Suspension Strut Bearing for trucks

Shock strut bushes for trucks are rubber components that dampen vibrations between elements of the suspension. The components are located in the bottom part of the shock struts, at the point of their attachment to the wishbone. They consist of one or two metal sleeves with an elastic insert between them.

Types

The manufacturers’ catalogues include the components that differ by the axle of installation:

• front;
• rear.

You can order online components made of different materials:

• Rubber. These are soft parts that are inexpensive but have short service life.
• Polyurethane. These elements are durable due to their high resistance to chemicals and temperature changes. Their disadvantages are high cost and excessive rigidity.

Like shock strut bushes for passenger cars, components for trucks may have different design:

• With both inner and outer sleeves.
• With the inner sleeve only. When the part is mounted to the suspension, the mounting seat acts as the outer sleeve.

Malfunctions and reasons thereof

Manufacturers do not specify a certain service life of these components. The part is to be replaced if its rubber insert has lost elasticity, cracked, peeled, or detached from the metal element.

Service life of front and rear shock strut bushes depends on the quality of the road surface. Prolonged operation of trucks on dirt and gravel roads reduces service life of the components. Besides, rubber inserts are affected by oil-containing liquids and chemicals. The material is also destroyed due to exposure to high and low temperatures.

How to detect faults

If a knocking sound is heard from the suspension when the truck is moving on a rough road, the components need diagnostics. The degree of their wear can be assessed by inspecting the truck from the underneath. Cracks on the elastic components indicate the need for replacement. You will need a special puller, since the components are press-fitted, and their dismantling requests applying considerable force.

AUTODOC: convenient shopping online

Looking where to buy shock strut bushes and other components for your truck? Have a look at the AUTODOC online store. Our price policy makes components affordable, and regular promotions allow buying more products for the same price. Place your order and see for yourself that repairing and servicing your truck may be affordable!