Industrial Machine Lubricant Product Fundamentals
Grease compatibility charts have been developed and circulated since the 1980s without much alteration. However, grease technology has changed significantly over the years, and there are many proven examples of performance that contradict several widely used compatibility charts. Recent research shows grease compatibility charts to be contradictory and dated. Changing formulations and complexity in application have rendered grease compatibility charts unreliable. This paper describes the most common examples of incompatible mixing and how to determine if two greases are compatible.
Previous articles have introduced information about the composition of fluid and grease lubricants, the nature of lubricant raw materials used in those products and how the materials protect machine surfaces from wear and degradation. This month we’ll look at another lubricant category that exists between these two well-recognized lubricant products— semi-fluid lubricants.
A few key points about grease chemistry, ratings and the specific properties needed for your application.
Before making your decision, evaluate the component function, lubricant film requirement and lubricant capability.
Lubricant selection is a pivotal starting point in the pursuit of precision lubrication practices. All the effort applied to clean delivery and handling, filtration, dehydration, alignment, balancing, etc., is lost if the lubricant cannot support the demands placed upon the lubricant film when the machine is running