A device for capturing and transmitting data of a bearing of a steel mill or rolling mill includes a sensor with a data processing unit arranged in a bearing housing capturing and storing data of a bearing. A data transmission unit in the bearing housing wirelessly transmits data of the sensor to a remote receiver. An energy receiving unit in the bearing housing receives energy wirelessly and transmits it to the data transmission unit and the data processing unit. An energy source with an energy transmitting unit arranged outside the bearing housing supply the energy unit wirelessly. The energy transmitting unit is covered by the bearing housing and is arranged on or in a structural part which adjoins the bearing housing and is part of the supporting structure of mill and remains on the supporting structure of the mill when the bearing housing is removed for maintenance purposes.

A measuring device with a crankshaft and a load cell for determining a radial force acting on the crankshaft having a receiving sleeve for receiving a bearing ring and a fastening ring for attaching the load cell in a transmission housing. Axial support areas are provided on the fastening ring for axially supporting the outer ring of the first bearing. Moreover, measuring regions for receiving radial forces of the receiving sleeve are provided which connect the receiving sleeve with the fastening ring. Strain sensors are attached to at least two of the measuring regions. An evaluation electronics is connected to the strain sensors.

A bearing device is provided which achieves both creep resistance and electrolytic corrosion resistance. At least one of the radially inner surface of the inner ring and the radially outer surface of the outer ring is covered with a coating layer. The coating layer is a coating layer composite composed of a plurality of layers. Of the plurality of layers, the surface layer is composed of an anti-creep film having lubricity, and at least one layer other than the surface layer is composed of an insulating film having insulating properties.

A load-variable rolling bearing includes: an outer ring having an outer ring raceway surface with spherical surface contact portions having concave arch sections and a variable contact portion having a shape of a cylinder in such a manner as to be adjacent to the spherical surface contact portions in an axial direction of the spherical surface contact portions; an inner ring having an inner ring raceway surface with spherical surface contact portions having concave arch sections and a variable contact portion having a shape of a cylinder in such a manner as to be adjacent to the spherical surface contact portions in an axial direction of the spherical surface contact portions; and a plurality of rolling elements each having a cylindrical variable contact portion and spherical surface portions formed with convex spherical surfaces on both sides of the variable contact portion.

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.

Casing of a bearing unit for food applications, made of polymeric material and provided internally with a spherical seat for housing the bearing unit, the casing having a reinforcement in the form of a metal ring co-moulded inside the casing and accommodated around the spherical seat of the casing.

A rolling bearing device includes a rolling bearing that includes an outer ring having an inner peripheral surface on which a first raceway surface is provided, an inner ring having an outer peripheral surface on which a second raceway surface is provided, and rolling elements interposed between the first and the second raceway surfaces; a strain sensor configured to detect a strain of the rolling bearing; and a fixation portion configured to fix the strain sensor to a peripheral surface that includes at least one of an outer peripheral surface of the outer ring and an inner peripheral surface of the inner ring. The fixation portion fixes at least two locations in the strain sensor to the peripheral surface such that a detection region of the strain sensor and the peripheral surface are not fixed to each other, the at least two locations facing each other across the detection region.

A bearing apparatus includes two bearings that rotatably support a main spindle, a spacer arranged between the two bearings, and a communication module arranged in the spacer. The bearing includes an inner ring and an outer ring made of a metal and a plurality of rolling elements arranged between the inner ring and the outer ring. The communication module contains a plurality of sensors and a communication apparatus that wirelessly transmits a result of detection by the sensors. An outer dimension of the inner ring of the bearing is set to be smaller than an inner dimension of the outer ring of the bearing. The rolling element is made of silicon nitride through which electromagnetic waves can pass.

A wheel hub assembly includes inner and outer hubs rotatably coupled by first and second ballsets of rollers. A plurality of sensors for sensing strain within the outer hub generated by the ballsets are disposed on exterior mounting surface sections. These surface sections are located at radial spacing distances within empirically derived radial boundaries to prevent interference from one ballset affecting the measurements taken by sensors monitoring the other ballset. To prevent excessive distortion of strain measurements taken through the outer hub, a certain amount of hub material is required to smooth signals generated by the first and second rollers passing proximal to each sensor, thus affecting the radial location of the mounting surfaces. Further, the sensor mounting surface sections are also located within empirically derived axial boundaries determined to enable each sensor to sense strain from one ballset while avoiding the detection of strain generated by the other ballset.

A sensorized supporting device for bearings (1) comprises: • a bearing housing (2), configured for being secured to a mounting structure and defining at least one seat (2c) for a bearing (3); and • a sensorized supporting base (4), having a supporting body (4′) prearranged for being at least partially positioned between the mounting structure (S) and the bearing housing (2). The supporting body (4′) has a detection surface (4c) which extends in a longitudinal direction (L) and a transverse direction (W) and is configured for resting, directly or via interposition of at least one further element, on a corresponding surface of one of the bearing housing (2) and the mounting structure, the supporting base (4) being provided with a mechanical-stress sensor. The mechanical-stress sensor comprises at least one piezoelectric transducer (10.sub.1, 10.sub.2, 20) defining at least part of the detection surface (4c), the at least one piezoelectric transducer (10; 20; 10.sub.1, 10.sub.2) being configured for generating an electrical potential difference that is substantially proportional to the magnitude of a mechanical stress (SS) applied to the bearing housing (2).