The invention relates to a rolling bearing with two bearing rings and rolling elements running between same, and a sensor for detecting movements and/or positions of the bearing rings relative to one another, wherein the sensor is fastened to one of the bearing rings and is directed towards a measurement surface on the other bearing ring, wherein said measurement surface comprises a contour projection projecting towards the sensor and/or a contour recess open towards the sensor in the form of a groove or blind hole, which projection or groove influences the measurement signal of the sensor and the movement of which relative to the sensor transverse to the main signal direction of the sensor modifies the measurement signal of the sensor.

A system for the axial retention of a holding ring for a bearing for guiding in rotation a rotary shaft of a turbomachine is disclosed. The system includes an annular bearing support and a bearing holding ring that is borne by the annular bearing support. The bearing holder ring includes an upstream ring configured to be brought into contact with the bearing support and a downstream ring that is elastically deformable. The bearing support has a first axial retention element, and the bearing holding ring has a second axial retention element. The first and second axial retention elements are configured to cooperate with one another to axially retain the bearing holding ring in the event of damage to the downstream ring.

A bearing ring having a main part ring provided with at least one groove formed a surface of the main part ring. The bearing ring further provides at least one fiber sensor mounted inside the groove. The bearing ring also include at least one counterpart ring mounted into the groove of the main part ring and coming into contact with the fiber sensor to maintain the fiber sensor against a groove bottom, the counterpart ring being secured to the main part ring.

A roller bearing assembly for determining loads on a roller bearing includes a roller bearing having coaxial inner and outer rings and an axis of rotation, and a plurality of rollers each having a rotation axis being arranged between the rings. At least one ring has recess for receiving a force-measuring pin. A force-measuring pin is received in the recess. The longitudinal axis of the force-measuring pin extends at least partly along the axis of rotation of the roller bearing. The recess and the force-measuring pin extends into a region, which is under a load, of the ring that has the recess such that at least one vertical projection plane perpendicular to the rotation axis of the rollers extends along the force-measuring pin and a region of maximum load. This allows loads to be reliably measured.

Sensorised wheel hub unit and a method for detecting, in real time, forces and moments applied to an outer ring of the wheel hub unit in which piezoresistive ceramic plates are made of one piece with welded metal plates housed within respective recesses formed in an outer surface of the outer ring over respective races for rolling elements in such a way that there is a gap between the plates and a base wall of each recess; in which the temperature of the outer ring and the amplitude and frequency of first electrical signals (S1) associated with the sensors relating to the same race are analysed to determine a frequency value equal to the frequency of the first signal having the maximum amplitude and as many amplitude values (D1-Dn) as there are sensors associated with that race and each equal to the maximum amplitude of the first signal from each sensor, corrected according to the temperature.

A sensor module includes a metal member having a side surface extending in a ring shape, and a recess recessed from the side surface and extending in a ring shape along the side surface, a resin part filling an inside of the recess, a radiating part provided in the resin part and configured to emit radio waves, a radio communication device provided in the resin part and electrically connected to the radiating part, and a sensor electrically connected to the radio communication device. The metal member is insulated from the radiating part by the resin part, and functions as a passive element.

A system for measuring angle adjustment of a hookspanner wrench to accurately tighten a bearing onto a shaft, the shaft having an adapter sleeve mounted thereon, the adapter sleeve having a threaded and tapered portion. The system including a device providing a hookspanner wrench having a lever arm and an engaging portion, the engaging portion of the hookspanner wrench configured to engage a bearing locking nut, the lever arm configured to mount a storage clamping device fixed thereto, a smartphone secured in place by the storage clamping device, and a specialized application stored on the smartphone that provides a built-in inclinometer and look up data tables.

A bearing unit is provided with a strain element for torque detection. The strain element is provided with a first annular part attached to a rotation-side member, a second annular part attached to a load-side member, and a plurality of ribs serving as strained parts linking the first annular part and the second annular part together. One of an inner race and an outer race is integrally formed on the first annular part of the strain element. Deformation, which occurs in the ribs of the strain element due to torque exerted on the rotation-side member from the load-side member, is detected by a strain gauge, etc., and converted to torque. The strain element for torque detection can be incorporated into a motor, a reducer, or another rotary propulsion unit without the need for a dedicated installation space and without the need for fastening fittings, etc.

Sensorised wheel hub unit and a method for detecting, in real time, forces and moments applied to an outer ring of the wheel hub unit in which piezoresistive ceramic plates are made of one piece with welded metal plates housed within respective recesses formed in an outer surface of the outer ring over respective races for rolling elements that there is a gap between the plates and a base wall of each recess; the temperature of the outer ring and the amplitude and frequency of first electrical signals (S1) associated with the sensors relating to the same race are analysed to determine a frequency value equal to the frequency of the first signal having the maximum amplitude and as many amplitude values (D1-Dn) as there are sensors associated with that race and each equal to the maximum amplitude of the first signal from each sensor, corrected according to temperature.

A sensor arrangement for indirect detection of a torque of a rotatably mounted shaft includes a sensor with at least one sensor element arranged in the surroundings of a bearing of the shaft. The bearing is linked to a supporting structure. The sensor element is configured to detect a proportion of a bearing force acting in a predetermined direction. The torque of the shaft is configured to be calculated from the acting proportion of the bearing force. The sensor has at least one sensor body with an outer contour that supports a corresponding sensor element and is pressed into a receiving hole. The sensor element has a predetermined distance and a predetermined angle to the bearing.