Polyimide parts

  • 04-Sep-2009 02:21 EDT
Dupont SCP2515sealsHI.jpg

DuPont has expanded its Vespel line with SP-2515 polyimide parts, which can improve dimensional control and reduce component weight in fluid- and motion-control systems. Working to decrease oil consumption and greenhouse gas emissions, DuPont developed Vespel with high thermal conductivity to remove heat from critical bearing surfaces, leading to cooler running parts and higher pressure and velocity limits. The product is suitable for hot, dirty operating environments in the commercial vehicle industry where tight tolerances, durability, and improvements in energy efficiency are demanded such as seal rings, hydraulic spool valves, thrust washers, and bushings in powertrain applications. Parts made from SP-2515 demonstrate a low coefficient of friction and thermal expansion to match metal. Lightweight aluminum can be used as a mating surface for rotating or moving parts and can eliminate use of heavy steel inserts.

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