from an adjacent one of the second bearing elements by a lateral spacing greater than a lateral dimension of the at least one of the second bearing elements. | 03-13-2014 |
| 20100284636 | AIR CIRCULATION PORTS IN ROTARY ROCK BIT JOURNAL BEARING - A thrust bearing system for a roller cone rock bit includes at least one roller cone disposed on a leg having an air channel therethrough, the thrust bearing system including a primary thrust bearing surface on the leg configured to contact a corresponding primary bearing surface on the roller cone, wherein the primary thrust bearing surface on the leg includes at least one air circulation port in fluid communication with the air channel. The thrust bearing system further includes a secondary thrust bearing surface on the leg configured to contact a corresponding secondary bearing surface on the roller cone, wherein the secondary thrust bearing surface on the leg includes at least two air circulation ports located at specified locations in the secondary bearing surface and in communication with the air channel, and wherein a first circulation port is located in an upper half of the secondary thrust bearing surface and a second circulation port is located in a lower half of the secondary thrust bearing surface. | 11-11-2010 |
| 20140301679 | BEARINGS FOR DOWNHOLE TOOLS, DOWNHOLE TOOLS INCORPORATING SUCH BEARINGS, AND METHODS OF COOLING SUCH BEARINGS - Bearings for downhole tools including a first bearing member and a second bearing member, at least one of the first and second bearing members having a channel formed therein. Methods of cooling bearings of downhole tools comprise flowing a fluid within a channel formed in at least one bearing member. Heat is transferred from at least the at least one bearing member to the fluid. The fluid is flowed away from the at least one bearing member. | 10-09-2014 |
| Entries |
| Document | Title | Date |
|---|
| 20080219605 | Bearing Arrangement for Heavy Duty Marine Transmission - A bearing arrangement to reduce the effects of thermal expansion in a marine transmission includes a pinion gear thrust bearing, a clutch shaft thrust bearing, a shaft roller bearing and a thrust washer. The clutch shaft thrust bearing is retained on one end of a clutch shaft and the shaft roller bearing is retained on the other end of the clutch shaft. A pinion gear is rotatably retained on the clutch shaft. The pinion gear thrust bearing is retained on the pinion gear with a bearing retainer. The thrust washer is retained on the bearing retainer. An end of the clutch shaft thrust bearing rotates relative to the thrust washer and makes contact therewith. The length of thermal expansion in the transmission housing is limited to the distance between the opposing ends of the two thrust bearings. | 09-11-2008 |
| 20080240631 | MOVABLE BEARING AND SCREW DRIVE EQUIPPED WITH A MOVABLE BEARING OF THIS TYPE - A movable bearing for supporting a free end of a threaded spindle of a screw drive, which spindle extends in the direction of a longitudinal axis, has a bearing bush that is accommodated in a bearing housing. The bearing bush has at least one projection protruding outward in the radial direction, which engages in an associated recess of the bearing housing. | 10-02-2008 |
| 20090097787 | APPARATUS AND METHOD FOR A BEARING HAVING ANGULATED LOAD SLOT - A load slot bearing assembly includes an inner bearing member and an outer bearing member. The inner bearing member includes a first circular end, a second circular end, and a spherical outer bearing surface between the first and the second circular ends. The outer bearing member includes a first end surface, a second end surface, and an inner spherical bearing surface between the first and the second end surfaces. The inner spherical bearing surface is shaped to allow the inner bearing member to fit within the outer bearing member. The outer bearing member also has a load slot, which includes a first and a second end faces, and a cylindrical surface extending from one end of the outer bearing member inwardly. The cylindrical surface connects the first and a second end faces. The load slot also includes an angulated surface connecting the cylindrical surface with a portion of the inner spherical bearing surface. | 04-16-2009 |
| 20090208151 | BEARING SYSTEM AND METHOD FOR LUBRICATION - A bearing system includes a first bearing ring, a second bearing ring spaced radially outwards from the first bearing ring, and a bearing cage between the first bearing ring and the second bearing ring. The bearing cage includes a circumferential outer side, a circumferential inner side, and a plurality of circumferentially spaced retainer portions between an axially forward end and an axially trailing end. Roller elements are located in the plurality of retainer portions of the bearing cage. At least one fluid nozzle is axially spaced from the bearing cage for dispensing a fluid to the roller elements. | 08-20-2009 |
| 20100027924 | ROUND BEARING - A method for producing bearings comprising (i) an outer bushing, (ii) a bearing element based on cellular polyisocyanate polyadducts and (iii) a hollow inner bushing, wherein the outer bushing is produced by casting or injecting a reactive polyurethane system and adhesively bonding it to the bearing element. | 02-04-2010 |
