MCU Components | Light Vehicle Products

MCU Spring Isolators

Support vehicle weight, isolate rolling noise, and provide even loading of the spring

Multiple MCU material options and rubber available

Can be supplied assembled to the top mount or jounce bumper

Spring isolators help the coil spring to support the weight of the vehicle, isolate rolling noise, and provide even loading of the spring. They are mostly found on front-wheel-drive vehicles with a MacPherson strut suspension system.

In every strut suspension, two coil spring isolators are typically used. The so-called lower isolator is positioned between the coil spring and the spring seat on the strut, while the other is located between the coil spring and the top mount. They are used to provide rolling noise isolation and prevent metal-to-metal contact between the spring and the strut or top mount.

Spring isolators can be supplied assembled to complete components like top mounts, jounce bumpers, or air springs, as well as being equipped with dust covers, bumpers or saturation cups.

Vibracoustic offers multiple Micro Cellular Polyurethane (MCU), thermoplastic rubber, and thermoset rubber material options that have excellent noise isolation and durability characteristics depending on the application.

Other benefits of using Micro Cellular Polyurethane (MCU) are that it can be easily tuned and optimized by changing the material’s density and it easily conforms to the spring geometry to prevent dirt and grit from becoming trapped in contact with the spring.

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