Aktiebolaget Skf

Jean-Baptiste Magny

Pascal Ovize

Cyril Bouron

Jean-Baptiste Noirot

Pascal Vioux

Bruno Capoldi

Jesko-Henning Tanke

The spacer for rolling bearing comprises an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways provided on the rings. The spacer comprises two opposite faceshaving a concave profile adapted to the rollers, at least one of said faces comprising two contact surfaceswith the associated roller and a concave recessextending between said contact surfaces and directed outwards towards said roller.

Spacer for rolling bearing, notably used in a wind turbine

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.

The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways and guiding faces provided on the rings. The spacer comprises opposite inner and outer partsand opposite lateral flangesrespectively adapted to come into contact with the raceways and the guiding faces of the rings. Said inner and outer parts and/or said lateral flanges comprise at least a contact surfacewith one of the rings and a concave recessdirected outwards towards said ring.

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

A rolling bearing including an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways provided on the rings, each roller comprising a rolling surface in contact with said raceways and two opposite end faces. The inner and outer rings having guiding faces coming into contact with the end faces of the rollers.

Rolling bearing, notably used in a wind turbine

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

Migé, France

Jean-Baptiste Magny