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?

Hybrid bearings

Hybrid bearing image 1
Hybrid bearings have rings of bearing steel and rolling elements of bearing grade silicon nitride. Silicon nitride is a ceramic material with low density and high strength, stiffness, toughness and hardness.

These characteristics are extremely important for racing applications, for the following potential benefits:
  • Electric insulation properties, which eliminate the risk of damages due to electric currents, even at high frequencies
  • Low thermal transfer
  • Weight reduction: silicon nitride density is 60% less than steel
  • High-speed performance: thanks to low density (low centrifugal forces) and low friction (low temperatures)
  • Low wear rate due to high hardness
  • Improved grease life and resistance to seizure, due to lower running temperature thanks to lower internal friction than all-steel bearings
  • Higher stiffness: silicon nitride has a 50% higher elastic modulus (Young's modulus) than steel
  • Resist vibrations: silicon nitride balls on steel have much higher resistance against wear caused by small vibrations of the bearings, particularly at stand still
  • Longer life in corrosive environment. Silicon nitride is non-corrosive and chemically inert

If you need further technical information on Hybrid bearings, please click here.
SKF logo