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Temperature limits

The permissible operating temperature for angular contact ball bearings can be limited by:
  • the dimensional stability of the bearing rings and balls
  • the cage
  • the seals
  • the lubricant
When temperatures outside the permissible range are expected, contact the SKF application engineering service.

Bearing rings and balls

SKF angular contact ball bearings undergo a special heat treatment. The bearings are heat stabilized up to at least 150 °C (300 °F).

Cages

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.

Seals

The permissible operating temperature for NBR seals is –40 to +100 °C (–40 to +210 °F). Temperatures up to 120 °C (250 °F) can be tolerated for brief periods.

Lubricants

Temperature limits for greases used in sealed SKF angular contact ball bearings are provided in (table 1). Temperature limits for other SKF greases are provided under Lubrication.
When using lubricants not supplied by SKF, the temperature limits should be evaluated according to the SKF traffic light concept.
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