Abstract: A spacer device for roller elements of a toroidal roller bearing includes an inner ring with an inner ring raceway and an outer ring with an outer ring raceway. The toroidal roller bearing allows for axial and angular displacement between the inner ring and the outer ring. The spacer device comprises at least one centering element that is arranged to extend in between adjacent roller elements in a longitudinal direction of the roller elements when the spacer device is in use. The at least one centering element is arranged to make contact with at least one of one point or a region of one of the inner ring raceway or the outer ring raceway when the spacer device is in use, whereby the spacer device is centered on the one of the inner ring raceway or the outer ring raceway.

Abstract: An angular contact self-aligning toroidal roller bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is arranged to self orient in its axial direction in relation to the inner and outer rings in a loaded zone during operation. Furthermore, a method for determining dimensional parameters of structural members of an angular contact self-aligning toroidal rolling element bearing and a method for manufacturing an angular contact self-aligning toroidal rolling element bearing are described herein.

Abstract: An angular contact self-aligning toroidal roller bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is arranged to self orient in its axial direction in relation to the inner and outer rings in a loaded zone during operation. Furthermore, a method for determining dimensional parameters of structural members of an angular contact self-aligning toroidal rolling element bearing and a method for manufacturing an angular contact self-aligning toroidal rolling element bearing are described herein.

Abstract: A spacer device for roller elements of a toroidal roller bearing includes an inner ring with an inner ring raceway and an outer ring with an outer ring raceway. The toroidal roller bearing allows for axial and angular displacement between the inner ring and the outer ring. The spacer device comprises at least one centering element that is arranged to extend in between adjacent roller elements in a longitudinal direction of the roller elements when the spacer device is in use. The at least one centering element is arranged to make contact with at least one of one point or a region of one of the inner ring raceway or the outer ring raceway when the spacer device is in use, whereby the spacer device is centered on the one of the inner ring raceway or the outer ring raceway.

Abstract: A roller bearing with symmetric barrel shaped rollers comprising an inner race (13), an outer race (14) and rollers (11), each of which rollers have at least one rounded end, and being of the bearing type where rollers and race tracks have longitudinal section profiles with substantially the same radius of curvature, whereby the rollers during normal operating conditions are axially moveable between the race tracks without hindrance from axial confinements at the race tracks for allowing relative misalignment and axial displaceability of the race tracks, wherein the end drop zone has a length (d1) which is lower than 5% of the length (1a) of the roller, and which commences where the bend of the curvature of the roller in axial direction exceeds the normal curvature of the roller by 0.1°, and where the end drop of the roller is otherwise determined by the following relations, r/1a≧0.35 for &ggr; values up to 0.7°, and r/1a is ≧0.2 for &ggr; values between 0.7° and 1.4°.

Abstract: A roller bearing of the type incorporating an outer and an inner race ring (1, 3) having confronting race tracks (2, 4), with lands (A, B) situated axially outside said race tracks and a number of rollers (5) being interposed between and in contact with said race tracks, said rollers (5) and race tracks (2, 4) having longitudinal section profiles of a radious of curvature, which is bigger than the distance between the outer race track and the axis of the bearing, as measured perpendicularly to the race track, which rollers (5) thereby are axially movable along the race tracks without being hindred by axial limitations at the race tracks, in order to allow relative misalignment and axial displaceability of the race tracks, wherein at least portions of the areas (A, B, G, J) of the race rings axially outside the zone (H) subjected to bearing load, have such surface finish and/or profile as to contribute in giving the rollers (5) a positive skew angle.

Abstract: The present invention refers to a method for clearance adjustment in a rolling bearing having an angle of contact close to 0.degree., and of the type incorporating a number of rollers provided between and in contact with two race tracks, said rollers and race tracks having longitudinal section profiles of essentially the same radii of curvature, said rollers thereby being axially movable along the race tracks without being hindred by axial limitations at the race tracks, in order to allow relative misalignment and axial displaceability of the race tracks.

Abstract: Sealed bearing incorporating an inner race (13) an outer race ring (14) and a row of elongated rollers (15) disposed between, whereby races (11, 12) and rollers (15) have curved longitudinal section profiles and which rollers (15) are axially moveable between the races relative thereto for allowing mutual misalignment of the races, and whereby at least one sealing member (18) is formed separately, positioned axially outside the rollers (15) but adapted to follow the rollers (15) in a free-floating manner and arranged to provide its sealing effect by frictional engagement, wherein at least one of the inner and outer race rings (13, 14) at the axial outer ends of its race (11, 12) is each provided with a radially projecting motion preventing means (20) of short axial width, arranged to prevent the sealing member (18) from being pressed out from the space between the bearing race rings even at misalignments of the race rings (13, 14) relative to each other.

Abstract: A method and hydraulic nut for mounting a hollow article which has a conically shaped opening, such as a conical ring, on a conical shaft. The method comprises the following steps: a) installing the hollow article on the shaft, in order to fit the conically shaped surfaces of the article and the shaft against each other; b) moving the hollow article to a starting position (B), in order to provide an initial press fit; and c) moving the hollow article over a predetermined distance (S.sub.s) from the initial position to an end position (C), in order to provide a final press fit.

