Journal
TRIBOLOGY TRANSACTIONS
Volume 64, Issue 5, Pages 883-890Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10402004.2021.1946227
Keywords
Rolling element bearings; power losses; energy consumption; calculation methods
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This article discusses a methodology to estimate the energy losses of specific bearing types on a global scale and proposes a method for calculating the potential energy efficiency of newer designs.
Rolling element bearings are found in every piece of machinery and are therefore a source of energy losses that cannot be ignored. In recent years a series of energy-efficient bearings have been developed using specific designs or new materials aiming to reduce the losses of a bearing without sacrificing its load-carrying capacity. The effect that these designs have on the global energy consumption has not been quantified until now. A methodology to estimate the energy losses of the usage of a specific bearing type on a global scale is presented in this article. The method, which is based on current standards, provides a first approximation for the determination of the energy losses of bearings and is tested for its plausibility. The pros and cons of the proposed method are discussed, and a proposal is made regarding how to calculate the potential energy efficiency of newer designs.
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