Abstract

Bearing preload is a critical aspect that needs to be analyzed in order to ensure the smooth operation of industrial machinery. The proper preload set during the initial bearing installation and after every scheduled maintenance operation can determine in part, the lifespan of the bearings and in turn, of the machines they are installed in. This paper presents a constant pressure preload system that uses shape memory alloy modules to apply preload. Such systems can be implemented on both in use and new equipment to improve reliability, energy efficiency and to reduce operational costs and downtimes.

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