Design Of Journal Bearings For Rotating Machinery

PaperPg. 25-45.Rotating machinery is often subject to vibrations due to critical speeds, unbalance, and instability. Usually the least expensive modification of a machine to make is the bearing. A wide variety of bearings have been developed to combat some of the different types of vibration problems. This paper discusses the geometry and theoretical and experimental results which have been obtained for a number of bearing types. The three main bearing types discussed in this work are multilobe, pressure dam, and tilting pad bearings. A bearing summary chart indicating some of the advantages and disadvantages of these bearing types as well as others is included in the paper