SENSOR ROLLER AND BEARING ASSEMBLY

摘要

The invention relates to a sensor roller (10a) and to a bearing assembly, the bearing assembly including an inner ring (16), an outer ring (14) and a plurality of rollers 10 including said sensor roller (10a) is arranged in a cage (18) between the inner ring (16) and the outer ring (14), wherein the sensor roller (10a) is provided with a bore (24) accommodating a sensor unit (26) and at least a part of a generator assembly (28) and wherein said part of the generator assembly (28) is configured to interact with said cage (18) in order to generate energy out of a relative rotation between the cage (18) and the roller. It is proposed that said interaction is a magnetic interaction.