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Automotive engineers face tough challenges today when attempting to comply with global emissions regulations and enabling CO2 reduction through more efficient engine and drivetrain technologies. One solution has been the introduction of highly downsized turbocharged engines, which have higher ambient and operating temperatures.

Spire® Ultra-Polymers offers automotive engineers an unprecedented selection of strong, lightweight alternatives to metal and traditional plastics, like PPS, that meet next-generation thermal, friction and wear requirements.

Contact your Automotive representative for assistance.

Benefits of Metal Replacements

  • Corrosion free
  • Improved fuel efficiency
  • Parts consolidation to lower costs
  • Noise and vibration dampening
  • Excellent resistance to automotive fluids
  • Molded net shapes eliminate secondary operations
  • Abrasion and corrosion resistance
  • High-temperature wear resistance

Torlon® PAI, KetaSpire® PEEK and AvaSpire® PAEK give engineers more options for finding the best material for job. This makes it easy to find the right combination of mechanical, thermal and tribological properties, along with excellent chemical resistance to automotive fluids.

Drivetrain Applications

  • Thrust washers
  • Thrust Bearings
  • Needle bearing replacement rings
  • Check balls
  • Seal rings

Compatible Transmission Designs

  • Dual clutch (DCT)
  • Automated manual (AMT)
  • Continuously variable (CVT)
  • Automatic
  • Front wheel drive
  • Rear wheel drive
  • All wheel drive
  • Light Duty
  • High torque

Torsional DMA of wear-resistant Spire® Ultra Polymers


Mechanical & Structural Applications

  • Suspension
  • Hydraulics
  • Brake components
  • Dynamic systems

Properties Comparison

 KetaSpire® PEEKAvaSpire® PAEKTorlon® PAI
High TemperatureHigher than PPSHigher than PPSBest
Wear ResistanceBetter than PPSIn testingBest
Low FrictionBetter than PPSIn testingBest
Chemical ResistanceBestVery goodVery good
System Cost ReductionExcellentExcellentExcellent
Fatigue ResistanceBestVery goodVery good
Stiffness/Strength BalanceBestIn testingVery good
Toughness/Strength BalanceVery goodVery goodBest