ABSTRACT
Wear materials are generally really combinations of materials that result in low wear, low wear of one of the materials in contact, or low wear of both. One such combination is that of bronze bushings supporting a steel sha§, which minimizes adhesive wear by means of the bronze transfer Ÿlm developing on the steel surface resulting in minimal total wear. Note that some bronzes are more wear resistant than others and that it is beneŸcial to make the steel sha§ hard and smooth. Plastic materials, especially Te¨on and polyimides, may show a similar behavior, and excellent wear life. And the combination of metal surfaces with ceramics can also be aided by a transfer Ÿlm of metal on the ceramic surface, minimizing the wear rate.
