Greases

Frequently asked questions — Greases

• How do I choose the NLGI consistency class suited to my application?

  The choice of NLGI consistency class, defined from 000 to 6, is a decisive criterion for ensuring lubrication. This value indicates the grease's resistance to deformation, an essential parameter for maintaining the structural integrity of bearings and guiding components. When making your selection, you must take into account the specific constraints of your installation, in particular the applied load, the rotational speed of the components and the operating temperature ranges. A precise match between the NLGI class and these parameters guarantees optimal lubrication and the long-term stability of mechanical components.
• Which standards should I prioritise for the lubrication of plain and rolling bearings?

  For the lubrication of plain bearings and rolling bearings, it is recommended to refer to the DIN 51825 standard, which governs type K lubricating greases suitable for these mechanical components. In parallel, the ISO 6743-9 classification makes it possible to categorise greases according to their actual in-service performance. These regulatory frameworks ensure rigorous product selection, particularly when components are exposed to aggressive, humid or dusty environments. Compliance with these standards, in accordance with the recommendations of manufacturers such as SKF, FAG or KLUBER LUBRICATION, is essential to maintain the structural integrity of bearings.
• In which cases should a grease be preferred over a lubricant from the dedicated sub-family?

  The choice between the MecaIndus selection of greases and the lubricants sub-family depends on the nature of the components to be maintained. Greases are specific lubrication solutions, often complementary to maintenance products and automatic lubricators. If your application requires prolonged stability under critical load or temperature conditions, grease is the right choice to ensure the durability of the guidance. For demanding environments, the correct use of these greases, possibly combined with automatic lubrication systems, guarantees long-lasting lubrication, where a fluid lubricant might not offer the same performance.
• How do I adapt the choice of grease to aggressive industrial environments?

  Adapting the choice of grease to aggressive environments, such as humid or highly dusty areas, relies on the analysis of the lubricant's resistance capabilities. Partner brands, in particular MOLYDAL, MOLYKOTE or HENKEL LOCTITE, offer formulations suited to these specific constraints. It is necessary to assess the load, the rotational speed and the operating temperatures in order to select the grease that meets the technical requirements of the equipment. A correct match between the product and the application is essential to maintain the structural integrity of guiding components under these difficult operating conditions.