Lightweight polymers

  • 14-Feb-2013 01:42 EST
Powertrain Components.jpg

Lightweight Victrex PEEK polymers are suitable for replacing metals and other polymers in the most demanding conditions, claims the company. The increased demands of smaller, higher-power engines can also lead to greater levels of NVH. According to a case study performed by Metaldyne, replacing metal with VICTREX PEEK in a balance shaft module lowered NVH by 3 dB, which is equivalent to a 50% noise level reduction. Compared to metals, VICTREX PEEK polymers provide up to 80% in weight savings in powertrain components such as seal rings, thrust washers, bushings, bearings, shift fork wear pads, and gears. These weight savings, combined with a low coefficient of friction and low wear rate, can improve the overall efficiency of the transmission. The reduced stress on components and lower friction lead to greater fuel economy and lower maintenance costs, as well as increasing the lifetime of the powertrain. Victrex's latest development, VICTREX WG polymers, features minimal frictional losses and improved wear resistance in critical automotive components. These wear grades have a lower coefficient of friction and reduced wear rate compared to other polymers such as polyimide and polyamide-imide, leading to greater reliability and increased energy efficiency. VICTREX WG polymers can be processed on standard injection molding machines, reducing processing costs and part-to-part variability compared to other polymers.

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