Rear wheel drives with hinges of equal angular velocities with joints on a car with all-wheel drive are used to transfer torque from the main gear of the rear gearbox to the rear wheels

The drives of the right and left rear wheels are interchangeable.

Rear wheel drive design Renault Duster

The wheel drive consists of internal and external hinges of equal angular velocities connected by a shaft.

The drive shaft is made of forged steel rod. Slots are made at the ends of the shaft, on which the joints are installed.

The external and internal hinges of the drives have different designs.

Rear wheel drive design Renault Duster

The outer hinge of the drive provides the possibility of angular movements of the suspension.

It consists of a housing, a separator, a cage and six balls, which are placed in the profiled grooves of the housing and the cage.

The separator constantly holds the balls in the bisector plane between the housing and the hinge cage and ensures uniform transmission of rotation from the cage to the housing.

The hinge clip is mounted on the shaft slots and is fixed from longitudinal movement by a locking ring.

The spline shank of the outer hinge housing, at the end of which the thread is cut, is inserted into the hub of the rear wheel and fastened with a nut.

The outer hinges of the right and left rear wheel drives are interchangeable, and the inner hinges are also interchangeable.

Rear wheel drive design Renault Duster

The internal hinge of the drive provides the possibility of angular movements of the suspension and compensates for the movement of the suspension relative to the body by changing the length of the drive shaft.

At the spline end of the drive shaft from the inner hinge side there is a hub with three spikes - a three-stud, on each of the spikes (trunnion) of which there is a roller with an outer spherical surface rotating on a needle bearing.

Rear wheel drive design Renault Duster

The three-stud is fixed on the drive shaft by a locking ring.

The spring installed inside the inner hinge housing ensures constant pressure of the hinge housing to the semi-axial gear of the differential.

The locking ring in the connection of the slotted shank of the inner hinge housing with the semi-axial gear of the differential is not installed.

The movements of the rear suspension relative to the body are compensated by the movement of the three-stud rollers in the longitudinal grooves of the inner hinge housing.

The tightness of the hinges is an indispensable condition for their reliable operation.

The tightness of the external and internal hinges is ensured by plastic dirt-proof covers fixed to the shaft and housing with disposable metal clamps. The worn-out hinge is replaced in the assembly.

Before assembly, a special lubricant is placed in the outer and inner ball for the wheel drive joints with molybdenum disulfide (domestic analogue - SHRUS-4).

Replenishment or replacement of the lubricant, as well as any other maintenance of the wheel drives during the operation of the car is not required

The car owner only needs to monitor the condition of the protective covers of the hinges and the fastening of their clamps.

The drive joints are very durable, their estimated resource is almost equal to the resource of the car.

However, in operation, the drive hinges are often changed or repaired.

Such work is quite expensive and time-consuming.

In order to seriously save money, regularly check the condition of the protective covers of the hinges and immediately replace them with the slightest damage.