Hendrickson Truck Commercial Vehicle Systems has introduced the Progressive Load Spring (PLS) for its HaulMaax vocational rear suspension system. It’s an elastomeric spring which works in concert with the bolster springs in Hendrickson’s patented Vari-Rate spring system.
The new PLS will improve the suspension system by providing key advancements in ride quality and stability, the company says. It’s continuously engaged, thus providing “excellent” unloaded ride performance. As payload increases, the spring further engages and functions together with the rubber bolster springs to provide additional stability. The constant engagement also eliminates the need for shim adjustments for most applications, said to result in reduced maintenance and lowered cost.
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