Abstract: A roller bearing includes an inner raceway member having an inner raceway surface and an outer raceway member having an outer raceway surface. The inner and outer raceway surfaces are spaced apart from one another to define an annular space and a plurality of rolling elements are disposed in the annular space for engaging the inner and outer raceway surfaces as the rolling elements roll in a rolling direction. During operation of the roller bearing, friction forces arise at regions of the inner and outer raceway surfaces that give rise to positive skew moments. Those regions of the raceway surfaces are designed to have greater frictional characteristics than those regions of the inner and outer raceway surfaces where negative skew moment producing friction forces arise. In that way, the skew of the roller can be controlled to be not excessively negative.

Abstract: A multi-row spherical roller bearing includes an inner race ring, an outer race ring, two rows of rollers, a cage for each row of rollers and a guiding ring disposed between the rows of rollers. The guiding ring is arranged to be guided only by the outer race ring, and the cages are arranged to be guided only by the guiding ring.

Abstract: Bearing (14) of the type having a full complement of rollers incorporating an inner race ring (13), an outer race ring (14) and a row of rollers (15) provided between these rings, said rollers being axially moveable relative to the rings. The space between inner race ring (13) and outer race ring (14) is sealed off by means of sealing members (18) arranged on one hand to provide a sealing effect by frictional engagement against the inner race ring as well as against the outer race ring, and on the other hand to follow the rollers (15) in their axial movement.

Abstract: A sealing device for a slot between two elements, which are rotatable relative to each other, e.g. an outer and an inner race ring in a rolling bearing, incorporates a flexible sealing portion having a lip, which contacts a sealing surface surrounding the lip. The sealing portion is rotatable, and the centrifugal force acts upon it thus that it tends to leave the surface at increasing rotational speed. In order positively to avoid that the lip is urged so hard against the surface at high rotational speeds, that an unallowable temperature increase occurs, the sealing portion and the surface have profiles of such shape, that the lip is displaced in a direction which has a component directed radially outwards relative to the rotational axis, when the sealing portion with the lip is bent by the centrifugal force.

Abstract: A roller bearing comprising an inner and outer raceway and a row of rollers arranged between and contacting the raceways, the axes of the rollers being substantially parallel to the axes of the raceways when the latter are coinciding, the rollers and the raceways having curved longitudinal section profiles in which the curve radii are substantially greater than the greatest distance between the central axis of the bearing and the surfaces of the raceways and wherein the rollers are axially movable between the raceways without being obstructed by axial limitations at the raceways or by limited axial cage play for permitting relative inclination and axial displaceability being limited only by the rollers being squeezed radially between the raceways.

Abstract: A rolling bearing characterized by novel features of construction and arrangement wherein the rotational speed of the rolling bodies all have the same revolution speed under varying load conditions and even if they lie in different load zones or are of different size within reasonable tolerance limits. By this construction, the retainer pockets can be sized to provide small play for the rolling elements to enhance the guiding of the rolling bodies and eliminate undesirable noise. This, of course, eliminates force effects from the retainer for rolling elements which are larger or smaller than the nominal dimension. This is achieved by providing an oscillation ratio G.sub.i /G.sub.y wherein G.sub.I and G.sub.y are the spaces between the envelope surface of the rolling body and the race track in the inner race ring and the outer ring taken along a normal to the rolling body axis located at a distance from the rolling body center of a non-loaded bearing is greater than ##EQU1## in which .gamma.=D.sub.w cos .

Abstract: A tapered roller bearing comprising inner and outer members and a plurality of frusto-conical rolling elements interposed between the members has means for controlling the skew angle of the rolling elements during operation of the bearing to lower overall friction in the bearing and to increase its service life. The profiles of the rolling elements and raceways are designed for skewing the rolling elements at a predetermined angle to cause the rolling elements to slide relative to the raceways during operation of the bearing. Optimum bearing performance is obtained when the element in the load zone is disposed at a positive skew angle which, by definition, occurs when the rotational axis of the rolling element and the bearing axis are not coplanar and the axial component of an external load applied to a bearing raceway tends to be counteracted by an oppositely directed axial component of a friction force applied to that raceway by the rolling element.

Abstract: A bearing comprising inner and outer members having inner and outer raceways spaced apart to define an annular space, a plurality of rolling elements in the annular space between the raceways, said rolling elements adapted to engage said members at inner and outer raceway contact zones, and means operable during operation of the bearing to cause at least the rolling elements in the load zone to assume a non-negative skew angle within a predetermined angular range; said rolling elements having a skew angle when the rolling element axis and the axis of the bearing are not coplanar and said skew angle being positive when the friction force components in the axial direction arising in each contact between a rolling element and said raceways and acting on the rolling element are so directed that they add onto or are codirectional to the axial component of the normal contact force load carried by said rolling element at that contact.

Abstract: A bearing comprising inner and outer members such as rings having inner and outer raceways spaced apart to define an annular space therebetween and a plurality of rolling elements in the annular space. A cage circumferentially spaces the rolling elements. Skew control means associated with the cage operates during operation of the bearing for a predetermined relative movement of the rings and rollers, to cause at least the rollers in the load zone to assume a nonnegative skew angle within a predetermined angular range. The rollers have a skew angle when the roller axis and the axis of the bearing are not coplanar. The skew angle is defined as being positive when the friction force components in the axial direction arising between the rollers and raceways and acting on a raceway are so directed that they counteract the axial load component of the external load acting on said raceway.