Fail safe redundant drive shaft apparatus including electrically
Flexible coupling
Flexible drive for rotating a fan
Free-wheeling overload coupling
Freewheel coupling
Friction clutch for power driven element such as a rotary blade
Friction clutch with adjusting device
Friction clutch with integral adjuster
Friction clutch with spring compensating the change in pressure
Friction clutch with wear compensation
Friction clutches
Friction overload coupling