High strength epoxy adhesives are used in fabrication of carbon fiber composite drive shafts for cars.
Higher loaded actuators can contain metallic gears inside plastic composite housing for reduction of cost and corrosion resistance.
By NASA report, Sikorsky applied composite material for CH-53E helicopter gear housing, load truss, and main rotor quill shaft.
The ACA transmission design of Sikorsky Aircraft is particularly amenable to incorporation of composites because of geometric simplicity of the housing.
It is estimated that application of lightweight composites to the gear transmission results in 700 to 800 lb weight reduction compare to baseline materials."
Sikorsky aircraft has widely advertised its progress on developing of composite gear housing for aerospace application.
During the AIAA/SEA/ASME/ASEE conference in Nashville, TN, 6–8 July 1992, NASA published a picture describing one of proposed design embodiment of composite gear housing for an aircraft.
[9] In its permanent effort to promote use of lightweight composite materials on aircraft NASA has solicited a contract for development of 21st century rotorcraft gear drive system commonly known as RDS-21 (Rotorcraft Drive System 21) The program is directed by the U.S. Army Applied Aviation Technology Directorate (AATD) Boeing was awarded to participate in this program.