The permissible operating temperature for four-point contact ball bearings can be limited by:
- the dimensional stability of the bearing rings and balls
- the cage
- the lubricant
Bearing rings and balls
The bearings are heat stabilized up to at least 150 °C (300 °F).
Steel, brass or PEEK cages can be used at the same operating temperatures as the bearing rings and balls.
For temperature limits of 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.