Benefits of Rubber Engine Mounts
Oct 25,2023

Rubber engine mounts are imperative to the function of a vehicle. Without them, all the disturbing frequencies an engine produces will be transferred to the frame and make it prone to increased wear and damage. Engine mounts are designed to absorb the disturbing frequencies that the engine produces from transferring to the chassis or frame. The result is keeping all connected components and sensors free from excessive vibration and damage.
While engine mounts can be made in a variety of materials, rubber is the best option, but understanding the correct rubber to use and when is key. Whether you are purchasing standard mounts or you are getting custom rubber engine mounts created, continue reading for five benefits of using rubber engine mounts.
Noise and Vibration Dampening
It is no surprise that engines are loud and cause some pretty heavy vibrations, there are quite a few pistons and inertial imbalances being created. This is one of the reasons why using a good quality engine mount is so important. If you pick the wrong engine mount you could end up with a noisy and shuddering vehicle. Pick the wrong stiffness or spring rate and you actually could be amplifying the input. Beyond being unpleasant, vibration quickly becomes a safety issue and can damage the engine.
Natural Rubber is the best material for noise and vibration control due to its excellent resilience. If the mount will be in constant contact with oils and fuels, go with neoprene. It has excellent vibration dampening properties and is perfect for auto applications.
Balancing Energy Absorption and Motion
It’s important that an engine mount strikes a balance between energy absorption and allowing motion. This balance contributes to how much an engine vibrates. For example, if the engine mount does not allow energy to transfer then the engine will bounce and vibrate more. On the other hand, too much allowance and the engine may become more prone to damage from excessive movement. This is why it is important to find a material that provides both stability and cushioning.
There are many different rubber options to choose from when it comes to providing the best balance. Natural rubber and neoprene both offer a great combination of both firmness and support. Even then, most rubber materials offer just the right amount of stability that you are looking for in an engine mount.
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