Special conditions of employment
Criteria for selecting a landing. Validation
Article REF: B5310 V2
Special conditions of employment
Criteria for selecting a landing. Validation

Author : Roger GOJON

Publication date: January 10, 1997 | Lire en français

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9. Special conditions of employment

9.1 Gases other than air. Vacuum

  • Ambient gases other than air: the problem is so vast that it can only be addressed by recommending :

    • seek specialist advice on corrosion ;

    • consider the risks of condensation and re-vaporization, the effects of viscosity on lift, the risks of gas ignition on contact with the bearing, which may be heated by seizure, and, with abrasive dust-laden gases, protect bearings with seals.

  • Vacuum ( , § 6.1): the vacuum prohibits the use of greases or oils that vaporize. Solid lubricant-based materials must therefore be used. For bearings, special cages and/or treatments are...

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