High-performance balls made of engineering ceramics are the key to so-called hybrid bearings, which far surpass conventional steel bearings in terms of rotational speed and service life. Due to their low weight, they reduce centrifugal force and ball slippage during rapid starts, which significantly reduces wear. The extreme surface smoothness and hardness ensure minimal friction losses and prevent the dreaded welding to the steel raceways. In addition, ceramic balls are electrically insulating, making them an indispensable standard in modern electric motors to prevent spark erosion. Their thermal stability and chemical resistance guarantee maximum reliability even under the most challenging conditions. Whether in medical technology, racing, or high-frequency spindles—ceramic balls are redefining the limits of rotation.

Ball dimensions: from 1.0 mm to approx. 50.0 mm in diameter

Composed of the following materials:silicon nitride (Si3N4); zirconia (ZrO2); silicon carbide (SiC); alumina (Al2O3)

Rolling element bearings made of engineering ceramics (usually silicon nitride) are increasingly replacing traditional steel rollers to improve the performance of rotating machinery. Due to their specific material properties—lower density, extreme hardness, and electrical insulation—they fundamentally alter the dynamic behavior of the bearing.

The main advantages lie in the drastic reduction of centrifugal forces at high speeds, the prevention of cold welding (seizing), and protection against electrical erosion. In addition, their thermal stability allows them to operate under conditions under which steel rollers would already lose their strength. Their precision-machined surface minimizes friction losses and ensures a significantly extended service life for the bearing assembly.

Roll dimensions: from 3.0 mm to approx. 20.0 mm in diameter.

Composed of the following materials: silicon nitride (Si3N4); zirconia (ZrO2).