The permissible operating temperature for deep groove ball bearings can be limited by:
- the dimensional stability of the bearing rings and balls
- the cage
- the seals
- the lubricant
Bearing rings and balls
SKF deep groove ball bearings are heat stabilized up to at least 120 °C (250 °F).
Steel, stainless steel, brass or PEEK cages can be used at the same operating temperatures as the bearing rings and balls. For temperature limits of cages made of other polymer materials, 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.
FKM: –30 to +200 °C (–20 to +390 °F)
Temperatures up to 230 °C (445 °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.