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Temperature limits

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

Bearing rings

CARB bearings undergo a special heat treatment. The bearings are heat stabilized for use at temperatures up to 200 °C (390 °F) for at least 2 500 h, or for brief periods at even higher temperatures.

Cages

Steel or brass cages can be used at the same operating temperatures as the bearing rings. For temperature limits of polymer cages, refer to Cage materials.

Seals

The permissible operating temperature for HNBR seals is –40 to +150 °C (–40 to +300 °F).

Lubricants

Temperature limits for the grease used in sealed CARB toroidal roller bearings are provided in table 1. Temperature limits for other SKF greases are provided under SKF greases.
When using lubricants not supplied by SKF, the temperature limits should be evaluated according to the SKF traffic light concept.
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