Patent ID: 6920801

Claim:
Measurement system for differential load sensing of axial and radial load on a bearing ( 10 ), the measurement system ( 20 ) comprising a processing unit ( 21 ), a memory unit ( 22 ) connected to the processor unit ( 21 ), and a measurement device ( 1 ) connected to the processing unit ( 21 ), the measurement device ( 1 ) comprising an inner ring ( 11 ), an outer ring ( 12 ) and a plurality of rolling elements ( 13 ) between the inner and outer ring, characterised in that the measurement device ( 1 ) further comprises a sensor ring ( 3 ) which may be positioned adjacent to and in close contact with the inner ring ( 11 ) or outer ring ( 12 ) of the bearing ( 10 ), the sensor ring ( 3 ) having at least two weakenings ( 2 ) at its circumference and at least one respective sensor ( 5 ) being positioned in each of the at least two weakenings ( 2 ), the processing unit ( 21 ) being arranged for calculating the axial and radial load on the bearing ( 10 ), the radial load being derived from the difference value of measurement signals from the at least two sensors ( 5 ) and the axial load being derived from a change of the average value of the measurement signals from the at least two sensors ( 5 ).