Grease is a semi-solid lubricant made by thickening oil with a soap base and adding additives to improve performance. It is used in mechanical systems to reduce friction, wear, and heat between moving parts such as bearings, gears, joints, and machine fittings. Unlike liquid oil, grease stays in place for a longer time, making it suitable for parts that are not frequently serviced or are difficult to lubricate regularly.
Operation
In operation, grease works by forming a protective layer between moving metal surfaces. When applied, it adheres to the surfaces and slowly releases oil during movement, which reduces direct metal-to-metal contact. This minimizes friction, prevents wear, and protects against rust and corrosion. Grease remains in the contact area for a long period, even under pressure or vibration, ensuring continuous lubrication and smooth machine operation.
