A torque sensor system is provided, which comprises a frame supporting a first shaft and a second shaft. The first shaft comprises a first connector that is connected to second connector comprised by the second shaft so that a torque is transmittable via the first and second connectors from the first shaft to the second shaft. The first connector and second connector are formed such that transmitting a torque induces a reaction force to the frame. The frame is provided with at least one load sensor that is adapted to measure the reaction force, such that an output of the load sensor represents the transmitted torque.