The permissible operating temperature for Y-bearing units is, depending on unit variant, mainly limited by:
the housing material
- The permissible operating temperature for housings made of composite is –30 to +120 °C (–20 to +250 °F). Other housing materials do not limit the permissible operating temperature of the unit.
- the PA66 cage (→ Cage materials)
- 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.
- the lubricant
For high temperature applications with operating temperatures > 120 °C (250 °F) and ≤ 350 °C (660 °F), refer to section Y-bearings and Y-bearing units for high temperature applications.