Ruby balls are widely recognized for their exceptional hardness, their remarkable endurance against corrosion and high temperatures. They also have superior wear resistance and reliable dimensional consistency. Designed from a monocrystalline aluminium oxide, these balls have their distinct red shade due to some residual impurities in the material. But it is not only their physical characteristics that make them popular.
This puts Ruby balls very high on the scale of durability and reliability, two essential criteria for a wide range of industries.
The wide range of distinctive properties of ruby logs makes them ideal allies in various industrial applications. They are used in a plethora of products and equipment, such as:
| Material | Rubs |
|---|---|
| Colour | Red |
| Chemical formula | AL2O3/CrO3 |
| Purity | 99% AL2O3 1% CrO3 |
| Density (g/cm3) | 3.98 |
| Hardness (HV) | 1570-2170 |
| Compression resistance (MPa) | 2100 |
| Flexibility resistance (MPa) | 390 |
| Resilience | 1 |
| Elasticity module (GPa) | 440 |
Are ruby balls automatically lubricated? Yes. Ruby balls have a self-lubrication capacity that reduces the need for an external lubricant, which can add to their operating cost.
Why are ruby balls easy to polish? The ruby material has a crystal structure that gives it an exceptional ability to take a glossy finish when it is polished.
Why don't ruby balls fade? The red colour of ruby balls is due to small impurities in the material, and not to a colouring or coating that could simmer or discolor.
Clearly, the potential of ruby logs is immense. Whether in high-end products or in industrial equipment, they offer undeniable added value in terms of reliability, durability and efficiency+.
So wait more, make the choice of excellence by choosing ruby balls for your industrial production in contacting us.
Our sales department will answer you as soon as possible!

Monday to Thursday: From 8:30 to 12:30 and from 13:30 to 17:30
Friday : From 8:30am to 12:30pm and from 1:30pm to 4:30pm

3, rue de l'Artisanat,
Moulin du Gillier Industrial Zone
42290 Sorbers, FRANCE

Tel: (+33) 4 77 90 51 29
Mail: contact@marteau-lemarie.com

3, rue de l'Artisanat
Moulin du Gillier Industrial Zone
42290 Sorbers, FRANCE
+33477905129
contact@marteau-lemarie.com