Temperature limits

The permissible operating temperature for combined needle roller bearings can be limited by:
  • the dimensional stability of the bearing rings and rolling elements
  • the cages
  • the lubricant
Where temperatures outside the permissible range are expected, contact SKF.

Bearing rings and rolling elements

SKF combined needle roller bearings are heat stabilized up to at least 120 °C (250 °F).


Steel cages can be used at the same operating temperatures as the bearing rings and rolling elements. For temperature limits of polymer cages, refer to Polymer cages.


Temperature limits for greases used in capped combined needle roller bearings are provided in table 1. For temperature limits of other SKF greases, refer to Selecting a suitable SKF grease.
When using lubricants not supplied by SKF, temperature limits should be evaluated according to the SKF traffic light concept.
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