Hybrid Bearings

SPEKUMA supply Hybrid Bearings, with the rings made of steel and the Balls of ceramics.

Some advantages with Hybrid bearings:

  • Low friction
  • Low abrasive wear out
  • Low cost lubrication
  • Corrosion resistant
  • Electrically isolating
  • Higher speed

     

 

 

Also see Ceramic bearings and Sealed Spindle bearings

 

STEEL BALL BEARINGS
(Not Stainless Steel)
HYBRID BEARINGS CERAMIC BEARINGS
(Si3N4)
Temperature resistance Depending on which type of holder and seal. But normally 120ºC. Depending on which type of holder and seal. Depends on temperature sensitivity on the cage.
Up to 800ºC

Lubrication

Lubrication is required Less Lubrication is required No Lubrication is required

Corrosion

Corrodes The ceramic balls are corrosion resistant Corrosion resistant

Lifetime

Normal Approx. 5-20 times longer than Steel Ball Bearings Low wear and longer lifetime

Strength

Normal High compared to conventional bearing steel Extremely high

Electrical isolation capability

Electricity destroys the Bearing surfaces Very good Very good

Weight

7,85 kg/cm3 Ceramic Balls cause an approximate weight reduction of 60%, resulting in a lower weight than Steel Ball Bearings 3,20 kg/cm3

 



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