What are CBN Wheels?

CBN is a superabrasive material used for working with ferrous materials where diamond has failed. CBN or Cubic Boron Nitride is a man-made material that is composed of a crystal structure similar to that of diamond. Diamond has always been in the spotlight of the turning industry due to its ability for cool and clean cuts with an extremely high removal rate. However, in the past 10 years, CBN has quickly gained popularity in the industry. CBN wheels are great for high speed grinding due to their high thermal rate. High thermal rate is an important feature to have when grinding at high speeds.

CBN Wheels and Ferrous Materials

As mentioned above CBN is great for working with ferrous materials. If you have worked with diamond wheels in the past, you know that diamond wheels do not perform well against materials that are ferrous.  CBN is able to grind ferrous materials due to the swapping of carbon for boron atoms. In the diamond structure, carbon atoms are used for the bonds. In the CBN crystal structure, the element boron replaces carbon atoms.  It is important to note, when trying to grind ferrous materials, such as iron, Diamond is not a great abrasive to use.   When working with ferrous materials, the carbon atoms react, causing a rapid breakdown of their internal structure. CBN is able to grind ferrous materials due to the boron atoms not reacting with the elements in ferrous materials.

What size do CBN Wheels come in?

We can manufacture our CBN Wheels as thin as 0.2mm and up to a maximum diameter of 750mm(29-½”) any anything in between. Our chemists and engineers have developed an advanced bond system and exclusive formulations to ensure the integrity of the wheels’ bond. We also have the ability to produce wheels on more than six different core materials. Our CBN Wheels will increase your productivity and save you money. If you would like to read about how our wheels can save you money and increase your productivity, please read this article.


Bond Structures in CBN Wheels

CBN Wheels are such a superior product that they typically do not breakdown due to use. Instead, CBN wheels begin to lose productivity when the bonds begin to lose their strength. Our CBN Wheels are considered the best on the market due to their bonds. Our in-house chemists and engineers have developed a bonding technique that out-performs competitors. Another way that CBN Wheels typically lose productivity is through the way they are dressed. We could do a whole write-up.  Instead, we have made a video to show dressing a superabrasive wheel! Check out the video below!

Dressing and Truing Diamond or CBN Wheel

Trust the experts

When you’re ready to try the best, trust the experts at Eagle Superabrasives Inc. Our staff is ready to answer any questions that you may have when it comes to choosing a grinding wheel and understanding what wheel will meet your needs the best. Contact us today to speak about aggressive CBN wheels!