Integrated torque limiter/no-back device

An integrated torque limiter/no-back device for use in an actuator with an input shaft driven by a power drive unit, an output and gear reduction for transmitting rotary motion from the input shaft to the output, the device comprising:

• an input ramp;
• an output ramp coupled to the gear reduction;
• a combined ramp disposed between the input ramp and the output ramp, wherein the combined ramp comprises a unitary body having a first face and a second face opposite the first face;
• a first plurality of balls between the input ramp and the combined ramp that engage the first face of the unitary body, each ball of the first plurality of balls simultaneously contacting the input ramp and the combined ramp, wherein the input ramp, the combined ramp, and the first plurality of balls are configured to transfer torque between the input ramp and the combined ramp;
• a second plurality of balls between the combined ramp and the output ramp that engage the second face of the unitary body, each ball of the second plurality of balls simultaneously contacting the combined ramp and the output ramp, wherein the combined ramp, the output ramp, and the second plurality of balls are configured to transfer torque between the combined ramp and the output ramp;
• a pin extending from the input ramp to the combined ramp and coupled to the input shaft;
• and
• a brake adjacent to the output ramp;
• wherein the combined ramp, the output ramp, and the second plurality of balls therebetween are configured to operate as a torque limiter by causing the combined ramp and the output ramp to separate and the output ramp to engage the brake when the torque from the input shaft exceeds a torque threshold.