schmierfähig
Schmierfähig is a German term used in engineering to describe the property of a material, surface, or component that is capable of being lubricated effectively under operating conditions. It denotes the ability to form and maintain a lubricating film between sliding surfaces, thereby reducing friction and wear and ensuring reliable operation within specified loads, speeds, temperatures, and environments. The word combines Schmiermittel (lubricant) and fähig (able).
In practice, Schmierfähigkeit is a consideration for components such as bearings, gears, piston rings, valve stems,
Factors influencing Schmierfähigkeit include surface topography, material hardness, lubricant properties, temperature, load, and relative speed. The
Evaluation of Schmierfähigkeit relies on tribological testing that measures friction coefficients, wear rates, and lubricant film