Parker O-Rings For Automotive & Transportation Applications

O-Rings Withstand Demands Of Automotive & Transportation Applications

In the automotive and transportation industry, O-rings take a beating. Often used in airbrake systems, engines, transmissions, and other parts of the vehicle, O-rings are exposed to grease, oil, brake fluid, refrigerants, and a variety of other chemical-based fluids. They must also withstand harsh conditions imposed by temperature, speed, and usage. Both the materials used in the design must be just right to withstand deterioration and wear.

O-ring Applications For Automotive And Transportation

The transportation industry uses O-rings in many specific parts of the vehicle including:

  • Brakes/ABS
  • Cooling/air conditioning
  • Fuel and diesel injection, spark plugs
  • Quick connects, couplings, gear units
  • Shock absorbers
  • Steering systems
  • Transmissions and radiators

Challenging Conditions Demand The Right O-Rings

Every vehicle system poses its challenge for O-rings.

Braking systems are crucial to the safety and operation of any vehicle. Within the breaking circuit, a glycol base synthetic oil provides constant performance within temperatures that can range between -40 degrees C and 150 degrees C. O-rings using the circumstances must retain their shape and stability even as pressure varies. The most common elastomer used for O-rings in Braking Systems is a PDM Perox base, which works well with glycol based oils.

Within engines and transmissions, the oils are mineral based and often contain additives such as anti-forming antioxidant agents. The temperature varies greatly depending on exactly where the oil passes in the system. This demanding usage puts extreme pressure on O-rings, which makes elastomer compounds such as ACM, FPM, and NB the best ones to withstand the conditions.

Every system that utilizes O-rings has its own performance requirements for them, which makes choosing the right elastomer crucial for proper operation.

Finding The Proper Material

Performance Seals offers the finest Parker O-rings in materials to suit the needs of the transportation industry. Popular elastomers for this use include:

  • Acrylonitrile-Butadiene (NBR)
  • Butyl (IIR)
  • Chloroprene (CR)
  • Ethylene Acrylic (AEM)
  • Ethylene Propylene (EPDM)
  • Fluorocarbon (FKM)
  • Fluorosilicone (FVMQ)
  • Hydrogenated Nitrile (HNBR)
  • Perfluoroelastomer (FFKM)
  • Polyacrylate (ACM)
  • Polytetrafluoroethylene (PTFE)

In selecting the proper elastomer for O-rings, you can determine the material based on the specific chemicals that will be compatible with it. Whether you need a stock or custom product, there is a Parker O-ring that will work with your application to provide long-lasting service that will also meet appropriate industry standards, such as:

  • NSF
  • Underwriters Laboratories (UL)
  • Military (MIL-SPEC)
  • Aerospace (AMS)
  • NASA
  • FDA
  • USDA
  • USP
  • Customer-specific requirements

Design Tools For O-Rings

As you determine the proper material for your O-rings, you can even have a hand in designing them with Parker Total InPHorm software. With a simple interface that will guide you through the design process for O-rings, as well as for hydraulic and pneumatic, static face and standard composite seal, or EMI shielding and thermal management products, you can spec your needs against the Parker database of part numbers, standards, and reference materials to verify that what you choose will meet your requirements. You may find that the Parker O-rings handbook will help you make your decision.

For O-rings equipped to meet the demands of the transportation industry, Performance Seals offers O-rings that are right for your needs. Click here for a catalog or contact us via our website.

Leave your comments

terms and conditions.