The permissible operating temperature for support rollers can be limited by:
- the dimensional stability of the bearing rings and rollers
- the cage
- the seals
- the lubricant
Bearing rings and rollers
SKF support rollers are heat stabilized up to at least 140 °C (280 °F).
Steel cages can be used at the same operating temperatures as the bearing rings and rollers. For temperature limits of PA66 cages, refer to Cage materials.
The permissible operating temperature for seals depends on the seal material:
NBR: –40 to +100 °C (–40 to +210 °F)
Temperatures up to 120 °C (250 °F) can be tolerated for brief periods.
- PA66 sliding rings: –30 to +100 °C (–20 to +210 °F)
When using lubricants not supplied by SKF, temperature limits should be evaluated according to the SKF traffic light concept.