GF27.51-P-5106ACM Freewheel, Component Description

GF27.51-P-5106ACM Freewheel, component description
- TRANSMISSION 722.643/649
- refinement package
- as of model year 09

Component Identification:

Location
In the front planetary gear set the free wheel is installed F1 between the front sun gear and the stator shaft and in the rear planetary gear set the free wheel F2 is installed between the rear sun gear and the intermediate shaft

Task
The individual gearshifts are optimized using free wheels. They support individual elements of a planetary gear set in a particular direction of rotation relative to one another or against the transmission housing and thus enable torque transmission.

Component Identification:

The freewheels consist of an outer race, an inner race, several sprags and a sprag cage.

Function
If the inner race of the freewheel is fixed and the outer race moves in the direction of rotation "A", then the sprags assume an inclined position due to their special contour and enable a freewheel function.

The outer race slides over the sprags.

If the direction of the outer race changes in the direction of rotation "B", then the sprags move up and connect the outer race and inner race with each other in a locking function.