Aktiebolaget Skf

Bruno Capoldi

Herve Dondaine

Vincent Bredoire

Siegfried Derrer

Juliette Delaby

David Ragot

David Bertrand

Pascal Ovize

Jean-Baptiste Magny

Cyril Bouron

Michel Nicolas

Marie-Joelle Huot-Marchand

Jean-Baptiste Noirot

Eric Robba

Matthias Krebs

Lionel Martin

A bearing provides an outer ring and an inner ring capable of rotating concentrically relative to one another, at least one of the inner and outer rings being split into a plurality of successive circumferential ring segments. For each pair of facing ends of adjacent successive ring segments of the split-ring, one of the facing ends includes at least one protrusion made in one part with the associated ring segment and protruding into a recess of complementary shape formed onto the other facing end to align the pair of facing ends in radial direction.

Bearing with at least one segmented ring

A rolling bearing comprising a first ring, a second ring, at least one row of rolling elements arranged between axial raceways provided on the rings, at least one plate bearing against one of the first and second rings to close the bearing. At least one of the rolling elements is a sensorized rolling element. At least one through-window is made in the axial thickness of the at least one plate. The rolling bearing further comprises at least one antenna facing the at least one window.

Rolling bearing comprising at least a sensorized axial rolling element, machine comprising said bearing a process for controlling said machine

The bearing includes a first ring, a second ring, at least one row of radial and axial rolling elements arranged between axial and radial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway and with the radial raceway of the second ring. The bearing further provides at least one cage for maintaining the row of axial rolling elements, at least one flange for guiding and maintaining the cage in radial direction, and a plurality of fixing screws to secure the flange to the first ring. The flange axially abuts against a flat surface of the first ring. The fixing screws extend axially through the flat surface of the first ring.

Rolling bearing with a guiding flange for a cage

A rolling bearing provides a first ring and a second ring capable of rotating concentrically relative to one another, at least one row of radial rolling elements radially interposed between raceways of the rings, and at least one row of axial rolling elements axially interposed between raceways of the rings. The rolling bearing further provides, axially on each side, at least one row of rolling elements radially interposed between raceways of the first and second rings.

Rolling bearing, notably large-diameter rolling bearing

A rolling-element bearing includes first and second rings having axial and radial raceways and a row of first radial rolling elements between the axial raceways. At least one row of axial rolling elements is located between a first radial raceway of the first ring and a first radial raceway of the second ring and radially located between an axial guiding face of the first ring and an axial guiding face of the second ring. The axial rolling elements are mounted in the pockets of a cage having a plurality of cage segments, and at least one second radial rolling element is circumferentially interposed between two adjacent cage segments of the plurality of cage segments and radially interposed between the axial guiding faces.

Rolling-element bearing, notably large-diameter rolling-element bearing

The bearing includes a first ring, a second ring, at least one row of radial and axial rolling elements arranged between axial and radial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway and with the radial raceway of the second ring. The bearing further provides at least one cage for maintaining the row of axial rolling elements and at least one flange for guiding and maintaining the cage in radial direction. The flange axially abuts against a flat surface of the second ring. The bearing further includes a plurality of fixing screws to secure the flange to the second ring, the fixing screws extending axially through the flange.

Rolling bearing with guiding flange for cage

A bearing includes a first ring, a second ring, at least one row of axial rolling elements, and at least one row of radial rolling elements arranged between axial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway of the second ring. The bearing further includes at least one thrust ring delimiting a radial raceway for the axial rolling elements, and at least one spring system to axially push the thrust ring. The thrust ring is axially disposed between the axial rolling elements and the nose. The spring system is mounted on the nose. The groove of the first ring delimits a radial raceway for the axial rolling elements.

