Advanced Concepts of Bearing Technology
The main purpose of the first volume of this handbook was to provide the reader with information on the use, design, and performance of ball and roller bearings in common and relatively noncomplex applications. Such applications generally involve slow-to-moderate speed, shaft, or bearing outer ring rotation; simple, statically applied, radial or thrust loading; bearing mounting that does not include misalignment of shaft and bearing outer-ring axes; and adequate lubrication.
These applications are generally covered by the engineering information provided in the catalogs supplied by the bearing manufacturers. While catalog information is sufficient to enable the use of the manufacturer’s product, it is always empirical in nature and rarely provides information on the geometrical and physical justifications of the engineering formulas cited. The first volume not only includes the underlying mathematical derivations of many of the catalog-contained formulas, but also provides means for the engineering comparison of rolling bearings of various types and from different manufacturers.
Many modern bearing applications, however, involve machinery operating at high speeds; very heavy combined radial, axial, and moment loadings; high or low temperatures; and otherwise extreme environments. While rolling bearings are capable of operating in such environments, to assure adequate endurance, it is necessary to conduct more sophisticated engineering analyses of their performance than can be achieved using the methods and formulas provided in the first volume of this handbook. This is the purpose of the present volume.
When compared with its earlier editions, this edition presents updated and more accurate information to estimate rolling contact friction shear stresses and their effects on bearing functional performance and endurance. Also, means are included to calculate the effects on fatigue endurance of all stresses associated with the bearing rolling and sliding contacts. These comprise stresses due to applied loading, bearing mounting, ring speeds, material processing, and particulate contamination.
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