Class / Patent application number | Description | Number of patent applications / Date published |
384473000 | Reservoir, filter or lubrication circuit structure | 36 |
20080253709 | Bearing With Lubrication Oil Filter - A bearing (crank bearing | 10-16-2008 |
20080260313 | Self-Aligning Roller Bearing with Retainer and Manufacturing Method for Self-Aligning Roller Bearing Retainer - There is realized a self-aligning roller bearing with retainer that stabilizes the orientation of spherical rollers and prevents these spherical rollers from skewing, and which can be rotated at high speed, and furthermore which enables efficient lubricant feed into pockets | 10-23-2008 |
20090034892 | Rolling bearing - A rolling bearing assembly includes an inner race ( | 02-05-2009 |
20090136171 | Device for Encapsulating the Main Bearing of a Crankshaft - A device encapsulates a main bearing of a crankshaft. The main bearing is supplied with oil via an oil supply groove. The device has a bearing seat for the main bearing and on its sides which face toward the crank webs of the crankshaft, has oil channels which are open in the direction of the main bearing and in the direction of the crankshaft webs. In the device, the oil channels are sealed off in the direction of the crankshaft webs by sealing disks which are fastened to the bearing seat. | 05-28-2009 |
20090180723 | Rolling bearing device - A rolling bearing device includes a first bearing ring member having a first raceway; a second bearing ring member having a second raceway; and a plurality of rolling elements interposed between the first raceway | 07-16-2009 |
20110064345 | ROLLING ELEMENT HAVING LUBRICANT DEPOT AND ROLLER BEARING - A rolling element for a roller bearing and a corresponding roller bearing for lubrication. To this end, a rolling element for a roller bearing which has a base body with a receptacle and a lubricant depot is proposed. The lubricant depot is disposed in the receptacle, and has a mounting device disposed in the receptacle and forms a boundary surface on the edge for the lubricant depot. | 03-17-2011 |
20110064346 | VERTICALLY ROTATABLE SHAFT ASSEMBLY WITH THERMALLY INSULATED HOUSING - A vertically mountable shaft and bearing assembly includes a thermally insulated housing which protects the shaft, bearing(s), seal(s), and bearing lubricant from overheating due to a surrounding process fluid at a temperature exceeding 65° C. The thermal insulation, which in some embodiments includes vacuum, air, or an insulating material, enables a rolling element bearing to be located near the shaft's distal end, thereby reducing shaft and bearing size requirements. Lubricant is circulated past the bearing(s) by a circulation and cooling system having a capacity typical of systems used with process fluids at much lower temperatures. Additional roller and/or journal bearings can be included. The lubricant circulation system can be actuated by the shaft or driven separately. Lubricant within the shaft housing can be pressurized, for example by pressurizing gas or by filling the lubricant above the surrounding process fluid level. The shaft can operate a process fluid pump impeller. | 03-17-2011 |
20110091143 | SPHERICAL BEARING TRIPLE-LIP SEAL - A seal component ( | 04-21-2011 |
20110164841 | LUBRICANT RETAINER FOR PUMP SHAFT BEARING ASSEMBLY - A lubricant retainer for use in a pump bearing assembly, the bearing assembly which in a first operating configuration is lubricated by a relatively highly viscous lubricant, and which in a second operating configuration is lubricated by a less-viscous lubricant, the bearing assembly comprising a bearing housing having a bore extending therethrough for receiving a pump drive shaft, spaced-apart bearing mounting zones within said bore with a chamber therebetween, each bearing mounting zone arranged for the in use receipt of a bearing therein. Each zone has associated therewith one lubricant retainer, the lubricant retainer being adapted to be mounted within the bore adjacent the bearing mounting zone with which it is associated so as to form a barrier between the bearing mounting zone and the chamber when the pump bearing assembly is in the first operating configuration, the retainer being removed when the pump bearing assembly is in the second operating configuration. | 07-07-2011 |
20110206306 | ROLLING BEARING ASSEMBLY AND METHOD OF FORMING A LUBRICATION DEVICE THEREFOR - The invention provides a rolling bearing assembly adapted to prevent a cage from sustaining burn-out on a guided surface thereof even when a rolling bearing is rotated at high speed, and a method of forming a lubrication device for use in the same. | 08-25-2011 |
20120033907 | ROLLER BEARING - The invention relates to a roller bearing having an inner bearing ring having a raceway and an outer bearing ring having a raceway and a plurality of rolling elements disposed between the raceways that are lubricated by a lubricant. The invention is characterized in that the surface of the inner bearing ring and/or of the outer bearing ring facing the rolling elements and/or the surface of a cage holding the rolling elements have a surface structure. | 02-09-2012 |
