Lubricating Greases
Lubricating greases are essential to reduce friction where the use of an oil is not possible. The number of already existing applications and under development are almost infinite, each with its own particularities, so different formulations are needed to optimally respond to these challenges.
Here we look at lubricating greases from different perspectives, with the intention of helping to make this world a little more understandable.
What is a grease?
A grease usually consists of three components. In a carefully controlled process, these components are combined in finely balanced proportions to produce a highperforming end product.
NGLI rating
The NLGI number is a measure of the consistency of the grease in accordance with its worked penetration value. It is essential to ensure the correct consistency of grease in order to guarantee proper lubrication.
Dropping point
There are several different types of thickener, each of which has a different effect on the properties of the lubricating grease.
Testing of greases – some common tests
From base oil viscosity, dropping point, copper corrosion, cone penetration, water resistance, corrosion protection, load-bearing capacity and wear-resistance. Find about them.
Grease compatibility
In general, mixing lubricants is not recommended from the point of view of good lubrication practice. However, for greases, this can occur and it is important to ensure that it does not cause incompatibility issues.
Separation of oil in greases
Oil separation is a natural phenomenon in lubricating greases. It is not a matter of grease quality; it is a characteristic that depends on the type and quantity of thickener.
