määrdeõluse

Määrdeõluse, also known as lubricating grease, is a semi-solid substance used to reduce friction between moving parts. It is composed of a base oil, a thickener, and additives. The base oil provides the lubrication, while the thickener gives the grease its structure and consistency. Additives can be included to enhance specific properties, such as extreme pressure resistance, anti-wear capabilities, or rust prevention.

Greases are typically used in applications where liquid lubricants are not suitable, such as in bearings, gears, and joints that are exposed to dirt, water, or require long-term lubrication without frequent reapplication. The consistency of grease is measured by its NLGI (National Lubricating Grease Institute) number, which ranges from 000 (very fluid) to 6 (very stiff).

The choice of grease depends on factors like operating temperature, load, speed, and environmental conditions. For example, high-temperature applications may require greases with synthetic base oils and robust thickeners, while food-grade applications necessitate specific approved formulations. Proper storage and handling are important to maintain the integrity of the grease and prevent contamination.