Abstract
ABSTRACTA novel approach that allowed the identification of (in) active grease reservoirs in high-speed superprecision angular contact ball bearings for spindle applications is described. To improve the design of these grease-lubricated bearings it is necessary to measure grease migration and determine the lubrication role of internal grease reservoirs. Hence, a technique based on fluorescence spectroscopy is successfully applied that allowed the identification of grease migration in such a bearing. Therefore, this technique provides a new way to further improve grease migration in critical bearing locations with the ultimate goal of attaining even higher speeds and longer life.
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