For hydrodynamic lubrication
(A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance
space
(B) There should be external source like pump to supply lubricant under pressure
(C) There should be elastic deformation of the parts in contact
(D) There should be metal to metal contact
(A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance
space
(B) There should be external source like pump to supply lubricant under pressure
(C) There should be elastic deformation of the parts in contact
(D) There should be metal to metal contact