Aktiebolaget Skf

Sylvain Chaussat

Vincent Sausset

Pierrick Maze

Florian Barcat

Yves-André Liverato

Jens Graf

Arnaud Pinon

François Niarfeix

Nicolas Guinamard

The bearing comprises a first ring () and a second ring () centered on an axis, each of the first and second rings being provided with an outer cylindrical surface (), with an inner cylindrical surface (), and with lateral faces () which axially delimit the outer and inner cylindrical surface. One of the inner and outer cylindrical surfaces () and/or one of the lateral faces () of the first ring comprise a textured area () provided with at least two first and second parallel grooves extending radially and axially, with a single inner protrusion disposed between and along the two parallel first and second grooves, with a first lateral outer protrusion disposed alongside the first groove, and with a second lateral protrusion disposed alongside the second groove, the first and second lateral outer protrusions extending respectively along the first and second grooves.

Bearing and associated sensor bearing unit

A sensor bearing unit includes a bearing, which has a first ring and a second ring, both rings being centered on an axis, and an impulse ring. The impulse ring includes a target holder, a target mounted on the target holder, and a sleeve secured to the first ring of the bearing. The sleeve is provided with an axial portion having at least one radial protrusion and a collar extending at least partially radially. The target holder is mounted radially around the axial portion of the sleeve and axially between the first ring of the bearing and the collar of the sleeve. The at least one radial protrusion of the sleeve axial portion extends into a complementary recess provided on the target holder.

Sensor bearing unit with improved breaking torque and method of manufacturing thereof

The bearing provides a first ring and a second ring centered on an axis, each of the first and second rings being provided with an outer cylindrical surface, with an inner cylindrical surface, and with lateral faces that axially delimit the outer and inner cylindrical surface. One of the inner and outer cylindrical surfaces and/or one of the lateral faces of the first ring includes a textured area provided with a groove extending circumferentially and with two protrusions disposed one on each side of the groove and extending along the groove.

A condition monitoring device configured to be mounted on a machine for sensing, for example, vibrations produced by the machine during operation, includes a base, a printed circuit board assembly lying in a first plane, and first and second fasteners, each having a longitudinal axis, lying in a second plane perpendicular to the first plane, the first and second fasteners extending through the printed circuit board assembly and into the base. A third plane is perpendicular to the first and second planes and is located halfway between the longitudinal axes of the first and second fasteners. An integrated power supply is connected to the printed circuit board assembly, and at least two active sensing cells, such as vibration sensors, are arranged symmetrically relative to the second plane and/or symmetrically relative to the third plane.

Wireless machine condition monitoring device

A bearing unit having a bearing centered on a central axis and including a rotating inner ring, a non-rotating outer ring, and at least one row of rolling elements arranged between the rings. The bearing unit further includes an impulse ring including a target holder that radially extends from the rotating inner ring and radially beyond the outer ring, a target that is fixed to an outer periphery of the target holder beyond the outer ring and that is adapted to cooperate with a detection device for tracking the rotation of the impulse ring around the central axis, and a fixing sleeve.

Bearing unit including an impulse ring and apparatus comprising at least one such bearing unit

A bearing device, comprising a bearing including an inner ring and an outer ring centered on a central axis, an impulse ring including a target holder which is fixed to the inner ring and extends beyond the outer ring radially to the central axis, and a target which is fixed to the target holder beyond the outer ring and is adapted to cooperate with detection means for tracking the rotation of the impulse ring around the central axis, and shifting means for axially shifting the impulse ring relative to the outer ring; the shifting means are distinct from the target holder. A sensor-bearing unit and an apparatus comprising at least one such bearing device are also disclosed and claimed.

Bearing device, a sensor-bearing unit and an apparatus comprising at least one such bearing device

A bearing assembly for rotatively holding a shaft with respect to a support member and comprises: a bearing, with a rotatable ring and a fixed outer ring to be immobilized within a housing of said support member. An encoder washer is fast in rotation with the rotating ring. At least one sensor is adapted to detect at least one rotation parameter of the encoder washer and a sensor body holds this sensor. An annular flange is used for mounting said sensor body with respect to the fixed outer ring. The annular flange has a first skirt and a second skirt which define, between them and a bottom wall of the flange, an annular recess for accommodating at least a part of the sensor body. In mounted configuration of the bearing assembly, the first and second skirts extend respectively towards the rotatable and fixed rings.

Bearing assembly and rotary electric machine comprising such a bearing

This support member () is for holding at least two sensors with respect to an encoder washer and forms one housing (V) adapted to accommodate the sensors next to each other. This housing (V) has at least two abutment surfaces (A-E,A-E) for positioning each of said sensors along two perpendicular directions (R, R'). The rotation detection set comprises an encoder washer adapted to rotate around a rotation axis, at least two sensors adapted to detect the rotation of the encoder washer around the rotation axis and a support member (). The sensors are mounted in the housing (V) of the support member and immobilized within the housing.

Support member, detection set comprising such a support member, manufacturing method of such a detection set and bearing assembly including such a detection set

A rotation detection set comprises an encoder washer rotatable around a rotation axis, at least one sensor adapted to detect a rotation parameter of the encoder washer through an air gap, a support member for holding the sensor with respect to the rotation axis and a mounting member for immobilizing the support member with respect to a fixed structure. The mounting member is made of one piece of magnetic material and has a first wall located on the same side of the air gap as the encoder washer and a second wall located on the same side of the air gap as the sensor whereas a magnetic body of the encoder washer, the air gap and the sensor are located in a volume defined by the mounting member between the two walls.

Rotation detection set and bearing assembly comprising such a detection set

Instrumented rolling bearing device of the type including a non-rotating race, a rotating race, at least one row of rolling elements arranged between two raceways of the rotating and non-rotating races, and an assembly for detecting rotation parameters including a non-rotating sensor assembly and a rotating encoder, and an elastic member intended for axially prestressing the rolling bearing, retained axially on the sensor, the elastic member being of annular shape and having a diameter smaller than or equal to that of the outer race of the bearing, the elastic member including a supporting surface designed to be in contact with an element outside the bearing device in order to exert, directly or indirectly, by reaction, an axial force on the non-rotating race in a direction opposite to the detection assembly.

Growing community of inventors

Tours, France

Sylvain Chaussat