The permissible operating temperature for CARB bearings can be limited by:
- the dimensional stability of the bearing rings
- the cage
- the seals
- the lubricant
Where temperatures outside the permissible range are expected, contact the SKF application engineering service.
The rings of CARB bearings are heat stabilized up to 200 °C (390 °F).
Steel or brass cages can be used at the same operating temperatures as the bearing rings. For temperature limits of polymer cages, refer to Cage materials.
The permissible operating temperature for seals depends on the seal material:
- HNBR: –40 to +150 °C (–40 to +300 °F)
NBR: –40 to +90 °C (–40 to +195 °F)
Temperatures up to 120 °C (250 °F) can be tolerated for brief periods.
When using lubricants not supplied by SKF, temperature limits should be evaluated according to the SKF traffic light concept.