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Temperature limits

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
When temperatures outside the permissible range are expected, contact the SKF application engineering service.

Bearing rings and rollers

SKF needle roller bearings undergo a special heat treatment. The bearings are heat stabilized up to at least 120 °C (250 °F).

Cages

Steel cages can be used at the same operating temperatures as the bearing rings and rollers.

Seating rings

The permissible operating temperature for seating rings is –30 to +100 °C (–20 to +210 °F).

Lubricants

Temperature limits for 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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