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1 min read

Bearing Materials and Tribology Testing

By Dave Biering on November 4, 2014

Blog_20141104I had an interesting conversation with a manufacturer this week regarding bearing materials and tribology testing. With so many counterfeit bearing materials on the market, it is more important than ever to ensure that you are using genuine materials before you begin manufacturing to avoid application problems down the line.

In our call we spoke of the number of processors claiming to sell quality, original materials, yet in many cases, the materials are actually a blend of poor-quality resins. To complicate the situation even further, the counterfeits often look and feel just like the real deal. How can you avoid falling victim to these lesser materials? Consider the advantages of tribology testing to guarantee true authenticity.

Tribology characterizes the friction, lubrication and wear properties of polymers to predict how they will perform. Tribology also helps you comply with important industry standards such as EN, ASTM, CPSC and others. The testing is particularly critical in the medical, pharma and food processing industries where authenticity and sanitation must be guaranteed.

Look to Tribology testing to help you:

  • Guarantee that the material you purchase is authentic
  • Identify any material defects before production begins
  • Protect the end user of your product from underperforming bearings
  • Eliminate shipping defective products
  • Avoid costly product recalls

Want to explore the 7 key tribology tests that are required for polymer characterization? Download your free copy of our white paper, Rulon Bearings: How to Recognize Genuine and Avoid Counterfeit.

Tribology is just one of many analytical services that we offer. We can help you identify and validate any plastic material, and predict how it will operate in real-world conditions. Just Ask the Experts for a quote!

Topics: Composite Bearings Bearing Failure
1 min read

Waterproof Bearings: CJ resists corrosion and moisture

By Dave Biering on July 22, 2014

Composite CJ bearings resists corrosion and moistureIs corrosion a problem in your marine bearing application?

Are excessive loads or speeds a challenge?

Need a material to resist sea spray, barnacle growth and other water hazards?

We have the answer to these marine bearing challenges.

The CJ bearing system might be the right fit ― it has even performed on elite America’s Cup vessels.  Designed as a replacement for bronze, steel, rolling element bearings and even other polymers, CJ is a simple, self-lubricating bearing solution for marine, construction, railroad and other heavy-duty applications.  Consider CJ bearings when loads are above 15,000 PSI and speeds are between 0-400 feet per minute.

CJ bearings NEVER absorb water, and excel in these marine environments:

Naval submarines

  • Fairwater plane pivot bearings

Self-unloading barges

  • Loading/unloading boom pivot bearings

Off-shore oil rigs

  • Spherical bearings on pipe handling devices
  • Door pivots on water bomber loading doors

Inboard/outboard motor

  • Stern drive pivot points – variable pitch prop pivots

Sail boats

  • Rudder bearings

Water attractions

  • Underwater animatronics and other entertainment applications

Explore the benefits of CJ bearings in our new video (below), or sail on over to the Materials Database for additional tech specs!

Topics: CJ Bearings Composite Bearings Marine Bearings
1 min read

Rulon Plane Bearings and Coefficient of Friction

By Dave Biering on April 16, 2013

Q: We are designing plane bearings made of Rulon®, what are some key considerations in terms of coefficient of friction?
A:   This is a question that we hear often regarding Rulon, Ultraflon and other PTFE-filled materials.   The short answer is that these design materials are exceptions to the general rules of friction.  With most materials, you can presume that higher loads and higher speeds would mean higher friction.  But with PTFE-filled materials, the opposite is true; the higher the load and speed, the lower the friction. This is important to keep in mind when designing, since surface contact area can be reduced dramatically to optimize friction properties.  
We’ve prepared a Coefficient of Friction video that covers this topic in much greater detail, but also invite you to reach out to Our Experts to review your application needs.

Topics: Rulon Materials Composite Bearings