For studying the hydrodynamic lubrication characteristics of waterlubricated rubber bearings,a twoway thermalfluidsolid coupling model of the waterlubricated rubber bearing was established based on the finite element method and finite volume method.The water film pressure and bearing capacity under the different temperature and rotational speed were studied.The results show that the water film pressure and rubber deformation are decreased and the bearing capacity is weaken,as the water temperature increasing.The water film pressure and rubber deformation are increased and the bearing capacity is enhanced,as the rotational speed increasing.However,the temperature has limited influence on the bearing capacity with the lower rotational speed.