A tribosystem is a tribological system that consists of at least two contacting bodies and any environmental factor that affects their interaction.
According to ASTM G40-17, a tribosystem is "any system that contains one or more triboelements, including all mechanical, chemical, and environmental factors relevant to tribological behavior.
"[2] More simply speaking, a tribosystem is a tribological system that consists of at least two contacting bodies, including the environment in which the interaction takes place.
[1] The complete description of a tribosystem includes all relevant factors that govern the tribological behavior of the system.
Conversely, if the analysis aims to develop a new lubricant formulation for gearbox applications, a rough description of the gearbox-tribosystem allows to reduce testing to relevant system inputs.