Aktiebolaget Skf

Stijn Van Eesbeek

Hendrik Anne Mol

Mathieu Hubert

Defeng Lang

Alessandro Ferrero

Alexander Mocnik

Gerrit-Jan Dop

Henricus Van Genuchten

Håkan Båstedt

Bernardus Maria Koperdraad

A bearing providing a first ring, a second ring and at least one row of rolling elements radially located between raceways disposed on the first and second ring, a single optical sensing fiber mounted in a groove provided on a surface of the first ring radially opposite to the raceway of the first ring, the fiber having at least a sensing part. The groove including a first branch extending from a first frontal surface of the first ring and being at least partially incurved along at least one radius of curvature to extend towards a circumferential groove parallel to the first frontal surface; a second branch extending from a second frontal radial surface of the first ring, axially opposite to the first frontal surface, connected to the first branch, the second branch being at least partially incurved along at least one radius of curvature.

Bearing having a single optical sensing fiber for load sensing and bearing unit comprising combined bearings

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.

Wheel hub assembly with exterior sensors positioned to avoid interference

A method for estimating a bearing load in a bearing having a first ring, a second ring and a row of rolling elements arranged between the first ring and the second ring, the method including: equipping the first ring with at least one strain sensor probe, transmitting a strain signal waveform from the at least one strain sensor probe to an electronic control unit, extracting shape information of the waveform of the strain signal using a first harmonic component (u) and a second harmonic component (v) of the strain signal, and calculating a bearing load estimation as a polynomial function of the first and second harmonic components (u, v) of the strain signal.

Method for estimating a bearing load using strain parameters to account for contact angle variation

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Doorn, Belgium

Stijn Van Eesbeek