The permissible operating temperature for alignment needle roller bearings can be limited by:
- the dimensional stability of the bearing rings and rollers
- the cages
the seating rings
- the lubricant
Bearing rings and rollers
The bearings are heat stabilized up to at least 120 °C (250 °F).
Steel cages can be used at the same operating temperatures as the bearing rings and rollers.
The permissible operating temperature for seating rings is –30 to +100 °C (–20 to +210 °F).
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.