Permissible operating temperatures for PA66 cages with various bearing lubricants
Permissible operating temperatures for PA66 cages with various bearing lubricants
White Paper on bearing lubrication including the role of bearing lubricant, types of lubricants, lubrication methods
Permissible operating temperatures for PA66 cages with various bearing lubricants
| Lubricant | Permissible operating temperature1) | |
| – | °C | °F |
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| Mineral oils |
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| Oils without EP additives, e.g. machine or hydraulic oils | 120 | 250 |
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| Oils with EP additives, e.g. industrial and automotive gearbox oils | 110 | 230 |
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Oils with EP additives, e.g. automotive rear axle and differential gear oils (automotive), hypoid gear oils |
100 | 210 |
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| Synthetic oils |
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| Polyglycols, polyalphaolefins | 120 | 250 |
| Diesters, silicones | 110 | 230 |
| Phosphate esters | 80 | 175 |
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| Greases |
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| Lithium greases | 120 | 250 |
| Polyurea, bentonite, calcium complex greases | 120 | 250 |
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| For sodium and calcium greases and other greases with a maximum operating temperature ≤ 120 °C (250 °F), the maximum temperature for a polyamide cage is the same as the maximum operating temperature for the grease. |
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- 1) Measured on the outside surface of the outer ring; defined as the temperature that provides a cage ageing life of at least 10 000 operating hours.
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