ML 430 (163.172) V8-4.3L (113.942) (2000)
Clutch: Description and Operation
Models Without Touch Shift
Freewheel
Freewheel, Location/Task/Design/Function
Component Illustration
Location
Freewheels are installed in the front planetary gear set between the sun gear and the stator shaft, and in the rear planetary gear set between the sun gear
and the intermediate shaft.
Task
Optimizes individual gearshifts. Locks individual elements of a planetary gear set together or against the transmission housing in one direction of
rotation to allow the torque to be transmitted.
Design
The freewheel consists of an outer race (12), an inner race (13), a number of locking elements (14) and a cage (15) for these locking elements.
Function
If the inner race (13) of the freewheel is locked and the outer race (112) turns in direction "N" the locking elements (14) adopt a diagonal position on
account of their special contours, allowing the freewheel function. The outer race (12) slides over the locking elements (14) with negligible friction. If
the rotation of the outer race (12) changes to direction "B", the locking elements (14) stand up and lock the outer and inner races (12, 13) together.
Related Information
Multiple-Disc Brake
Location/Task/Design/Function