20120155791 | Bearing Seal Structure - A bearing seal structure includes: a ridge portion provided on an inner race; a groove portion provided on an outer race; and a grease reservoir that is defined by the ridge portion and the groove portion and contains grease for providing a seal between the inner race and outer race. | 06-21-2012 |
20120155792 | SEALED SPHERICAL ROLLER BEARING ASSEMBLY - A sealed spherical roller bearing assembly, having an outer ring with a seal groove and an inner ring with a central bore. A plurality of rolling elements is arranged between the inner ring and the outer ring. A seal is provided that has a sealing element on an outer diameter of the seal, which sealing element engages in the seal groove in the outer ring, | 06-21-2012 |
20120219245 | IMPROVED BEARING SYSTEM - The improved bearing system includes a pair of axially split and generally cylindrical cartridges having respective bearing units configured to be mountable to a common axial shaft. An annular channel is generally formed from one of the cartridges for selectively receiving a preload ring. An annular groove is formed from a portion of the other cartridge and sized to slidably receive the preload ring. A preload element is disposed within the annular groove and axially compressed between a preload surface of the annular groove and the preload ring. The preload element maintains a simultaneous axial preload thrust on the bearing cartridges and respective bearing units in inwardly opposite axial directions. | 08-30-2012 |
20120237150 | VERTICALLY ROTATABLE SHAFT ASSEMBLY WITH THERMALLY INSULATED HOUSING - A vertically mountable shaft and bearing assembly includes a thermally insulated housing that protects the shaft, bearing(s), and lubricant from overheating due to a surrounding process fluid that is above 65° C. This allows a bearing to be located near the shaft's distal end, thereby reducing shaft and bearing size requirements. The housing also serves as a reservoir for bearing lubricant that can be cooled by a lubricant cooling system normally used for processes at much lower temperatures. The lubricant can be circulated by an impeller that is actuated by the shaft or driven separately. The thermal insulation, can include vacuum, air, and/or a thermally insulating material. Additional rolling element and/or journal bearings can be included. Lubricant within the shaft housing can be pressurized, for example by pressurized gas or by filling the lubricant above the surrounding process fluid level. The shaft can operate a process fluid pump impeller. | 09-20-2012 |
20120243816 | ELECTRICALLY AND/OR THERMALLY INSULATED ANTI-FRICTION BEARING - An anti-friction bearing, which has an outer ring, an inner ring and rolling bodies that are arranged between the rings, distributed over a circumference of the rings, and roll on the rings. For an increase of thermal insulation, electrical insulation and the like, a film section, which is manufactured without the removal of material from a plastic film, is attached on an outer circumference of the outer ring over at least part of an axial width of the outer ring and at least over part of an outer circumference of the outer ring. | 09-27-2012 |
20120263405 | Tapered Roller Bearing and Manufacturing Method for Retainer of Tapered Roller Bearing - A tapered roller bearing improves durability during a state of insufficient lubrication by sufficiently lengthening the time until rotation becomes impossible due to seizure. Oil retaining concave sections, recessed outward in the radial direction, are formed in portions on the inner circumferential surface of a large-diameter rim section of the retainer whose phase in the circumferential direction coincides with the pockets. A portion of the bottom surface of each of the oil retaining concave sections, open to the inside surface of the pocket, face a concave section formed in an end surface on the large-diameter side of tapered roller that is held inside the pocket. When lubrication becomes insufficient, oil remaining in the concave sections is effectively used for lubricating areas of sliding contact between the end surfaces on the large-diameter side and the inside surface in the axial direction of a large-diameter side flange section. | 10-18-2012 |
20130004109 | BEARING OILING SYSTEM - An inner ring of an under race lubricated bearing assembly that includes an outer surface, an inner surface, and an inner race formed on the outer surface of the inner ring. A plurality of circumferentially spaced axial slots is formed on the inner surface of the inner ring, and a first set of circumferentially spaced partial circumferential slots is formed on the inner surface of the inner ring adjacent a first end of the inner ring. Each partial circumferential slot intersects at least one of the axial slots. The inner ring also includes a first set of radial holes, where each radial hole extends from the outer surface of the inner ring to one of the partial circumferential slots. | 01-03-2013 |
20130077907 | BEARING OILING SYSTEM - A split inner ring of a bearing assembly comprises first and second rings, a plurality of holes, a circumferential annulus and a lubrication system. The first and second rings are configured to mate axially at inside side surfaces to define an inner raceway formed on an outer surface of the rings. The plurality of holes are circumferentially spaced and extend from an outside side surface to an inside side surface of the first ring. The circumferential annulus is formed on the inside side surface of the first ring, between the inner raceway and an inner surface of the first ring, and intersects the plurality of holes. The lubrication system connects the circumferential annulus to the outer surface of the first ring and the second ring. The lubrication system comprises circumferentially spaced slots in the first ring, or axial holes fluidly coupled with radial holes in the second ring. | 03-28-2013 |
