An actuator for a rotorcraft, the actuator comprising: a joint and a control rod for a tail rotor , the control rod coupled to the joint such that a torque applied to the control rod is transferred to the joint , the joint comprising: a housing configured to be coupled to an input lever of the actuator ; a rotary bearing coupled to the housing , the rotary bearing comprising an inner race and an outer race and the rotary bearing being coupled to the control rod , characterised in that : the control rod is rotationally fixed relative to the joint until the torque applied to the joint via the control rod exceeds a threshold torque value; and the joint comprises at least one shearing element coupled to the rotary bearing to rotationally fix the inner race and outer race relative to each other, wherein the at least one shearing element is configured to break when a torque applied to the joint exceeds the threshold torque value such that there is a relative rotatability between the inner race and the outer race and the control rod becomes rotatable with the inner race and/or outer race due to their relative rotatability. a joint and a control rod for a tail rotor , the control rod coupled to the joint such that a torque applied to the control rod is transferred to the joint , the joint comprising: a housing configured to be coupled to an input lever of the actuator ; a rotary bearing coupled to the housing , the rotary bearing comprising an inner race and an outer race and the rotary bearing being coupled to the control rod , characterised in that : the control rod is rotationally fixed relative to the joint until the torque applied to the joint via the control rod exceeds a threshold torque value; and the joint comprises at least one shearing element coupled to the rotary bearing to rotationally fix the inner race and outer race relative to each other, wherein the at least one shearing element is configured to break when a torque applied to the joint exceeds the threshold torque value such that there is a relative rotatability between the inner race and the outer race and the control rod becomes rotatable with the inner race and/or outer race due to their relative rotatability. a housing configured to be coupled to an input lever of the actuator ; a rotary bearing coupled to the housing , the rotary bearing comprising an inner race and an outer race and the rotary bearing being coupled to the control rod , characterised in that : the control rod is rotationally fixed relative to the joint until the torque applied to the joint via the control rod exceeds a threshold torque value; and the joint comprises at least one shearing element coupled to the rotary bearing to rotationally fix the inner race and outer race relative to each other, wherein the at least one shearing element is configured to break when a torque applied to the joint exceeds the threshold torque value such that there is a relative rotatability between the inner race and the outer race and the control rod becomes rotatable with the inner race and/or outer race due to their relative rotatability. the control rod is rotationally fixed relative to the joint until the torque applied to the joint via the control rod exceeds a threshold torque value; and the joint comprises at least one shearing element coupled to the rotary bearing to rotationally fix the inner race and outer race relative to each other, wherein the at least one shearing element is configured to break when a torque applied to the joint exceeds the threshold torque value such that there is a relative rotatability between the inner race and the outer race and the control rod becomes rotatable with the inner race and/or outer race due to their relative rotatability. <EOS>