The mechanism of fluid film lubrication in ultra-thin conjunctionsunder counterformal concentrated circular point contacts is discussed in thispaper. The significance of squeeze film action in increased load carryingcapacity is highlighted. The numerical predictions made inacceleration-deceleration motion of a ball against a flat race is found toconform with the experimental findings of other research workers for polarbranched lubricants down to a film thickness in the region of 20 nm. Thisconformance with the experimental findings has enabled a fundamentalunderstanding of the multi-physics of film formation when conditions promotingthe formation of ultra-thin films of the order of few nanometres have beenemployed, with the use of a non-polar lubricant. This paper provides the firstever solution of the combined effect of viscous, surface and molecular forcesunder transient conditions.