20140029882 | OIL-LUBRICATED ANTI-FRICTION BEARING - An oil-lubricated anti-friction bearing is provided for a horizontal arrangement of a rotational axis with a shaft seal that separates a bearing inner chamber, which accommodates rolling bodies, from a bearing outer side, and has a clamping arrangement which acts on the shaft seal from a bearing outer side in order to fix the shaft seal axially. The clamping arrangement has an outlet for oil. | 01-30-2014 |
20140153855 | Rolling Bearing Having Insulating Material - A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, and an annular housing comprising at least one part surrounding at least one of the rings, said outer ring comprising two separate parts, each of the two parts of said outer ring defining one closed space with the housing. At least one part forming said housing or said outer ring has a sandwich structure with an inner layer made of a damping material and two outer layers made of a metallic material surrounding the inner layer. | 06-05-2014 |
20140286602 | ROLLING BEARING UNIT - A rolling bearing unit includes: a rolling bearing; a grease reservoir in which grease is reserved; an outer ring spacer disposed adjacent to an outer ring of the rolling bearing; and a bellows-shaped grease medium that connects a second side wall that defines the grease reservoir on the outer ring spacer side, to a step portion of the outer ring. The grease medium is disposed so as to be impregnated with a base oil contained in the grease. | 09-25-2014 |
20140314360 | ROLLING BEARING DEVICE - A rolling bearing device includes a rolling bearing, and a lubricant reservoir that is formed in an outer ring spacer. A lubricant containing base oil, a gelling agent and water is disposed so as to be contained in the lubricant reservoir. The lubricant has a uniform base oil concentration. The base oil concentration is 40% by weight to 50% by weight. | 10-23-2014 |
20150043852 | Rolling Bearing With Reduced Friction Torque - A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between a pair of raceways, each raceway provided on the respective inner ring and outer ring, and an annular housing comprising at least one part surrounding at least one of the rings. The outer ring comprises two separate parts. Each of the two parts of the outer ring defines one closed space with the housing. The ratio between the radius of one raceway and the diameter of the rolling elements is higher than 0:55. | 02-12-2015 |
20150043853 | ROLLING BEARING UNIT - A rolling bearing unit includes: a rolling bearing including an inner ring, an outer ring and a plurality of rolling elements disposed between the inner ring and the outer ring; an annular outer ring spacer disposed adjacent to one axial end of the rolling bearing, the outer ring spacer having a grease reservoir in the form of a groove extending along the circumferential direction of the outer ring spacer, and an opening that provides communication between the grease reservoir and the inside of the rolling bearing; and grease retained in the grease reservoir. Channels are formed in the grease to extend from the opening along the axial direction of the outer ring spacer. | 02-12-2015 |
20150110429 | CHAMBERED SHAFT FOR IMPROVED BEARING LUBRICATION - A shaft for a bearing lubrication assembly includes an outer surface and a reservoir disposed within the shaft. A first seal groove is formed on the outer surface and extends a full circumference of the outer surface. A second seal groove is also formed on the outer surface and extends the full circumference of the outer surface. A radial port extends from the reservoir to the outer surface, the radial port intersecting the outer surface between the first seal groove and the second seal groove. A plurality of chambers are formed in the shaft and disposed axially between the first seal groove and the second seal groove. The plurality of chambers are open to the outer surface with each chamber having a closed bottom disposed radially inward from the outer surface. Each chamber is also circumferentially spaced from one another. | 04-23-2015 |
20150292560 | ROLLING BEARING DEVICE - A rolling bearing device includes a rolling bearing; and a spacer provided adjacent to one side of the rolling bearing in an axial direction and having a grease reservoir and a flow path, the grease reservoir being in a form of a groove, extending along a circumferential direction, and having grease reserved in the grease reservoir, and the flow path providing communication between the grease reservoir and an inner part of the rolling bearing. The spacer includes an annular wall surface that defines an inner periphery of the grease reservoir. An end of the annular wall surface on a side of the rolling bearing in the axial direction of the grease reservoir is continuous with an opposed end face of the spacer that is opposed to the rolling bearing. An entire area of the annular wall surface is constituted by a flat surface. | 10-15-2015 |
