SKF hybrid bearings for high speed electric motors
SKF has selected a range of grease-lubricated single row deep groove ball bearings with ceramic balls that are especially suitable for:
- air-turbine motors
- electrical motors
- pneumatic motors
Hybrid bearings have carbon-chromium steel rings and special grade Silicon Nitride rolling elements. The ceramic material silicon nitride is produced by a powder compacting process acting at high temperature (~1800°C) and high pressure (~200MPa). The SKF specified process creates a solid ceramic material without any porosity, and with good toughness.
This range of hybrid bearings offers a replacement to conventional all-steel grease-lubricated bearings in high speed Electric motors.
Improved service life can be achieved for hybrid bearings due to:
- extended grease life
- good performance in air-streams and condensation
- high wear resistance against particulate contamination (sand, pigments, abrasives, steel, iron oxides etc)
- resistance to electric current