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 SKF greases.
When using lubricants not supplied by SKF, temperature limits should be evaluated according to the SKF traffic light concept.