A bearing assembly is disclosed which addresses the problem of axially retaining a bearing journaled onto a shaft within a casing in an axially compact and technically economic and reliable way by first mounting a retaining plate onto an outer race of the bearing. Some subfields that make up a display field of a frame, that is, a subfield of a first group, are represented by first display lines and the rest, that is, a subfield of a second group, are represented by second display lines; thus, a total display field is obtained and a gray scale is represented. The terminal can then display for the subscriber the menu of programming available. A highly accurate temperature monitoring and control method is also developed. The monolayer contains functionalized molecules, and accordingly functionalizes a surface of the substrate. During operation, the system performs the database operation which involves accessing the user defined fields.