Aktiebolaget Skf

Cyril Bouron

Pascal Ovize

Jean-Baptiste Magny

Jean-Baptiste Noirot

Herve Dondaine

Pascal Vioux

Bruno Capoldi

A spacer includes opposite first and second portions facing one another, and at least two spaced reinforcing beams connected to the first and second portions and extending transversally with respect to the portions, the reinforcing beams being disposed both on one side of the first and second portions. The spacer further includes at least one abutting beam connected to the first and second portions, extending transversally with respect to the portions and located on the side opposite to the reinforcing beams. The first and second portions delimit together with the reinforcing and abutting beams a pocket configured to receive at least a contact roller.

Spacer for rolling bearing, notably used in a wind turbine

The roller bearing provides an inner ring, an outer ring, and at least one row of oblique contact rollers arranged between bearing races, of the rings. Each of the rings provides a guide face, which is in contact with end faces, of the rollers. A point of intersection of the axis of rotation of each roller of the row with each guide face, of the rings is situated at an equal distance from inner, and outer, edges of the guide face.

Roller bearing comprising oblique contact rollers

Rolling bearing () comprising an inner ring (), an outer ring (), at least one row of rolling elements which are arranged between raceways formed on the rings () and a ring gear () that has a circumference of less than 360&#xb0; and is fixed to one of the rings (). The ring gear () is formed of a single gear segment () which has a circumference substantially equal to the circumference of the ring gear () and is provided on its inner or outer peripheral surface with a plurality of meshing means () and fixed only to one of either the inner or outer rings () of the rolling bearing ().

Rolling bearing, notably for ship's propeller or for wind turbine

Rolling bearing () comprising an inner ring (), an outer ring (), at least one row of rolling elements which are arranged between raceways made on the rings () and an ring gear () fixed to one of the rings (). The ring gear () is formed of at least two independent gear segments () which are each provided on their inner or outer peripheral surface with a plurality of meshing means () and fixed only to one of either the inner or outer rings () of the rolling bearing (), the circumference of the ring gear () being substantially equal to the circumference of the combination of the independent gear segments.

A cage for a rolling bearing including a plurality of cage segments is provided. Each segment has a first set of pockets for a first set of rollers, and a second set of pockets for a second set of rollers. The axes of the pockets of the first set of pockets are parallel with each other and the axes of the pockets of the second set of pockets are parallel with each other.

Cage with parallel pockets for rolling bearing

A spacer for a rolling bearing, most notably for use in a wind turbine is provided. The spacer is adapted for a rolling bearing having an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways provided on the rings. The spacer includes two opposite faceshaving a concave profile adapted to the rollers, each face comprising at least a contact surfacewith the associated roller having the shape of a cylinder segment. The axes of the cylinder segments of the contact surfaces converge.

A slewing bearing having two rings and rollers arranged between the rings, wherein one of the rings is provided with a through-hole for inserting the rollers for assembly and maintenance, and with a plug for closing the through-hole. The through-hole is formed as a bore including an inner portion with a smaller bore diameter and an outer portion with a larger bore diameter. The smaller diameter portion is reduced in order to facilitate the assembly, while avoiding an increased diameter in the innermost part of the thorough hole in order to secure stability and robustness.

Slewing bearing with a through-hole and plug

The rolling bearing provides an inner ring, an outer ringand a plurality of rows of rolling elementseach arranged between the raceways which are arranged on the rings, the number of rows of rolling elements Nbeing in excess of or equal to two. At least one of the inner and outer ringsincludes a plurality of part ringswhich are mounted bearing axially against one another. The number of part rings Nis defined by N&#x2267;N+1.

Rolling bearing comprising at least one multipart ring, notably for a wind turbine, and associated mounting method

The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of contact rollers disposed between raceways provided on the rings. The spacer comprises opposite first and second portionsfacing one another and at least a first lateral portionextending transversally between the first and second portions and connected to the portions. The first and second portions and the first lateral portion delimit at least partly a pocketlaterally open on the side opposite to the lateral portionand configured to receive at least a contact roller. The first and second portions each comprise an inner contact surfacewith an end face of the roller. The spacer further comprises at least one reinforcing beamextending transversally between the first and second portions and connected to the portions.

Spacer for rolling bearing having at least a reinforcing beam

The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of contact rollers disposed between raceways provided on the rings. The spacer comprises opposite inner and outer portions, facing one another and a lateral portion extending transversally between the inner and outer portions and connected to said portions. The inner and outer portions delimit together with the lateral portion a pocket configured to receive a contact roller. The pocket is laterally open on the side opposite to the lateral portion.

C-shaped spacer for rolling bearing

A roller bearing for a tunneller having an inner ring, an outer ring, two sets of rolling elements arranged between the tracks formed on the rings, the first set of rolling elements including at least one roller able to withstand axial stresses and the second set of rolling elements including an angular-contact roller that is able to withstand both radial and axial stresses, the inner and outer rings being concentric about an axis of rotation of the roller bearing. Each roller in the first set includes a first axis of revolution (Y-Y) inclined in relation to the axis of rotation (X-X) by a first angle (&#x3b1;) of between 45&#xb0; and 95&#xb0; and each roller in the second set includes a second axis of revolution (Y-Y) inclined in relation to the axis of rotation (X-X) by a second angle (&#x3b1;) of between 0&#xb0; and 45&#xb0;.

Roller bearing for a tunneller

The roller bearing comprises an inner ring, an outer ring, at least one row of rolling elements which are arranged between the rings in order to form an axial thrust which can transmit axial forces, and a row of rolling elements arranged between the rings in order to form a radial thrust which can transmit radial forces. The inner ring comprises an annular groove which extends towards the interior from an outer surface of the ring, and forms a raceway for the rolling elements of the radial thrust.

Roller bearing with at least two rows of rolling elements, in particular for a tunneler

The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of contact rollers disposed between raceways and guiding surfaces provided on the rings. The spacer comprises opposite inner and outer portions facing one another and at least a first lateral portion extending transversally between the inner and outer portions and connected to the portions. The inner and outer portions and the first lateral portion delimit at least partly a pocket configured to receive at least a contact roller. The inner and outer portions each comprise at least a protruding means extending outwards and having a contact surface with one of the inner and outer rings.

Spacer for rolling bearing with low friction contribution

The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least two rows of contact rollers disposed between raceways provided on the rings. The spacer comprises opposite inner and outer portions facing one another, a first lateral portion extending transversally between the inner and outer portions and connected to the portions, and a second lateral portion facing the first lateral portion and extending from the outer portion towards the inner portion. The inner and outer portions delimit together with the lateral portions a pocket configured to receive at least two superposed contact rollers. A free edge of the second lateral portion defines with the inner portion an aperture in order to open laterally the pocket on the side opposite to the first lateral portion.

Growing community of inventors

Avallon, France

Cyril Bouron