Lubricating greases

Lubricating greases are mineral and synthetic oils thickened with various thickeners and soaps. In addition, lubricating greases may contain various additives to improve their lubricating and EP properties as well as corrosion prevention. Depending on the demands of the lubrication target, you may choose a lubricating grease with optimal operating temperature, lubricating properties and penetration/viscosity. Neste lubricating greases are lithium and calcium -based greases containing complex thickeners covering even demanding use targets in traffic and industry. The hardness of a lubricating grease is determined with a test where a metal cone is left to freely sink into the grease at a standard temperature (25 °C) after which the result is given in tenths of a millimeter. The higher the NLGI number a grease has, the thicker the grease.

Thickeners

The performance of a lubricating grease depends on the common effect of base oil and additives as well as on the properties of the thickener chosen.

Typical properties of thickeners:

Lithium

  • excellent mechanical resistance
  • fair water resistance
  • good temperature resistance

Lithium complex

  • excellent mechanical resistance
  • good water resistance
  • good temperature resistance
  • suitable for long maintenance intervals

Calcium (water-free) excellent mechanical resistance

  • good water resistance
  • average temperature resistance