<div class="htmlview paragraph"><b>DATA presented in this paper indicate the bearing corrosion problem to be fairly straightforward in that:</b></div> <div class="htmlview paragraph"> <ol class="list nostyle"> <li class="list-item"><span class="li-label"><b>1.</b></span><div class="htmlview paragraph"><b>Corrosion of copper-lead bearings specifically can be reduced by improving the fineness of the microstructure;</b></div></li> <li class="list-item"><span class="li-label"><b>2.</b></span><div class="htmlview paragraph"><b>All bearings appear to be aided greatly by reduction of operating temperatures; and</b></div></li> <li class="list-item"><span class="li-label"><b>3.</b></span><div class="htmlview paragraph"><b>Treating the corrodible bearings by special processes, such as indium plating, greatly increases their corrosion resistance.</b></div></li> </ol> </div> <div class="htmlview paragraph"><b>However, anomalies are cited which indicate that bearing and oil combinations do not behave in relatively the same manner in all engines.</b></div> <div class="htmlview paragraph"><b>Different types of corrosion may occur in different engines or bearings, or a mechanical or assembly defect, rather than a corrosive oil, may be responsible for bearing failure. The appearance of a bearing frequently fails to indicate the reason for its failure, and more thorough investigation must be made.</b></div> <div class="htmlview paragraph"><b>In his conclusion the author emphasizes that the field of bearing corrosion still has large unexplored areas.</b></div>