Global Precision Ball & Roller
178 Sunny Valley Road
New Milford, Connecticut 06776


 Aluminum Oxide Ceramic Balls

The Global Precision Ball & Roller team offers a variety of balls to handle applications in countless industries. The oil industry, cosmetics, energy, agriculture, automotive, and many more commonly use our balls. One of our go-to options is our Aluminum Oxide ceramic balls, which the energy, medical, electronics, and oil industry use. Whether you work in one of these industries or you require a ceramic ball that is hard, wear resistance, resistant to strong acids, and strong, alumina oxide ceramic may be the right option for your application.

Our team understands that selecting the right ball can be overwhelming. There is a vast selection of materials to choose from, which have all been designed to work in certain environments. If you have any questions if Aluminum Oxide ceramic balls are right for you, contact a member from the Global Precision team. We are always happy to point you in the right direction.


Aluminum oxide has a simple composition. The formula is AL203, which is 2 aluminum and 3 oxygen and is 99.0%-99.99% oxide.


Aluminum Oxide ceramic balls have the following properties:

  1. Density – 3.90
  2. Young’s Modulus – 365
  3. Friction Coefficient – 0.2
  4. Thermal Conductivity – 31.0
  5. Relative Magnetic Permeability - <1
  6. Coefficient of Linear Thermal Expansion – 7.8
  7. Specific Heat – 795
  8. Thermal Conductivity – 20-30 W/mK
  9. Hardness – 9 (on Mohs Scale)
  10. Mechanical Strength – 300 – 630 MPa
  11. Compressive Strength – 2,000 – 4,000MPa


Aluminum Oxide is an excellent electrical insulator, resistant to many chemicals and acids, is nearly frictionless, has high-temperature resistant (Up to 3180 ºF), spins faster than other materials, is non-porous, and abrasion-resistant. All these benefits make aluminum oxide a desirable material in various industries. These balls are commonly used in the medical, energy, oil, electronics, and other industries.

Our Standard

At Global Precision, we have very high standards when it comes to our excellent products. Each batch is thoroughly tested and examined to ensure that you will receive a high-quality product.

ISO 9001: 2015
ISO 14001: 2004
ISO TS 16949: 2009

178 Sunny Valley Road, New Milford, Connecticut 06776
Tel: 860-210-0808 | Fax: 860-210-0818 | Email:

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