Roller bearing for use as e.g. grooved ball bearing, has force measuring unit provided with force sensor held in bearing cage in place of roller bodies, where force sensor wirelessly transmits sensor signals to evaluation device

摘要

The bearing (1) has roller bodies (5) i.e. ball rollers, shifted between thrust rings (2, 3) and held over a circumference in a bearing cage (4) in a distributed manner. A force measuring unit (6) detects force acting between the thrust rings and is provided with a force sensor (8) and an evaluation device (7). The force sensor is held in the bearing cage in place of the roller bodies. The force sensor wirelessly transmits sensor signals to the evaluation device. The force sensor is formed by a capacitor that changes capacitance dependent on force applications. The thrust rings are designed as a fixed outer ring and a rotary inner ring.