Class / Patent application number | Description | Number of patent applications / Date published |
384512000 | Plural axially spaced balls with integral race | 26 |
20080226213 | Wheel Bearing Unit - The invention relates to a wheel bearing unit having at least one outer part, having at least one inner part, and having at least two rows of rolling bodies between the outer part and the inner part, wherein in each case at least one inner raceway is formed on the outer part and in each case at least one outer raceway is formed on the inner part for the rolling bodies of one row. A ratio of the diameter of the reference circle of at least one row of the wheel bearing unit to the diameter of the rolling bodies of the respective row is greater than the numerical value six. The row spacing between the rows corresponds to at most 1.65 times the diameter of the rolling bodies. | 09-18-2008 |
20080240639 | Double row ball bearing and differential gear device - The difference between a revolution period of larger diameter-side balls and a revolution period of smaller diameter-side balls is smaller as compared with a conventional bearing. The relation, (β−10)≦α<β, is established, where α(°) represents a contact angle of the larger diameter-side ball, and β(°) represents a contact angle of the smaller diameter-side ball. | 10-02-2008 |
20090052825 | PRELOAD MEASURING DEVICE FOR DOUBLE ROW ROLLING BEARING UNIT - A preload measuring device for a double row rolling bearing unit includes an outer bearing ring member having double rows of outer ring raceways on an inner circumferential surface, an inner bearing ring member having double rows of inner ring raceways on an outer circumferential surface, rolling elements rollably arranged between the outer ring raceways and the inner ring raceways in each of the rows such that contact angles given to the respective rows are opposite to one another, axial displacement measuring means for obtaining an axial relative displacement between the outer bearing ring member and the inner bearing ring member, inclination angle measuring means for obtaining an inclination angle between center axes of the outer bearing ring member and the inner bearing ring member, and preload calculating means for obtaining a preload applied to the rolling elements based on the inclination angle and the axial relative displacement. | 02-26-2009 |
20090067768 | Rolling Bearing and Supercharger Using Same - There are provided an inner ring having a first raceway at an outer periphery thereof, an outer ring having a second raceway at an inner periphery thereof, an intermediate ring which is interposed between these, and has a third raceway at an inner periphery thereof and also has a fourth raceway at an outer periphery thereof, first rolling elements interposed between the first raceway and the third raceway, and second rolling elements interposed between the fourth raceway and the second raceway. The intermediate ring includes a larger-diameter ring portion, and a smaller-diameter ring portion formed on the larger-diameter ring portion through an inclined ring portion. The third raceway is formed at a boundary portion between the larger-diameter ring portion and the inclined ring portion, and the fourth raceway is formed at a boundary portion between the smaller-diameter ring portion and the inclined ring portion. | 03-12-2009 |
20090116778 | MULTI-ROW SYMMETRICAL ROLLING BEARING - The invention relates to a rolling bearing having a first bearing ring, a second bearing ring and a plurality of rolling bodies which are arranged between the first bearing ring and the second bearing ring. The rolling bodies are arranged in at least four rows, at least two rows have a first reference diameter, at least two further rows have a second reference diameter which is different from the first reference diameter, and those rows which have in each case the same reference diameter are arranged symmetrically with respect to a predefined plane which is aligned perpendicular to a longitudinal direction of the bearing. | 05-07-2009 |
20090154857 | Bearing Apparatus for a Wheel of Vehicle - A vehicle wheel bearing apparatus has an outer member ( | 06-18-2009 |
20090180726 | WHEEL HUB JOINT UNIT FOR A VEHICLE - A wheel hub joint unit is provided that includes, but is not limited to a constant velocity rotary joint and a wheel bearing. The constant velocity rotary joint has a joint outer part. The wheel bearing supports a wheel hub with a double-row bearing, and the double-row bearing is disposed on the joint outer part. | 07-16-2009 |
20090220180 | Wheel Bearing Apparatus For A Vehicle - A vehicle wheel bearing apparatus has an outer member formed, on its inner circumference, with double row outer raceway surfaces. An inner member includes a wheel hub integrally formed with a wheel mounting flange at its one end. The wheel hub outer circumference surface has double row inner raceway surfaces arranged opposite to the double row outer raceway surfaces. Double row balls are freely rollably contained between the outer raceway surfaces and inner raceway surfaces, respectively, of the outer member and the inner member. A pitch circle diameter of the double row ball group of the outer-side is larger than a pitch circle diameter of the double row ball group of the inner-side. At least the outer member and the wheel hub are formed of medium/high carbon steel including carbon of 0.40˜0.80% by weight. The inner and outer raceway surfaces are formed, respectively, with predetermined hardened layers with a surface hardness of 58˜64 HRC. The grain size number of austenite crystal grains of the metallographic structure in the hardened layers is selected larger than #7. | 09-03-2009 |