Rolling bearing with spring system

A bearing providing a first ring assembly and a second ring assembly, the first ring assembly including at least a first ring and an outer cap reversibly fixed to first ring. The bearing further providing at least one sealing element mounted radially into a cylindrical surface of the first ring assembly and provided with a sealing lip in sliding frictional contact with the second ring assembly. The bearing including at least one adjusting shim mounted radially between the first and second ring assemblies, the adjusting shim being axially located between the outer cap of the first ring assembly and the sealing element; or between the first ring of the first ring assembly and the sealing element.

Bearing with at least one sealing element and at least one adjusting shim for axially displacing said sealing element

A bearing including a bearing ring having an annular base and a plurality of gear teeth integrally formed with the annular base. Each gear tooth of the plurality of gear teeth includes a first flank surface extending substantially radially from the annular base, a top land surface extending substantially in the axial direction, and a chamfered surface between the top land surface and first flank surface. The chamfered surface includes a first arc with a first radius in a range of 0.1 to 0.15 times the gear module of the bearing ring. The first arc has a point of tangency with the first flank surface. The chamfered surface has length P extending in the radial direction between the point of tangency and the top land surface, and P is in the range of 0.1 to 0.15 times the gear module of the bearing ring.

Gear tooth chamfer for an annular gear

A bearing includes first and second rings and a plurality of rolling elements supporting the rings for relative rotation. At least the first ring is an axially split ring formed from a first part and a second part stacked against other in the axial direction. The first part includes first tapered through-holes and the second part includes second tapered through-holes axially aligned with the first tapered through-holes, and a plurality of taper pins extend in the aligned tapered through-holes of the first and second parts. Each of the taper pins has a threaded end portion, each of the taper pins contacts the first and second tapered through-holes, and a plurality of nuts are screwed onto the threaded end portions of the taper pins.

Rolling bearing, in particular, a large-diameter rolling bearing

A rolling bearing includes a first ring, a second ring, at least one row of axial rolling elements arranged between the first ring and the second ring, and at least one thrust ring axially interposed between the axial rolling elements and the first ring and delimiting a raceway for the axial rolling elements. At least one spring system axially biases the thrust ring against the axial rolling elements and includes a piston housed in a through-hole of the first ring and a spring element pressing the piston against the thrust ring. The piston includes a threaded hole accessible from outside the first ring.

Rolling bearing with spring biased thrust ring, and method for measuring an axial clearance of a rolling bearing having a thrust ring

A rolling bearing includes an inner ring and an outer ring, at least the inner ring or the outer ring being split into a plurality of successive circumferential ring segments. The rolling bearing further includes at least one alignment member circumferentially interposed between each pair of facing ends of the successive ring segments of the split-ring. The alignment member being secured onto a first one of the facing ends and protruding into a recess formed onto a second one of the facing ends to align the pair of facing ends in radial and axial directions.

A rolling bearing including an inner ring, an outer ring and a middle ring, the rings being concentrically arranged around a central axis so that the middle ring is arranged radially between the inner ring and the outer ring, at least one row of rolling elements interposed between the inner ring and the middle ring, at least one row of rolling elements interposed between the middle ring and the outer ring. The inner ring provides a radially inner circumferential portion with a gear toothing and the outer ring having a radially outer circumferential portion with a gear toothing.

Rolling bearing comprising three concentric rings

Bearing assembly of large diameter or of the slewing type, including an inner ring and an outer ring, at least one sealing ring with an axis installed on one of the inner and outer rings, for sealing a gap between the inner and outer rings and comprising: a lip portion designed in rubbing contact with the other of the inner and outer rings, a root portion at least partly engaged with an interference fit inside a holding recess arranged on a stabilizing surface of the one of the inner and outer rings, the root portion having a main lip and at least one secondary lip, the lips applying a contact pressure inside the holding recess in order to anchor the root portion on the one of the inner and outer rings, characterized in that the holding recess comprises two blocking grooves inside which the main lip is engaged with a contact pressure.

Growing community of inventors

Charentenay, France

Bruno Capoldi