Is Switching to Polyurethane Bushings Right for You?
Polyurethane bushings are one alternative to automotive bushings made from synthetic or natural rubber. Polyurethane is usually harder than rubber, and offers different features and benefits than natural rubbers. If you are considering switching the bushing material in your automotive production, consider the potential benefits that polyurethane bushings can bring:
Reduced temperature shrinkage: Rubber bushings can shrink in cold weather, completely transforming the size and shape of the bushing. This can be a problem where consistent shock absorbency in a vehicle is necessary to maintain the high performance level of the vehicle.
Increased shock absorption: Polyurethane is better at absorbing shock than traditional rubbers. Rubber tends to reflect the shock back toward the source of the impact, while urethane can truly absorb the shock. This leads to improved shock resistance and performance in the vehicle.
Long-lasting life: Rubber will break down over time due to temperature changes, weather, sun exposure, and everyday usage. Polyurethane is more durable and is resistant to these factors more than rubber. Polyurethane tends to have a longer life than most rubbers.
Precision designs: Because of the unique properties of urethane, bushings made with polyurethane can have precise designs specifically formulated for different makes and models of vehicles. This is highly useful for a manufacturer of high-performance and high-end vehicles where the ultimate customization is a must.
Increased temperature resistance: Polyurethane is also resistant to changes in temperature. Rubber can shrink in the cold and expand in heat, or even melt under extreme temperatures. Polyurethane will not change size or shape under any differing weather conditions.
Cost: Some urethane bushings can cost much less than rubber bushings, simply because polyurethane is an inexpensive material. However, depending on the exact manufacturing process, some specialized bushings made from polyurethane may not provide any cost savings to the manufacturer.