A wheel hub permits mounting a vehicle wheel on a wheel axle. The wheel hub has a hub body and a roller bearing unit for mounting the hub body on an axle journal of the wheel axle, wherein the roller bearing unit has annular roller bearings for engaging the axle journal, each comprising an outer ring, an inner ring and a plurality of rolling elements. The wheel hub also includes at least one measurement ring arranged to be axially adjacent to at least one of the inner rings for engaging the axle journal, wherein the measurement ring includes at least one measurement setup for measuring strain and/or compression.

A coated bearing component comprising a metallic part and a coating deposited on the metallic part. The coating is a multi-layer coating having a sensor active layer made of a material having electrostrictive properties. The sensor active layer is directly coated on the metallic part. The bearing component can be integrated into a bearing.

In a vehicle suspension assembly a sensorized system applied to a wheel hub unit, in which radially outer cylindrical surface of an outer ring of the wheel hub unit configured for coupling to a suspension upright or knuckle has four circumferential flats formed to be angularly spaced from each other on the radially outer lateral cylindrical surface, each flat delimiting a plane surface which extends axially over a pair of annular tracks for rolling bodies of the outer ring; each flat carries integrally a sensor module including a pair of extensometers positioned parallel to each other and each at the position of a respective annular track, orientated in a circumferential direction so as to extend along a circumferential development of the annular track; an electrical circuit picks up a signal from each sensor module and sends it to a data socket carried by the suspension upright or knuckle.

A bearing assembly monitoring system includes a bearing assembly supporting rotation of a rotating member. The bearing assembly includes a fixed portion and rotatable portion. A piezoelectric element is mounted to the fixed portion and generates an electric signal in response to a vibration of the fixed portion. A first transceiver is electrically coupled to the piezoelectric element to receive the electrical signal generated by the piezoelectric element and generate a signal indicative of the vibration of the fixed portion. A gas turbine engine bearing monitoring system and a method are also disclosed.

A trunnion roller thrust measurement assembly includes a trunnion roller assembly and a thrust measurement assembly. The trunnion roller assembly includes a roller configured to provide rotary support of a rotary drum; a shaft attached to the roller, the shaft being aligned with an axis of rotation of the roller; and a bearing housing configured support an end of the shaft. The thrust measurement assembly includes a bearing housing end cap attachable to an end of the bearing housing; and one or more thrust sensors disposed on the bearing housing end cap. The one or more thrust sensors are configured to sense a thrust force exerted on the bearing housing end cap by an axial displacement of the shaft. An adjustment mechanism is utilized to skew the roller based on the sensed thrust force.

The invention relates to a measuring device for determining force and/or torque on a torque-transmitting shaft which is supported by a bearing device, in particular a machine, the output and/or input shaft of which is formed by the torque-transmitting shaft. The measuring device has at least two, preferably three or four, piezoelectric elements and a fixing device, wherein the fixing device supports the piezoelements and is designed in such a way that a force, in particular shear force, can be measured between the bearing device and a supporting device for supporting the bearing device by means of the piezoelements.

A six-axis Force Torque Transducer (FTT) including a hub and at least one flexural beam disposed on the hub and extending outwardly from the hub. Each of the at least one flexural beams including a U-beam having a substantially U-shaped cross section and at least one beam plate attached to the U-beam at a portion of the U-beam that is remote from the hub. A first strain gauge carrier, including at least one strain gauge, is mounted on an exterior surface of the at least one U-beam. A second strain gauge carrier, including at least one strain gauge, is mounted on an exterior surface of the at least one beam plate. A connection element electrically connects the strain gauges of the first strain gauge carrier and the strain gauges of the second strain gauge carrier in a bridge configuration.

In a force sensor, a cylindrical movable body can be moved with respect to a cylindrical main body. A strain body is fixed to the main body and the movable body, and can be deformed in accordance with the movement of the movable body. Strain sensors are provided on the strain body. At least three circular openings are provided in the circumferential surface of the movable body at equal intervals. Stoppers are respectively arranged inside the openings, and each of which includes a first side surface having a first outer diameter smaller than an inner diameter of the opening, and a second side surface having a second outer diameter smaller than the first outer diameter. Fixing members fix the stoppers to the main body.

Provided is a torque sensor that includes: a bearing that is provided with an inner ring and an outer ring that are supported so as to be relatively movable only in the direction of rotation about a predetermined axis; a connecting member that is provided with fixing sections that are respectively fixed to the inner ring and the outer ring and a strain generation section that connects between the fixing sections; and a strain sensor that is disposed on the connecting member so as to be capable of detecting a strain at least in the circumferential direction.

A physical disturbance sensor includes a plurality of piezoresistive elements configured in a resistive bridge configuration. A signal transmitter is electrically connected to the physical disturbance sensor and configured to send an encoded signal to the piezoresistive elements of the resistive bridge configuration. A signal receiver is electrically connected to the piezoresistive elements and configured to receive a signal from the physical disturbance sensor. The received signal from the physical disturbance sensor is correlated with the sent encoded signal in determining a measure of physical disturbance.