SuspensionsIn Heavy Vehicle

SuspensionsIn Heavy Vehicle

-1 To ensure and maintain the largest possible support surface on the ground (contact point of wheels on ground): energy transmission.

-2 To attenuate, for the chassis-cab unit, brutal variations in the position of the mechanical components due to driving on the road: comfort.

-3 To avoid that the wheels lose contact with the ground, to preserve permanent adherence: road grip.

The roles of the suspension system

Technology

Semi-elliptic suspension systemSemi-elliptic suspension system

Suspension with semi-elliptic springs

Rear tandem suspension

Parabolic suspension systemParabolic suspension system

Traditional spring leaves are gradually replaced with parabolic spring leaves.

Suspension with parabolic springs

Advantages : Excellent load stability Excellent freight protection conditions Comfort for the driver High resistance to flexion due to braking and starting Significant decrease in dry friction between the leaves Weight is significantly reduced Suspension much less noisy

Suspension with parabolic springs

Suspension systems on Dump TruckSeveral combinations depending on use. Front: 3-leaf parabolic; 8-leaf semi-elliptic Rear :-cross-bar suspension ; -3-leaf parabolic - 7 to 11-leaf semi- elliptic; 2-spring air on 4 x 2 tractors

Front suspension systems

Reinforced with :

4 leaves parabolic spring

2 pcs rubber stoper

Spring bracket

Reinforced inside parts

On Kerax :

Parabolic systems

3 / 4 leaves

7.5 / 8 T

Semi-elliptic systems

8 leaves

8 T

Front suspension systems

Rear tandem suspension systems

ParabolicParabolic

Semi-ellipticSemi-elliptic