Power transmission oil having improved viscosity characteristics and seismic dynamic characteristics
(57) Abstract: a major amount of lubricating oil, an improved and a additive mixture comprising (a) from about 175,000 viscosity modifier and having a molecular weight not exceeding atomic mass units (b) selected friction modifiers power transmission oil is provided.
Abstract A micropolar fluid, which is characterized by the presence of suspended rigid particles with microstructure, can be used as a model for lubricants containing suspended additive particles. The theory is applied to the study of the lubrication of an inclined stepped composite bearing with an additive-containing lubricant. The theory yields results showing an increase in the load-carrying capacity and a reduction in the coefficient of friction which are in agreement with experimental observations.