In journal bearing design, the profile factor (sometimes called the conformability factor) is a parameter that describes the shape or profile of the bearing surface in relation to the shaft. It reflects how well the surface of the bearing conforms to the shaft, which affects the load-carrying capacity and lubrication performance of the bearing. The profile factor is typically defined by the clearance profile or the dimensional relationship between the bearing surface and the shaft.
few classic and well-regarded texts that cover these topics extensively:
"Hydrodynamic Lubrication" by O. Pinkus and B. Sternlicht
This book is a foundational reference for understanding hydrodynamic bearing theory, lubrication mechanics, and profile factors in journal bearings.
"Fundamentals of Fluid Film Lubrication" by Bernard J. Hamrock, Steven R. Schmid, and Bo O. Jacobson
This text covers the fundamentals of fluid film lubrication in depth, including hydrodynamic and elastohydrodynamic lubrication, which are directly relevant to journal bearings.
"Tribology: Friction and Wear of Engineering Materials" by Ian M. Hutchings and Philip Shipway
This book provides a comprehensive overview of tribology, including sections on journal bearings and factors like profile and lubrication film that impact bearing performance.
"Bearings and Lubrication: A Mechanical Designer's Workbook" by Thomas A. Harris
This book is a practical guide that covers the engineering aspects of bearing design, including the profile factors and load distribution in bearings.
"Engineering Tribology" by G.W. Stachowiak and A.W. Batchelor
This is another well-regarded reference that covers various aspects of tribology, including the design of bearings and the importance of profile factors in lubrication.
