Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

In order that at the movement of the car and management you did not feel by it any influences of change of the mode of the movement on management, hinges of power shafts have to transfer the moment absolutely evenly in all provisions of shock-absorbers and a steering column.

It is a problem of the hinges located on the ends of power shafts. In a series of the Audi 80 models we deal with two various types of hinges:

• From a wheel and a transmission there are so-called gomokinetichesky hinges (hinges of equal angular speeds – CV JOINTS). Their action is based on six spheres which when bending the hinge move in specially ground swing paths. Thus, absolutely uniform transfer of the moment is provided at any, admissible in the car, an angle of rotation of a power shaft. Hinges of equal angular speeds stand on all cars with a mechanical transmission with 4-and 5-cylinder engines, and also on all all-wheel drive models (ahead and behind). With AKP and models with the 6-cylinder engine they stand on models as external hinges.
• From a transmission – that is as internal hinges – on cars with AKP and cars with the 6-cylinder engine (front-wheel) so-called hinges of equal angular speeds "Tripod" are installed. Instead of six spheres this hinge is supplied with three rollers on needle bearings. Advantage of this design: insignificant transfer of fluctuations from the drive to a body.