| 20100034490 | Sculptured Bearing Liner and Bearing Assembly - A sculptured bearing liner includes an inner surface defining a cavity configured to receive a bearing, an outer surface and a reduced thickness portion extending from one of the inner surface and the outer surface. A bearing assembly includes a bearing liner having an inner surface, an outer surface, and a reduced thickness portion extending between the inner surface and the outer surface, the inner surface defining a cavity. The bearing assembly further includes at least one bearing disposed in the cavity. | 02-11-2010 |
| 20100177997 | RADIAL FOIL BEARING WITH SEALING FUNCTION - The present invention relates to a radial foil bearing including: a top foil having the following relationship: t≧0.1·D | 07-15-2010 |
| 20110274379 | ROTARY BEARING ARRANGEMENT - A rotary bearing that includes an inner race and an outer race the races are configured between a rotor and a housing body. At least one of the outer race and a mounting surrounding an outer race sleeve is at least one of clamped and fixed in a predetermined position on the housing body by at least one of a holding device and a locking device of a material damping structure. | 11-10-2011 |
| 20120128279 | METHOD AND APPARATUS FOR SETTING ROLLING ELEMENT BEARINGS IN ROLLING MILLS - A method for assembling a set of bearing assemblies | 05-24-2012 |
| 20120134609 | Coupling Structure and Method of Bearing For EPS Motor - Disclosed is a coupling structure of a bearing for an EPS motor to eliminate a gap caused by a tolerance between the bearing and a pocket of a housing of the EPS motor, thereby improving assembling precision and reducing noise, the coupling structure supporting rotation of a rotating shaft through the bearing coupled to a lower portion of the housing and including a bearing pocket bent upwards from a lower surface of the housing and having a cylindrical space to support an outer circumference of the bearing at an inner wall thereof, whereby a gap between the inner wall of the bearing pocket and the outer circumference of the bearing is eliminated by deforming the inner wall towards an inner circumference thereof by caulking, coupling force between the bearing and the housing can be increased, and thereby reliability in assembly and operation of the motor is improved. | 05-31-2012 |
| 20120170879 | REPOSITORY FOR A LUBRICANT - A repository for a lubricant includes a closed hollow base body for accommodating a lubricant. The base body has an inlet for filling in a lubricant, but no gas outlet. The base body further has expanding means which expand the base body from a compressed non-filled into an expanded filled state by filling the lubricant into the base body. | 07-05-2012 |
| 20120213458 | REPLACEABLE BEARING FOR A CONVEYOR ROLLER - The replaceable bearing for a conveyor roller is installed in a bearing housing, which is removably installed within the end of the conveyor roller. The bearing housing threads into a mating insert or sleeve, which is permanently installed within the end of the conveyor roller. Alternatively, the inside of the conveyor roller may be threaded and the bearing housing threaded directly into the conveyor roller, if roller wall thickness is sufficient. The outer face of the housing includes a plurality of notches so that a mating wrench engages the notches to thread the housing and its bearing into or out of the end of the roller. The replaceable bearing allows the bearing and its housing to be replaced while retaining the conveyor roller. | 08-23-2012 |
| 20120308167 | Suspension stop with reinforced sealing - A suspension stop device for a suspension arm of a vehicle, having a coil spring, having a stop bearing defining a rotation axis of the device and a bottom metal washer turning with respect to a top metal washer; a support piece for transmitting to the bottom washer forces exerted by the spring, the support piece comprising a support zone for the bottom washer; a cover covering the top washer and delimiting with the support piece a housing for the bearing, the cover being provided with a skirt covering a peripheral zone of the support piece and delimiting with the peripheral zone of the support piece an annular labyrinth, disposed radially outside the housing and connecting the housing to the outside; and an annular deflector delimiting with the skirt of the cover at least one top opening and with the support piece at least one bottom opening. | 12-06-2012 |
| 20130044969 | METHODS AND SYSTEMS FOR MICRO BEARINGS - A micro drive assembly may comprise a substrate, a micro shaft oriented in-plane with the substrate and at least one micro bearing to support rotation of the micro shaft. The micro shaft and micro bearing may be in or less than the micrometer domain. | 02-21-2013 |
| 20130084032 | Bearing Housing for an Engine with Stress and Stiffness Control - An apparatus comprises a bearing section capable of receiving bearings, a base, and a plurality of members. The bearing section and the base have a cylindrical shape and are substantially aligned centrally along an axis. The plurality of members extend between the bearing section and the base and have a length and a width. Each of the plurality of members has a side that is substantially non-perpendicular with respect to the bearing section and the base. | 04-04-2013 |
| 20130101242 | SEAL ARRANGEMENT - A seal arrangement, in particular for sealing a thin section bearing. Specifically, the invention relates to a seal of a thin section bearing such as may be used for mounting a swashplate of a helicopter. According to the invention, this seal arrangement has at least two elastomer bodies, each of which form one radial sealing lip. A support body is arranged axially between the at least two elastomer bodies. | 04-25-2013 |
