ABSTRACT
The functional performance and endurance of a dimensionally perfect bearing with ideal
internal geometries and surfaces, correct mounting, and preferential operating conditions are
significantly influenced by the characteristics of its materials. The major criteria to be
considered for the satisfactory performance of bearings include material selection and pro-
cessing with resultant physical properties. This chapter contains brief descriptions of various
bearing steel analyses, melting practices, manufacturing process variables, and the influence
of these factors on the physical and metallurgical properties with respect to bearing perform-
ance. It also contains discussions concerning metallic and nonmetallic materials used for
tribological coatings, cages, seals, and shields.
