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http://dx.doi.org/10.3795/KSME-A.2010.34.9.1161

Experimental Study of the Effect of Shortening of Life of Tapered Roller Bearings when Subjected to Excessive Axial Pre-Load  

Park, Jong-Won (Korea Institute of Machinery & Materials)
Kim, Hyoung-Eui (Korea Institute of Machinery & Materials)
Kim, Jong-Ock (Schaeffler Korea Corporation)
Sim, Yang-Jin (Hyundai Motor Company)
Jung, Won-Wook (Hyundai Motor Company)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.9, 2010 , pp. 1161-1166 More about this Journal
Abstract
Tapered roller bearings are core components of rotating machine parts and are simultaneously subjected to axial and radial loads. Life-shortening effect was particularly evident in the case of tapered roller bearings used in the input and output shafts of transmission; this shortening of life was a result of excessive axial pre-load, which is common in the transmission assembly line. In this study, we derived an equation for evaluating the life of tapered roller bearings subjected to excessive pre-load by using accelerated life test data. The DOE(Design Of Experiment) method and FEA(Finite Element Analysis) was used for determining the condition for performing an accelerated life test. This equation for evaluating the service life of the bearings was derived by analyzing the Weibull distribution of the test results. