Suspension Strut Bearing

High-quality components for the best driving characteristics

The suspension strut bearing is an integral part of the chassis in modern motor vehicles using MacPherson front axle strut-type suspension. The bearing decouples the spring from the vehicle body enabling the suspension strut to pivot when steering. As such the strut bearing plays a hugely significant role in the car handling characteristics. As a specialist, in plain and ball bearing technology, ROLLAX manufactures individual suspension strut bearings that satisfy the most exacting standards of quality, reliability and longevity.

The task of the suspension strut bearing

As the wheels of a motor vehicle turn when the steering angle is altered, it is necessary for the connection to the front axle to allow torsional movement. In the 80% market share that use MacPherson front axle systems, this is accomplished with the help of a top-mount and suspension strut bearing combination installed together.

The top-mount is usually a sturdy rubber-metal element below which the suspension strut is mounted. In modern motor vehicles usually an angular contact ball bearing. The malleability of the rubber in the top-mount enables small angular changes and also serves as a vibration absorber. The suspension strut bearing allows full torsional movement.

In spite of the inconspicuous nature of this component the choice of the most suitable bearing and the precise and accurate installation are extremely important to the faultless function of the suspension strut.

The more sophisticated and sport tuned motor vehicles increase the lateral forces on the suspension strut, which in turn convert to radial loads on the strut bearing. Although the axial burden, determined by the vehicle weight and the dynamic contact forces, remains the main burden, the radial load is gaining significantly in importance. Previously employed thrust bearings are being replaced by better suited angular ball bearings.

ROLLAX have always been pioneers. Not only were we the first manufacturer, worldwide, who integrated specialist plastics in the suspension strut, saving weight. We were also the first to introduce angular bearings into the suspension strut. In addition the permanent contact seal, enabling a lifetime operation of this important chassis component, was invented and patented by ROLLAX.

Suspension strut bearings enable low friction, precise torsional movement and guarantee smooth, precise steering and wheel reset.

Our suspension components are used by:

  • BMW
  • Fiat
  • Ford
  • Porsche
  • VW-Group

Strut Bearing

Strut Bearing

Strut Bearing

  • Suitable for transferring high axial and radial loads by means of integrated support ring
  • Inclined design to compensate for radial loads
  • Two-component inner and outer seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Very flat, lightweight design
  • Suitable for transferring axial and radial loads
  • Two-component inner and outer seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Suitable for transferring very high axial and radial loads by means of integrated support ring
  • Suitable for absorbing high axial loads of the jounce bumper by the stop plate
  • Two-component external seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Suitable for transferring high axial and radial loads by the means of integrated support ring
  • Two-component inner and outer seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Suitable for transferring high axial and radial loads by the means of integrated support ring
  • Two-component inner and outer seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Compact design
  • Suitable for high axial loads
  • Low breakaway torque
Strut Bearing

Strut Bearing

  • Suitable for transferring high axial and radial loads by means of support ring
  • Option to secure gaiter
  • Two-component inner and outer seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Suitable for transferring axial loads
  • Two-component inner and outer seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Compact design
  • Optimised spring seat position
  • Suitable for high axial loads
  • Low breakaway torque
Strut Bearing

Strut Bearing

  • Suitable for transferring very high axial and radial loads by means of integrated support ring
  • Two-component external seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Strut Bearing

Strut Bearing

  • Compact design
  • Optimised spring seat position
  • Suitable for high axial loads
  • Low breakaway torque
Strut Bearing

Strut Bearing

  • Suitable for transferring axial and radial loads
  • Option to secure gaiter and jounce bumper
  • Inclined spring seat compensates radial loads
  • Suitable for taking high axial loads by means of a stop plate
  • Two-component external seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque
Federbeinlager

Federbeinlager

  • Suitable for transferring high axial and radial loads by means of integrated support ring
  • Inclined design to compensate for radial loads
  • Two-component inner and outer seal
  • Minimal noise emission
  • Low breakaway torque
  • Low friction torque

ROLLAX – Design, testing and assembly from a single source

We manufacture suspension strut bearings and other vehicle chassis components for numerous renowned automotive manufacturers. These parts are known on the open market, in part, under the “RJS” brand name. In order to design and manufacture precisely tailored solutions we collaborate very closely with our customers from concept to finished product.

Our engineers use their comprehensive know-how and the technical capabilities of our company to implement customers’ requirements and wishes and provide ideal solutions. Our FEM analyses accelerate the development phase and help in avoiding time-consuming, expensive modification loops. They also form the foundation for material-saving, economical production of dome bearings and other components.

We would be delighted to design your suspension strut bearing. In the available space we will design the spring and body interface and devise the ideal bearing concept for your suspension strut. In this you will benefit from our patented 2-component seals, an early FEM concept analysis and a great many years of our engineers’ knowledge, know-how and experience.

In order to guarantee the maximum functionality of our suspension struts, we test them extensively in our in-house testing facility. A further reason to design and develop dome bearings and strut mounts  with us is our quality management system which guarantees the quality of all our products and processes. ROLLAX is certified under IATF (International Automotive Task Force) in all locations.

Profit from the flexibility, creativity, and the motivation of our specialists. They are completely committed to providing the most practicable solution regarding the chassis geometry and the right strut bearing for the available space. All that at the highest technical level. You can count on our innovativeness. 

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