Testing and Operation of Ball Bearings Submerged in Liquefied Gases

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Abstract
The demand for large quantities of liquefied gases has necessitated the development of liquefaction turbines and pumping systems. These developments have required studies of bearings and bearing materials suitable for operation in liquid hydrogen and other liquefied gases. The apparatus used to measure frictional torque, wear, and to make life tests on bearings submerged in liquefied gases is described. The information concerning ball bearings obtained from this equipment and some bearing information obtained from an apparatus designed to make basic pump studies is presented. Frictional torque data, wear data, and pictures showing a few of the test ball bearings are included.

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