According to ASTM D288, grease is defined as “a solid-to-semifluid product of dispersion of a thickening agent in a liquid lubricant. During Noria’s training courses, the class is often asked, “What is grease?” Typical responses include “really thick oil,” “a paste-like lubricant,” etc. However, the best approach is to start with a grease that serves the needs of the machine and then design a lubrication system that works with the lubricant.īefore considering which tests should be performed to help select the right grease, a basic understanding of grease formulation is needed. When designing a centralized lubrication system, which comes first: the system or the grease selection? Most people begin with the system and then find a grease that is suitable for it.
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