Abstract: A speed sensing adapter plate is provided and includes an adapter housing having a perimeter and a central portion and including a body having first and second opposite sides, mounting features disposed in the perimeter to extend from the first side to the second side, a shaft, bearings and a speed sensor. The shaft is disposed in the central portion and includes first and second splines at the first and second sides, respectively, and a flange. The flange is axially interposed between the first and second splines such that input rotational energy is transmittable from the first spline to the second spline via the flange. The bearings are disposed to rotatably support the shaft within the adapter housing. The speed sensor is coupled to the perimeter of the adapter housing and is configured to measure a rotational speed of the shaft from rotational energy driven rotations of the flange.

Abstract: A ram air turbine movable between a stowed position and a deployed position is provided including a rotatable hub assembly. A hub face is arranged at a first end of the rotatable hub assembly. The hub face has a non-planar configuration such that a limited portion of a surface area of the hub face is arranged within a plane oriented perpendicular to a direction of travel of an airflow upstream from the hub face when the ram air turbine is in a deployed position.

Abstract: An end fitting for a drive shaft includes a shaft weld side having a face configured for fluid communication with an interior of a shaft with the shaft weld side welded to a shaft. The end fitting also includes a coupling side shaped to be operatively connected to a component for transferring rotational motion from the end fitting to the component. The end fitting further includes a pressure relief bore defined in the end fitting between the face of the shaft weld side and the coupling side such that fluid can flow between the shaft weld side and the coupling side through the pressure relief bore.

Abstract: An end fitting for a drive shaft includes a shaft weld side having a face configured for fluid communication with an interior of a shaft with the shaft weld side welded to a shaft. The end fitting also includes a coupling side shaped to be operatively connected to a component for transferring rotational motion from the end fitting to the component. The end fitting further includes a pressure relief bore defined in the end fitting between the face of the shaft weld side and the coupling side such that fluid can flow between the shaft weld side and the coupling side through the pressure relief bore.

Abstract: A ram air turbine movable between a stowed position and a deployed position is provided including a rotatable hub assembly. A hub face is arranged at a first end of the rotatable hub assembly. The hub face has a non-planar configuration such that a limited portion of a surface area of the hub face is arranged within a plane oriented perpendicular to a direction of travel of an airflow upstream from the hub face when the ram air turbine is in a deployed position.

Abstract: A ram air turbine assembly includes a spacer that controls axial movement of a bearing assembly supporting rotation of a driven shaft to limit compression of a bearing biasing member. A gearbox includes mating gears that transfer power through a strut to a generator. Bearings support rotation of the driven shaft and the biasing member generates a biasing load to maintain desired alignment between the mating gears. Axial thrust reversals generated during operation are prevented from fully compressing the biasing member by a spacer that defines a minimum compressed height and that further limits axial movement of the bearing assembly responsive to the thrust reversals of the driven shaft.

Abstract: A ram air turbine assembly includes a spacer that controls axial movement of a bearing assembly supporting rotation of a driven shaft to limit compression of a bearing biasing member. A gearbox includes mating gears that transfer power through a strut to a generator. Bearings support rotation of the driven shaft and the biasing member generates a biasing load to maintain desired alignment between the mating gears. Axial thrust reversals generated during operation are prevented from fully compressing the biasing member by a spacer that defines a minimum compressed height and that further limits axial movement of the bearing assembly responsive to the thrust reversals of the driven shaft.

Abstract: A radial torque limiter, for example, for a geared rotary actuator (1, 1') including input member (S, 8) coupled to an output member (3 or 3') driving a sun gear (4) and planet gears (5) through axially projecting tabs (3g). Roller elements (2) are arranged at ramp sections (3a, 3b, 3c, 3d, 8a, 8b, 8c, 8d) formed at the input member (S, 8) and output member (3 or 3') for radially outwardly displacing the beam spring portions of the output member (3 or 3') to radially apply braking force between an external surface (14) of the beam springs and an internal surface (13) of a grounded reaction member (12) so as to brake the input member (S, 8) and output member (3 or 3') upon an occurrence of an excess transmitted torque.