Class / Patent application number | Description | Number of patent applications / Date published |
384447000 | Elliptical, eccentric, alternating roller, or mass ball features; compensating for nonthermal deformation; centrifugal preload | 15 |
20090175567 | CAM FOLLOWERS FOR LONG LIFE - A cam follower assembly has an outer race and an inner race located therein. Rollers are located between the outer and inner races to enable the two races to rotate relative to one another. The surfaces of the inner race are lapped and subsequently treated using a cold plastic deformation process. This process is a dry mechanical process that involves applying a high energy flow of abrasive material in a carrier medium to the metal surfaces of the inner race. The present invention is not limited to treatment of the surfaces of the inner race, however, as the surfaces of the outer race as well as the surfaces of the rollers may be similarly treated. | 07-09-2009 |
20090297080 | WALKING BEARING SYSTEMS STRUCTURES AND PROCESSES - A bearing system comprises a support member and a rotational element having a generally cylindrical bearing surface, and a plurality of detents defined upon and extending in from the cylindrical bearing surface, and may include means for rotating the rotational element in relation to the support member. The bearing system also comprises at least three bearing assemblies, each comprising a cam member rotatably mounted to the support member. Each of the cam members comprises a cam surface having a profile that contacts the cylindrical bearing surface and rotates away from a home position when the cam is rotatably positioned to meet one of the bearing regions, and does not contact the cylindrical bearing surface when the cam is rotatably positioned to meet one of the detent regions. Each of the cam members are rotationally biased toward their home position. | 12-03-2009 |
20090297081 | ULTRATHIN CROSS-ROLLER BEARING - An ultrathin cross-roller bearing composed of outer and inner rings, more than one roller rolling through between the outer and inner rings, and a separator interposed between any two adjoining rollers. With the ultrathin cross-roller bearing constructed as stated earlier, the separator lying between the adjoining rollers is in the form of right cylinder better for keeping constantly the roller in proper posture, getting the bearing itself downsized and lightweight as small as possible, and further making sure of positive lubrication. The outer and inner rings are each made into one-piece construction. The inner ring has an inside diameter in a range of from 20 mm to 50 mm. The roller used in the ultrathin cross-roller bearing has a diameter of 2 mm to render a transverse section given by a product of a radial height and a bearing width in transverse section small or ultrathin in thickness. | 12-03-2009 |
20110293210 | CENTRIFUGAL VARIABLE PRELOAD DEVICE - According to at least one exemplary embodiment, a variable preload device is disclosed. The variable preload device may include at least two annular end members, each annular member adapted to receive a shaft therein, and a plurality of plates axially extending between the annular end members and hingedly coupled thereto. The plurality of plates may be adapted to bend inward so as to impart an hourglass configuration to the variable preload device when the variable preload device is at rest and to bend outward in proportion to increased rotational speed provided to the variable preload device. Furthermore, the axial distance between the annular end members may varies in proportion to the rotational speed provided to the variable preload device. | 12-01-2011 |
20120039553 | Crankshift Bearing Assembly - A crankshaft bearing assembly is for a reciprocating fluid-machine. The crankshaft bearing assembly comprises a shaft having a co-rotating first eccentric surrounded by a second eccentric. The second eccentric is adjustable around the first eccentric, and the second eccentric is surrounded by a bearing and a crankshaft bearing housing. The second eccentric is connected, by means of a coupling, to a shaft sleeve concentrically rotatable around the shaft. The coupling comprises a carrier which co-rotates with the shaft sleeve. The carrier, at a radial distance from the center axis of the shaft, is provided with a slide bolt projecting into a groove in a slide casing, the slide casing being fixedly connected to the second eccentric. | 02-16-2012 |
20120308169 | CROSSED-ROLLER BEARING - A crossed-roller bearing includes an inner ring having a first periphery and a first raceway groove formed on the first periphery, the first raceway groove being provided with a complete first raceway surface and a complete second raceway surface; an outer ring sleeved onto the inner ring and having a second periphery, an insertion hole, and a second raceway groove formed on the second periphery and corresponding to the first raceway groove, the second raceway groove being provided with a third raceway surface and a fourth raceway surface, a receiving space being jointly defined by the first, second, third, and fourth raceway surfaces; and a gasket, the insertion hole running through one of the third and fourth raceway surface to form a breakage therearound; a plurality of rollers mounted in the receiving space to fill the breakge; a gasket mounted in the insertion hole and fills the breakage. | 12-06-2012 |
20130004107 | MULTIPLE ROW COMBINATION BALL BEARING - A multiple row combination ball bearing 10 includes at least two rows of ball bearings 11A and 11B. A counterbore 12 | 01-03-2013 |
