The journal tilting phenomenon caused by heavy load and manufacturing errors will change the eccentricity and oil film thickness at different sections of the bearing.When the sliding bearing is running at high speed,the oil film gap will inevitably be mixed with tiny bubbles.Therefore,it is necessary to explore the influence of oil-gas two-phase flow on the lubrication characteristics of radial sliding bearing when the journal tilts.Combining the modified Rayleigh-Plesset equation considering the motion of bubbles with the Reynolds equation,the corresponding algorithm was written to solve the coupled equation,and the influences of gas holdup,bubble parameters and journal inclination on the static characteristics of the sliding bearing were analyzed.The results show that the static characteristics of maximum oil film pressure,bearing capacity,end discharge and friction force decrease with the increase of gas holdup at different rotating speeds.The influence of bubble parameters on lubrication performance is related to eccentricity.Increasing the surface expansion viscosity of bubble has the same effect on bearing lubrication as decreasing the initial bubble radius.Journal inclination will change the oil film pressure distribution and values,and make the cavitation area tilt.With the increase of inclination of journal,the static characteristic parameters of sliding bearing gradually increase,and it is more significant when the eccentricity and the inclination are large.Appropriate changes in bubble parameters and oil gas holdup will weaken the influence caused by the journal tilt to some extent.