This part of GB/T 2889 defines the most commonly used terms, definitions and classifications related to the lubrication of plain bearings. This section gives abbreviations for certain terms and compound words, which can be used when there is no ambiguity. No definition is given for terms that do not require explanation.
GB/T 2889.3-2020 history
2020GB/T 2889.3-2020 Plain bearings—Terms, definitions,classification and symbols—Part 3: Lubrication