Abstract: A wheelset bearing for a rail vehicle includes a rolling bearing assembly (7) with three bearing rings (4, 8, 9), specifically two inner rings (4, 8) provided for connection to a wheelset shaft (2) and one outer ring (9) provided for connection to a housing (6). The rolling bearing assembly (7) is designed as a quadruple-row angular contact ball bearing in an O arrangement, and two rolling element rows (16, 17) are provided contacting a first inner ring (4) in order to absorb axial forces in a first direction and two rolling element rows (18, 19) are provided contacting a second inner ring (8) in order to absorb forces in the opposite axial direction. A rail vehicle with such an arrangement is also provided.

Abstract: A wheelset bearing for a rail vehicle has a generator which is designed as a claw-pole generator, which includes at least one non-rotating claw ring, as well as a sensor system supplied with electrical energy by the generator The sensor system has a plurality of sensor system modules which are at least partially fastened to a sensor carrier placed on the claw ring and which are connected to a common data line.

Abstract: A bottom bracket, which has a shaft, a first pedal crank, which is connected in a rotationally fixed manner to the shaft, a second pedal crank, which is connected in a rotationally fixed manner to the shaft, and a chainring carrier, which is connected to the shaft. The object of providing a bottom bracket with a chainring carrier that is easy to assemble is achieved by the chainring carrier being connected in a rotationally fixed manner to a chainring shaft and by the chainring shaft being connected in a rotationally fixed manner to the shaft.

Abstract: A bottom bracket, which has a shaft, a first pedal crank, which is connected in a rotationally fixed manner to the shaft, a second pedal crank, which is connected in a rotationally fixed manner to the shaft, and a chainring carrier, which is connected to the shaft. The object of providing a bottom bracket with a chainring carrier that is easy to assemble is achieved by the chainring carrier being connected in a rotationally fixed manner to a chainring shaft and by the chainring shaft being connected in a rotationally fixed manner to the shaft.