EMD (Enhanced Materials Division)

Enhanced Materials Division (EMD)

Get in Touch

Contact Us

Go here to request a quote or for general questions (document requests, billing inquiries, etc.).
Reach Out

Ask the Expert

Have a material or application question for our engineering team? Go here.
Ask Away

Let's Go Paperless

In an effort to save time, paper and postage please sign up for our paperless invoicing and payments.
Sign Up
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

Q&A: Which material do you recommend for small construction equipment? Our cast nylon bearings are not lasting as long as we’d like.

By Dave Biering on April 3, 2012

This question was posed to us from a manufacturer of small excavators, the kind you often see in the consumer rental market.  Cast nylon is a good material for farming and construction, but with some drawbacks when it comes to moisture absorption and UV stability.  Depending on where you use them, nylon is good for cable sheaves, but for pivot points, we recommend these materials for top performance.

Topics: Construction Q&A CJ Bearings Ultracomp
1 min read

Plane bearings for a wet environment

By Dave Biering on September 22, 2010

Over the summer — at the height of boating season — I was asked how to choose the right bearing for use in a wet environment.  As a whole, plastics do not do well in wet applications; most traditional polymers tend to absorb moisture and saturation. Nylon materials, for instance, are susceptible to humidity and swelling issues.  Even those polymers that do well in water can usually withstand freshwater only, not saltwater. 

So what are your bearing choices for a wet environment application?  Polyesters and Acetron materials hold up well.  And our marine clients have done extremely well with Ultracomp for their rudder bearings, since they are durable and excel in linear, oscillating and rotary applications.  Our CJ product line is another good choice, since they remain dimensionally stable in liquid.  No matter what material you choose, we recommend that you avoid graphite, because it gives a cathodic charge in saltwater.

Very few PTFE-based materials excel in water, but we can help you find the right one for you freshwater, saltwater, DI, or chemical blend submerged applications.
Topics: Material Selection CJ Bearings Ultracomp Marine