| 20130156355 | REMOVABLE BEARING COVER - A bearing cover is provided for attachment relative to a bearing assembly. The cover includes a flange and a magnet associated with the flange. The magnet is configured to removably retain the bearing cover relative to the bearing assembly. | 06-20-2013 |
| 20130170774 | IRON-BASED METAL BEARING CAP TO BE CAST INTO LIGHT METAL MEMBER - An iron-based metal bearing cap according to the present invention to be cast as a core into a light metal member includes an arcuate portion which forms a bearing surface, left and right flange portions which are arranged and connected to opposite ends of the arcuate portion, and boss portions which are arranged to stand on the rear surfaces of the left and right flange portions and through which mounting bolts are inserted. The bosses are formed with grooves or projections. | 07-04-2013 |
| 20130188894 | Rotor Bearing For A Laboratory Centrifuge - The locking system, which is intended to axially secure the rotor ( | 07-25-2013 |
| 20130209010 | FRICTION DEVICE FOR A BEARING ASSEMBLY, BEARING AND BEARING ASSEMBLY COMPRISING SUCH A FRICTION DEVICE - A friction device ( | 08-15-2013 |
| 20130223772 | SCREWABLE BEARING HOUSING COVER FOR A SUPERCHARGING DEVICE - A bearing housing may have a bearing housing cover formed of metal. A first thread may be arranged on the bearing housing cover and a second thread may be arranged on the bearing housing and designed complementarily to the first thread so that the bearing housing cover may be screwed on and fixed on the bearing housing through a rotational movement. | 08-29-2013 |
| 20130322791 | SEALING DEVICE AND ROTARY BEARING THEREWITH - The invention relates to a sealing device ( | 12-05-2013 |
| 20140016887 | BEARING BRACKET AND SYSTEM FOR A MACHINE - A bearing system for a machine includes a bearing housing configured to constrain motion of a part within the machine, the bearing housing having a substantially circular cross-sectional shape. The bearing system also includes a bearing bracket configured to secure the bearing housing to the machine, the bearing bracket formed to cover more than a half and less than all of the circular cross-sectional shape of the bearing housing. | 01-16-2014 |
| 20140037232 | Mud-Lubricated Bearing Assembly with Mechanical Seal - In a mud-lubricated bearing assembly for a downhole motor, a mechanical seal is provided between the mandrel and the lower end of the bearing housing to prevent discharge of drilling fluid (mud) from the bearing assembly into the wellbore annulus. The mechanical seal is effected by mating wear-resistant annular contact surfaces provided on the mandrel and the bearing housing, with biasing means preferably being provided to keep the contact surfaces in sealing engagement during both on-bottom and off-bottom operational modes. The diverted drilling fluid passing through the bearings is redirected into the bore of the mandrel via ports through the mandrel wall to rejoin the main flow to the drill bit, such that substantially all of the drilling fluid flows through the bit. | 02-06-2014 |
| 20140105524 | DRIVING DEVICE HAVING AN ACTIVELY SUPPORTED DRIVE SHAFT - A driving device for an adjusting device of a motor vehicle is provided. The driving device comprises a housing or housing section which at least partially encloses components of the driving device and an electric-motor-driven drive shaft which extends in a longitudinal direction and which is axially supported on the housing or housing section at least via one end. An active bearing element is arranged between the housing or housing section and the drive shaft at at least one end of the drive shaft, said bearing element being suitable for acting on the drive shaft axially in the longitudinal direction during the operation of the driving device. | 04-17-2014 |
| 20140199004 | Bearing Retainer - A bearing arrangement includes a housing, a rotating member traversing the housing, a bearing assembly located between the housing and the rotating member and supporting the bearing member, and a retainer in contact with the housing and the bearing assembly. The retainer has positioning means adapted to engage with the housing so that the retainer is moveable to a predetermined position to retain the bearing assembly. | 07-17-2014 |
| 20140254962 | REPLACEABLE AXIAL JOURNAL FOR AUXILIARY BEARINGS - A system and method are provided for an auxiliary bearing system. The system and method may include a sleeve extending circumferentially about a rotary shaft and coupled thereto. The system and method may also include an axial journal disposed circumferentially about the rotary shaft and adjacent an axial end of the sleeve. The system and method may further include a locking nut coupled to the rotary shaft. The locking nut may be configured to force the axial journal to engage the axial end of the sleeve to at least partially resist axial movement of the axial journal along the rotary shaft. The system and method may further include a gripping assembly disposed circumferentially about the rotary shaft. The gripping assembly may be configured to engage the axial journal to at least partially resist radial movement of the axial journal relative to the rotary shaft. | 09-11-2014 |
