Innovative Lightweight Leaf Springs Boost Fuel Efficiency in Trucks

June 10, 2024

The automotive industry is witnessing a shift toward lightweight leaf spring designs, with manufacturers like Dana Incorporated and Hendrickson leading the charge. Traditional steel leaf springs are being replaced by composite materials (e.g., fiberglass-reinforced polymers), reducing weight by up to 30% while maintaining durability.

A recent study by the SAE International found that trucks equipped with composite leaf springs saw a 3-5% improvement in fuel economy, critical for fleet operators facing rising fuel costs. Companies like Volvo Trucks have already adopted these springs in their latest models, citing reduced wear on suspension components and lower CO₂ emissions.

Critics argue that composite springs have higher upfront costs, but proponents highlight their longer lifespan and corrosion resistance. As emission regulations tighten, lightweight suspensions may become standard in commercial vehicles.