20090263064 | ANGULAR BALL BEARING ASSEMBLY FOR SUPPORTING A GEAR SHAFT ASSEMBLY - The angular ball bearing assembly for supporting a rotatable shaft with gears has two sets of ball bearing members where the ball bearing member located adjacent the gears has an inner raceway formed integrally with the shaft. By forming the inner raceway directly on the shaft a reduction in friction is achieved compared to conventional tapered roller bearings. | 10-22-2009 |
20100014795 | Wheel support bearing assembly - A wheel support bearing assembly including an outer member having an inner periphery formed with a plurality of raceway surfaces; an inner member having an outer periphery formed with raceway surfaces cooperable and aligned with the raceways in the outer member; rows of balls interposed between the raceway surfaces in the outer member and the raceway surfaces in the inner member, respectively; and a wheel fitting flange provided in the outer periphery of one of the outer and inner members. In the wheel support bearing assembly, the diameter of the pitch circle depicted by the balls of a row on an outboard side is greater than the pitch circle of the balls of the row on an inboard side, and the ratio of the diameter of the balls relative to the pitch circle diameter of the row of the balls on the inboard side is within the range of 0.14 to 0.25. | 01-21-2010 |
20100054646 | DOUBLE-ROW WHEEL BEARING UNIT - The invention relates to a double-row wheel bearing unit for a vehicle, comprising an axle journal fixed to the vehicle, and a wheel hub bearing a wheel flange rotatably mounted on said axle journal by means of two rows of rolling bodies spaced axially apart. In order to adapt the loading capacity of the rows of rolling bodies to the respective load conditions, the two rows of rolling bodies have different rolling circle diameters respectively adapted to the highest expected load. | 03-04-2010 |
20100098365 | HUB BEARING UNIT PROVIDED WITH MULTIPLE ROWS OF ROLLING ELEMENTS - There is provided a hub bearing unit with multiple rows of rolling elements. A hub has one or more inner race surfaces. An inner ring is seated on an outer peripheral surface of the hub and has one or more inner race surfaces thereon. An outer ring is formed with outer race surfaces as many as inner race surfaces formed at the hub and the inner ring. Rolling elements are disposed between the outer race surfaces and the inner race surfaces. Cages are disposed to maintain circumferential intervals of the rolling elements. The outer ring is formed with three or more outer race surfaces. The rolling elements are arranged in three or more rows. The arrangement of multiple-row rolling elements enhances the life of the bearing. Manufacturing costs are curtailed and rolling resistance is reduced compared to the tapered roller bearing. | 04-22-2010 |
20100178002 | Integrated Two-Level Bearing - A bearing arrangement includes a bearing outer element that defines a first plurality of races opening radially inwardly, a bearing inner element that defines a second plurality of races opening radially outwardly, and a bearing middle element defining a third plurality of races at its radially outer surface thereof and a fourth plurality of races at its radially inner surface thereof. Rolling elements are receivable in the races. The bearing middle element includes an axial protrusion at least at one end thereof that can be received in a housing with respect to which the bearing outer and inner elements are rotatable. | 07-15-2010 |
20100189386 | ANGULAR-CONTACT BALL BEARING IN A TANDEM ARRANGEMENT, AND BEARING ARRANGEMENT HAVING THE ANGULAR-CONTACT BALL BEARING - The invention is based on the object of developing an angular-contact ball bearing in a tandem arrangement and a corresponding bearing arrangement. The invention proposes an angular-contact ball bearing ( | 07-29-2010 |
20100195947 | BEARING DEVICE FOR A WHEEL - A bearing device for a wheel, in which circumferential play is minimized and in which a hub ring and an outer joint member of a constant velocity universal joint can be connected with excellent workability. Axially extending projections ( | 08-05-2010 |
20100215303 | DOUBLE ROW, ANGULAR CONTACT BALL BEARING WITH TWO PLASTIC COMB CAGES WITH RETAINING TABS - Double row angular contact ball bearing ( | 08-26-2010 |
20100239202 | DOUBLE-ROW ANGULAR BEARING, BEARING DEVICE FOR WHEEL, METHOD OF PRODUCING OUTER RACE, AND METHOD OF PRODUCING INNER RACE - Provided are: a double-row angular bearing capable of enhancing its rolling life and cost reduction; a bearing device for a wheel, which is capable of reducing a number of assembling process steps in an assembly factory of automobiles and the like, is excellent in productivity, and is capable of cost reduction; and a method of producing an outer race and an inner race of a bearing, which can achieve their weight reduction to a large extent. The double-row angular bearing includes: an inner race having inner rolling surfaces on a radially outer surface thereof; an outer race having outer rolling surfaces on a radially inner surface thereof; and rolling elements rotatably housed between the outer rolling surfaces of the outer race and the inner rolling surfaces of the inner race. The outer race or the inner race is formed of a plastically worked article formed by cold rolling. | 09-23-2010 |
