Investigation of effects of oil additive on friction coefficient for statically loaded radial journal bearings

In this study, variation of friction coefficient under static loading on a radial journal bearing (Chrysler connecting rod bearing) is studied both theoretically and experimentally. The theoretical section of the study was conducted with the Kiss-SOFT program while the experimental part was conducted on a TM 290 hydrodynamic radial journal bearing experimental set. In this study we examine the effect of bearing loads and different proportion of poured additive in alkali-based lubrication oil on friction coefficient. Friction coefficient was calculated from the frictional torque. Consequently, theoretically calculated and experimentally tested friction coefficients were compared and the optimum oil additive ratio was determined