Shell Darina Grease R2


Shell Darina Grease R2, based on an inorganic non-soap thickener and a specially selected base oil, will provide satisfactory lubrication beyond the temperature limitations of lithium based greases. The base oil component in Shell Darina Grease R2 is a high quality, solvent refined, high viscosity mineral oil with excellent oxidation and evaporation resistance. Oxidation stability is also improved by the addition of a special high temperature oxidation inhibitor




  • Recommended for use in bearings operating in the temperature range -10°C to 180°C.
  • Shell Darina Grease R 2 gives good service life in many applications where expensive synthetic or silicone lubricants would otherwise be considered.
  • The special high viscosity base oil in Shell Darina Grease R 2 makes it particularly suitable for the grease lubrication of heavily loaded slow speed bearings.
  • With caution, Shell Darina Grease R 2 may be used at temperatures in excess of 200°C, but only so long as the Re-lubrication period is suitably adjusted.


Operating Temperature


  • A severe limitation in many high temperature greases is the type of organic metallic soap thickener. It can melt at high temperatures destroying the grease structure – greatly reducing its retention and lubrication properties. The special inorganic clay thickener contained in Shell Darina Grease R 2 is free from any melting limitation. It controls the vaporisation and oxidation stability of the base oil and helps to extend grease life and maximise working temperature.


  • Shell Darina Grease R2 does not melt like soap thickened greases and hence its consistency changes only marginally with increasing temperature. In bearings operating at high temperature it resists softening and remains in place providing good sealing and continuous lubrication even in the presence of vibration.


  • Grease life varies considerably from application to application even with bearings operating under nominally identical conditions.
  • Variables such as air flow, dirt and humidity can have a considerable effect in addition to the more commonly recognised parameters of load, speed and temperature.
  • Predicted life is likely to be reduced significantly for less favourable conditions.
  • Recommendations should be tested on a trial basis and modified, where necessary, in the light of service experience.


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