Light Vehicle Products | Chassis Mounts

Lightweight Front Axle Plastic Top Mounts

Top mounts connect wheel suspensions with the chassis and, together with coil or air springs, minimize a large part of road surface excitation so that unwanted chassis vibrations do not reach the passengers. The plastic top mounts offer significant weight reduction compared to conventional top mounts without compromising performance and additionally providing high frequency isolation.

Front axle top mounts also perform a damping function and are responsible for direct and precise handling and steering feel which are essential for the vehicle stability. The structural strength and robustness are also critical factors for the top mount as the part can experience peak loads of a couple of tons, for example, by driving through a pothole. The design of the part and its materials assure its robustness and stiffness and optimizes the load transfers between the suspension and the car body.

The plastic components offer an improved high frequency isolation performance which is also a relevant factor for electric vehicles. The weight reduction contributes to the reduction of the overall vehicle weight and helps reduce CO2 emissions or increase range in electric vehicles, whereas the compact design offers more flexibility and design space.

About Chassis Mounts

Dozens of chassis mounts control vibrations transmitted from the road surface into the chassis of the vehicle. Chassis mounts are small but important components that improve handling and safety, and reduce unwanted vibrations.


All bushings are designed to absorb loads, caused by road surface excitations, from multiple directions. The correct stiffness and damping of the bushings are essential to maximize vehicle road holding, ride and handling. Bushings must therefore be precisely tuned in line with the whole suspension system.

Minor vibrations create an unpleasant driving experience – severe ones can result in steering disturbances and body vibrations that pose serious safety risks. To reduce vibrations, vehicles have a number of chassis mounts fitted, e.g. for the transverse control arms, subframes, suspension struts and stabilizers.

The product portfolio ranges from conventional, hydro, DualRubber chassis bushings through steering column bushings, and subframe mounts to conventional and lightweight top mounts.