Power transmission elements, torque measuring device and freewheel assembly

A measuring device for determining a force acting on a crankshaft, comprising:

• a crankshaft with a bearing arranged on the crankshaft;
• a load cell comprising
• a receiving sleeve for receiving an outer ring of the bearing,
• a fastening ring for attaching the load cell in a transmission housing,
• axial support areas provided on the fastening ring for axially supporting the outer ring of the bearing, and
• measuring regions for receiving radial forces of the receiving sleeve and which connect the receiving sleeve with the fastening ring, wherein strain sensors are attached to at least two of the measuring regions,
• wherein the axial support areas are separated from the measuring regions by radial slots, and wherein the axial support areas are each separated from the receiving sleeve by a circumferential slot, wherein a first radial slot, a circumferential slot and a second radial slot together form a confining slot which separates an axial support area from the receiving sleeve and from adjacent measuring regions and wherein the axial support areas project radially inwardly over an inner surface of the receiving sleeve, and
• wherein the receiving sleeve of the load cell is arranged on the outer ring of the bearing, and wherein the axial support areas of the load cell are supported in an axial direction on the outer ring of the bearing;
• and
• an evaluation electronics which is connected to the strain sensors of the load cell.

A transmission arrangement comprising:

• a transmission housing;
• a crankshaft, wherein the crankshaft is mounted in the transmission housing via a first bearing and a second bearing;
• and
• a measuring device for determining a force acting on the crankshaft, the measuring device comprising
• a load cell comprising
• a receiving sleeve for receiving an outer ring of the first bearing,
• a fastening ring for attaching the load cell in the transmission housing,
• axial support areas provided on the fastening ring for axially supporting the outer ring of the first bearing, and
• measuring regions for receiving radial forces of the receiving sleeve and which connect the receiving sleeve with the fastening ring, wherein strain sensors are attached to at least two of the measuring regions,
• wherein the axial support areas are separated from the measuring regions by radial slots, and wherein the axial support areas are each separated from the receiving sleeve by a circumferential slot, wherein a first radial slot, a circumferential slot and a second radial slot together form a confining slot which separates an axial support area from the receiving sleeve and from adjacent measuring regions and wherein the axial support areas project radially inwardly over an inner surface of the receiving sleeve, and
• wherein the receiving sleeve of the load cell is arranged on the outer ring of the first bearing, and wherein the axial support areas of the load cell are supported in an axial direction on the outer ring of the first bearing;
• and
• an evaluation electronics which is connected to the strain sensors of the load cell,
• wherein the first bearing is received in the transmission housing via the load cell of the measuring device, wherein the load cell is received in the transmission housing via the fastening ring, wherein the receiving sleeve receives the outer ring of the first bearing.