20130195390 | Eccentric Bearing - An eccentric bearing for an electrohydraulic piston pump assembly of a vehicle brake system includes a shaft configured to be driven in rotation about its axis, a bearing ring which is eccentric relative to the shaft, and rolling bodies between the bearing ring and the shaft. The rolling bodies have different diameters corresponding to a varying width of a gap between the bearing ring and the shaft. When the shaft is driven in rotation, an eccentricity of the bearing ring revolves around the shaft at half of the rotational speed of the shaft and drives pump pistons to perform a reciprocating movement. A rolling body cage is open between the two largest rolling bodies. The rolling body cage loads the rolling bodies into the tapering gap and ensures that the rolling bodies revolve on the shaft when the shaft is driven. | 08-01-2013 |
20130202234 | SLEWING BEARING STRUCTURE - There is provided a slewing bearing structure capable of maintaining favorable bearing performance by adjusting and changing rigidity thereof while minimizing the increase in the weight thereof for preventing distortion of a pressure pattern caused by structural deformation from unfavorably affecting the bearing performance. A slewing bearing of a rolling bearing, in which a rolling element is put between bearing rings and formed on an inner ring and an outer ring, has a slewing bearing structure in which a rigidity strengthening portion, at which rigidity of the inner ring and/or the outer ring is increased more than that at peripheral portions, is formed at a circumferential area where a bearing contact pressure is high. | 08-08-2013 |
20130343684 | METHOD FOR FILLING A BALL ROLLER BEARING WITH ROLL BODIES AS WELL AS A BALL ROLLER BEARING FILLED ACCORDING TO THE METHOD - A method for filling a ball roller bearing with roll bodies, and a ball roller bearing, which is filled according to the method and has an outer and an inner bearing ring and a plurality of ball rollers, which are arranged between these bearing rings and have two side surfaces, which are flattened symmetrically from a basic spherical shape, parallel to one another and held at uniform distances from one another by a bearing cage. The ball rollers roll in groove-shaped raceways, recessed in the inner face of the outer bearing ring and the outer face of the inner bearing ring. The ball roller bearing is filled by an eccentric axial, tilting fitting of the ball rollers through the interval between the bearing rings in the form, that the filled ball roller bearing is filled to the extent of about 94% and has a service life of up to 253%. | 12-26-2013 |
20140301683 | SPLIT CAGE FOR A BEARING - A split rolling element guide for a bearing assembly for a balance shaft of an internal combustion engine, having two axial support faces and a plurality of axial cross members defining rolling element pockets. A plurality of radial cutouts at each pocket increase flexibility of the cage and allow for greater opening of the cage at the split portion | 10-09-2014 |
20140321783 | CROSSED ROLLER BEARING - A crossed roller bearing, including: an inner element and an outer element that relatively rotate, the inner element including an annular inner V-groove that is provided along an outer peripheral surface of the inner element and that has a V shape that opens towards the outer element, the outer element including an annular outer V-groove that is provided along an inner peripheral surface of the outer element, that has a V shape that opens towards the inner element, and that faces the inner V-groove; a plurality of cylindrical rolling elements that are placed between the inner V-groove and the outer V-groove, that roll while being in contact with the inner V-groove and the outer V-groove, and adjacent rolling elements of which have rolling axes that are perpendicular to each other; and a retainer that are placed between the adjacent rolling elements that includes a flat section that is a projecting central section on an area which faces either one of the rolling elements and that is capable of contact with the rolling element, and a tilt section whose degree of projection becomes smaller as it goes from the flat section to an end section of the retainer. | 10-30-2014 |
20140376847 | BEARING ASSEMBLY FOR ROCK DRILL - A bearing assembly for a rock drill includes a housing and a bearing. The housing includes a cylindrical tail portion and a head portion having a multi-sided outer surface configured to inhibit a rotation of the bearing assembly relative to the rock drill. The bearing is positioned within the housing and configured to receive a rotatable component of the rock drill. | 12-25-2014 |
20160025142 | ECCENTRICALLY BORED SLEEVE FOR LOCATING A BEARING - A bearing assembly includes a sleeve and a bearing located within a bore of the sleeve. The sleeve extends between an inner surface and an outer surface. The inner surface at least partially defines the bore, which extends through the sleeve. The inner surface is configured eccentric to the outer surface. The bearing includes a plurality of rolling elements arranged between an inner ring and an outer ring. The outer ring is mounted to the sleeve. | 01-28-2016 |
20160123384 | BEARING APPARATUS AND PIVOT APPARATUS FOR BEARING APPARATUS - Bearing apparatus including: a first bearing; a second bearing; and a pivot member including a first part contacting the first bearing, a second part contacting the second bearing, and a fulcrum between the first part and the second part. The pivot member is arranged to pivot about the fulcrum to distribute load between the first bearing and the second bearing. | 05-05-2016 |