Hybrid bearings for professional hand tools

SKF has selected a range of grease-lubricated hybrid bearings that are suitable for the repair and upgrading of high-speed hand tools powered by:

  • Air-turbine motors
  • Electric motors
  • Pneumatic motors

Centrifugal forces in bearings

For professional hand tools SKF hybrid bearings can often be used at higher speeds than the SKF General Catalogue speed rating for all steel bearings. This is due to the lower density of silicon nitride compared to steel.

The centrifugal force from a ceramic ball in a bearing is 40% less than of a steel ball at the same speed. Higher centrifugal loads cause higher bearing temperatures.
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