Housing Freewheels FH for stationary arrangement in multimotor drives with hydrodynamic roller lift-off for extended service life Application as ➧ Overrunning Clutch at high speeds, which are the same or similiar in freewheeling operation and in driving operation. Features Housing Freewheels FH with hydrodynamic roller lift-off are typically used in cases where an assembly can be driven from two or more motors or turbines at the same or similar high speed. They allow a continuous plant operation in the event that one of the energy sources or a drive line fails as well as energy saving in the case of partial load operation. The Housing Freewheels FH are completely enclosed freewheels for stationary arrangement with input and output shaft. Nominal torques up to 40 675 Nm Shaft diameter up to 129 mm Wear-free operation Low noise Low power dissipation Integrated oil filtration system Integrated locking brake Oil change without down time Hydrodynamic roller lift-off Housing Freewheels FH are equipped with hydrodynamic roller lift-off. The hydrodynamic roller lift-off is the ideal solution for overrunning clutches at high speeds, not only in freewheeling operation, but also in the driving operation, as can occur, for example, in multimotor drives. Input shaft Inner ring Cage Spring system Spring system Centrifugal force In the case of hydrodynamic roller lift-off, the lifting force is generated by an oil film applied during freewheeling operation by centrifugal force exerted on the outer ring race. This provides for practically wear-free freewheeling operation. The speed differential between the inner and outer rings is the decisive factor affecting the lift-off function. If the speed differential decreases, the lift-off force also decreases. Before achieving synchronous running, the clamping rollers guided in a cage are positioned with the aid of the central spring system against the outer ring race and are then ready to lock. This guarantees immediate torque transfer once the synchronous speed has been reached. The hydrodynamic roller lift-off enables a virtually wear-free freewhee

Housing Freewheels FH for stationary arrangement in multimotor drives with hydrodynamic roller lift-off for extended service life driving operation freewheeling operation freewheeling operation Housing Freewheels as automatic clutches in multimotor drives fulfil here an important function. They disengage a drive automatically as soon as it no longer provides power to the working machine. The Housing Freewheels do not require any external operating equipment. Typical applications for multimotor drives are: • Generators • Pumps • Ventilators • Fans • Uninterrupted power supply Application example...

Housing Freewheels FH for stationary arrangement in multimotor drives with hydrodynamic roller lift-off for extended service life Rollers Activation of locking brake Locking brake Spring system Input shaft Output shaft Radial seal Radial seal Output shaft bearing Input shaft bearing

Housing Freewheels The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque. Keyway according to USAS B17.1-1967 Locking brake During freewheeling operation, the stationary input shaft of the Housing Freewheel is effected by a drag torque from the freewheeling output shaft. By manually activation of the in the housing freewheel integrated locking brake the driving parts are prevented from being carried along. Mounting The Housing Freewheel must be mounted in such a way that shaft dl is the input shaft and shaft d2 the ouput shaft....