Design considerations are given for automotive engine bearings based on the present state of knowledge. This paper is written from the viewpoint of what an engineer should know to develop successful bearings for modern automotive engines. It is not intended to give the details of the design procedures. The effects of engine operating conditions are considered and the role of analytical procedures is discussed. The many factors, including lubrication, geometry, and materials, over which the designer has control are discussed with respect to how these factors can affect bearing performance. Procedures are outlined for the engineer to use in checking the validity of the design work.