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. Top mounts and spring seats also perform a damping function and are essential to vehicle stability and road holding, and their rubber compound and shape can be precisely modified to the required stiffness characteristics.

By providing a perfect fit to the chassis, the stamped steel housing with its formed fasteners is able to absorb high loads. Top mounts and spring seats are designed to ensure that passengers are protected from sudden shock inputs caused by driving over bumps, obstacles and potholes. They also help to isolate tire noise.

The cost-efficient and compact design provides packaging flexibility for manufacturers.

Vibracoustic’s portfolio of top mounts ranges from conventional rubber to polyurethane top mounts and top mounts with spring aids or jounce bumpers, and also includes single, double and triple path top mounts. We provide the design of the top mount, housing, spring seat, jounce bumper and dust boot from one source to ensure maximum performance and cost efficiency.

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.