20110206307 | Wheel Bearing Apparatus For A Vehicle - A vehicle wheel bearing apparatus has an outer member; an inner member and double row balls freely rollably contained between outer raceway surfaces and inner raceway surfaces. An inner ring is axially secured relative to a wheel hub by a caulked portion. The caulked portion is formed by plastically deforming the cylindrical portion radially outward. The wheel hub is formed from medium-high carbon steel including carbon of 0.40-0.80% by weight and with a ferrite grain size number selected larger than #3. | 08-25-2011 |
20120148181 | Wheel Bearing - A wheel bearing has an outer member and a pair of inner rings. Double row balls are freely rollably contained between the outer and inner raceway surfaces, via cages, of the outer member and inner rings. A counter portion is formed near a groove bottom of the inner raceway surface. The counter portion has a diameter larger than a groove bottom diameter by a predetermined clearance. The counter portion is formed by a cylindrical portion and a tapered portion. The cylindrical portion axially extends from the inner raceway surface. The tapered portion reduces from the cylindrical portion toward a smaller end face of the inner ring. A transition portion, between the counter portion and the inner raceway surface, is smoothly formed by an arc with a radius of curvature 2.0-10.0 mm. | 06-14-2012 |
20120237151 | MULTIPLE-ROW BALL BEARING ARRANGEMENT - A multiple-row ball bearing arrangement, which has at least one inner bearing ring and at least one outer bearing ring which are coaxially disposed on a longitudinal axis. The multiple-row ball bearing arrangement also has a plurality of balls disposed between the inner and the outer bearing rings in at least one first ball row and a second ball row adjacent to the first ball row, and a first cage for guiding the balls of the first ball row and a second cage for guiding the balls of the second ball row. The first and the second cage each have a first and a second cage side ring. The first cage side ring of the first cage and the second cage side ring of the second cage are adjacent to each other and, at least in some sections, are arranged so as to overlap along the longitudinal axis. | 09-20-2012 |
20140003755 | BEARING DEVICE HAVING A SAFETY BEARING | 01-02-2014 |
20140355922 | BLADE BEARING WITH SUPPORT STRUCTURE HAVING NON-UNIFORM STIFFNESS AND METHOD MANUFACTURE - A blade bearing for mounting a blade of a wind turbine to a hub of the wind turbine comprises inner and outer rings arranged next to each other. One of the inner and outer rings is configured to mount to the blade, and the other is configured to mount to the hub. At least two rows of rolling elements are positioned between the inner and outer rings. Upper and lower rows of the rolling elements are located in respective upper and lower planes. A support structure is secured to the inner ring and extends in a substantially radial direction between the upper and lower planes. The support structure has non-uniform stiffness characteristics in a circumferential direction. A method of manufacturing a blade bearing is also provided. | 12-04-2014 |
20150125103 | PULLEY-BEARING ASSEMBLY - A pulley-bearing assembly provided with a pulley and a rolling bearing confined by respective coupling surfaces co-axial to each other and defining a groove there between; the rolling bearing being provided with two rows of rolling bodies having pitch diameters (D, Di) of different size, and a metallic ring being pressed into the groove and deformed so as to join the pulley with the bearing. | 05-07-2015 |
20150323003 | TRIPLE RACE ANGULAR CONTACT BEARING - A rolling bearing assembly including an intermediate bearing ring is provided. The rolling bearing assembly includes an inner bearing ring including at least one axial end configured to be supported on a first component, and an outer bearing ring including at least one axial end configured to be supported on a second component. The intermediate bearing ring is arranged between the inner bearing ring and the outer bearing ring and includes at least one axial end configured to be supported on a third component. The at least one axial end of the intermediate bearing ring extends in an axial direction past at least one of the at least one axial end of the inner bearing ring or the at least one axial end of the outer bearing ring. | 11-12-2015 |
20150330449 | METHOD FOR MANUFACTURING A ROLLING BEARING AND ROLLING BEARING MANUFACTURED ACCORDING TO SUCH A METHOD - This method is for manufacturing a rolling bearing having a rotatable ring, a non-rotatable ring, rolling bodies and a flange coupled with a first ring amongst the rotatable ring and non rotatable ring. This method includes at least the following steps: forming the rings and the flange as three independent parts, immobilizing a weldable insert onto the first ring, by electro magnetic pulse technology (EMPT) or by capacitor discharge welding (CW), and welding together the insert and the flange or the insert and a flange holding member. The rolling bearing includes the insert immobilized on the first ring by magnetic pulse welding (MPW), magnetic pulse forming (MPF) or by capacitor discharge welding (CDW). Moreover, the flange or a flange holding member is welded on the insert. | 11-19-2015 |
20160076585 | DOUBLE ROW PRELOADED BALL BEARING WITH SPACER BALLS - A ball bearing includes an outer ring having at two outer raceways and an inner ring having two inner raceways. A plurality of balls is disposed in each of the two inner and outer raceways. The plurality of balls include load bearing balls and spacer balls. The spacer balls are disposed between the load bearing balls. Each of the load bearing balls has a single point of contact with each of the two inner and outer raceways. The load bearing balls are preloaded between the outer ring and the inner ring at predetermined force. | 03-17-2016 |