Power Drive Units

A Power Drive Unit is used to convert electrical or hydraulic power into mechanical motion (often rotary) and drive a mechanical actuation system.

Power Drive Unit Diagram

Moog’s heritage in power drive units covers electrical and hydraulic inputs provided in torque and speed summed configurations.  Hybrid hydraulic/electric powered drives have been used in some applications.  Power drive hardware includes the hydraulic motors and control modules, electric motors, reduction gearing, stop modules, torque limiters and braking mechanisms.

Hydraulic Power Drive Unit

Representative hydraulic power drive unit for business jet flap drive system.

Electrical Power Drive Unit

Dual-redundant electric power drive unit for leading edge flap actuation system on military fighter.