20150308506 | DEVICE TO RETAIN LUBRICANT IN A LUBRICATING ASSEMBLY AND IMPLEMENTATION THEREOF - A lubricating assembly that is configured as part of a lubricating system that flings, or slings, fluid lubricants about the interior of rotating machinery. In one embodiment, the lubricating assembly includes a bearing clamp member with a clamp body having an outer peripheral edge that has an annular profile that partially circumscribes a longitudinal axis. The annular profile can have first annular section with a first clamp surface and a second clamp surface disposed in opposing relation about a centerline and spaced apart from one another to form a first annular gap. At the bottom of the clamp body, the bearing clamp member is configured with a peripheral wall that bounds a reservoir region. This configuration allows the fluid lubricants to gravity feed through the first annular gap into the reservoir region to retain a volume of the captured lubricant to lubricate moving parts of the lubricating system. | 10-29-2015 |
20160025141 | ROLLING BEARING APPARATUS AND LUBRICATION UNIT - A lubrication unit in a rolling bearing apparatus includes a pump that supplies a lubricant to an annular space formed between an inner ring and an outer ring, and is provided adjacently to the annular space. The pump includes a needle-like nozzle having, at a tip thereof, a discharge port through which the lubricant is discharged toward an outer ring raceway groove in an outer ring. A tip of the nozzle is in contact with a shoulder portion inner peripheral surface adjacent to the outer ring raceway groove or is provided close to the shoulder portion inner peripheral surface such that a very small gap is formed between the tip and the shoulder portion inner peripheral surface. | 01-28-2016 |
20160040719 | BEARING SEAL FOR MEDIA LUBRICATION - A rolling bearing assembly including a radially inner ring defining an inner race, a radially outer ring defining an outer race, and rolling elements supported between the inner ring and the outer ring is provided. At least one filter seal is arranged between the radially inner ring and the radially outer ring. The at least one filter seal includes a first washer having a first plurality of openings, a second washer having a second plurality of openings, and a filter washer arranged axially between the first and second washers, and the first washer, second washer, and filter washer are laminated together. | 02-11-2016 |
20160053810 | ROLLING BEARING - A rolling bearing includes an outer ring, an inner ring in which a shoulder diameter at one end of the rolling bearing in an axial direction is different from a shoulder diameter at the other end of the rolling bearing in the axial direction, a cage, a plurality of rolling elements, and shielding portions. A first clearance between an outer ring inner peripheral surface facing a large end of the inner ring having the larger shoulder diameter and a cage outer peripheral surface facing the outer ring inner peripheral surface is larger than a second clearance between an outer ring inner peripheral surface facing a small end of the inner ring having the smaller shoulder diameter and a cage outer peripheral surface facing the outer ring inner peripheral surface. | 02-25-2016 |
20160069391 | VACUUM PUMP - A vacuum pump comprises: a ball bearing which supports a rotor; a holding section which elastically holds an outer ring of the ball bearing; and a grease which is filled between the outer ring and the holding section, the grease having a consistency of NLGI No. 1.5 or less. | 03-10-2016 |
20160076592 | SUPERCHARGER BEARING WITH GREASE RESERVOIR - A bearing assembly, preferably for a supercharger, is provided. The bearing assembly includes an outer ring having an outer raceway and first and second axial ends. A cage having pockets is located in the outer ring, and a plurality of needles, are located in the pockets in the cage, and roll on the outer raceway of the outer ring. The needles define an inner support surface adapted to receive a shaft. A shaft seal is connected to the outer ring at the first axial end. A cap press-fit into the outer ring at the second axial end, and provides a grease reservoir. | 03-17-2016 |
20160108962 | ROLLING BEARING - A rolling bearing includes an outer bearing race and an inner bearing race defining a bearing space therebetween. Rolling elements are mounted in the bearing space. A seal device is provided at one axial opening of the bearing space and includes a ring member formed of a metal and formed with through holes configured such that lubricating oil can pass through the through holes and solid foreign substances cannot pass through the through holes. One of the outer bearing race and the inner bearing race is stationary, and the other is rotatable. The ring member is in engagement with the stationary bearing race. A sub-ring member, which is a separate member from the ring member and made of a metal, is fixed to the rotatable bearing race. Between the ring member and the sub-ring member, a gap is defined which constitutes a labyrinth seal structure. | 04-21-2016 |
20180023621 | ANTI-FRICTION BEARING | 01-25-2018 |
20190145464 | RELEASE BEARING COVER AND WASHER SEAL | 05-16-2019 |