Cookies on the SKF website

SKF uses cookies on our websites to align the information shown as closely as possible to our visitors’ preferences, such as country and language choices.

Will you accept SKF cookies?

SKF hybrid bearings

Longer lasting under extreme conditions

Hybrid bearings group
SKF hybrid bearings use balls or rollers made of silicon nitride, a ceramic material with unique characteristics that make it an excellent choice for applications that require high speed, high stiffness, and electrical insulation properties, among others.

Featuring a very smooth service finish and low conductivity, SKF hybrid bearings cut lubricant consumption and open up a wide range of possibilities for rolling bearings. Features include:
  • Lower density - Silicon nitride balls have a density of only 40% of similar steel balls, enabling higher speeds, less weight, lower inertia, plus more rapid starts and stops.
  • Low friction - Silicon nitride's low coefficient of friction enhances wear resistance, allowing bearings to run cooler even when they are poorly lubricated.
  • Higher modulus of elasticity - Ceramic balls have 50% higher modulus elasticity than steel for increased bearing stiffness.
  • Low conductivity - Ceramic balls act as a barrier to electrical current passing between inner and outer rings, thereby delivering a simple method of insulation.
  • Lower coefficient of thermal expansion - Ceramic balls have a thermal expansion only 29% of similar steel balls, which allows less sensitivity to temperature gradients for more accurate preload control.
SKF logo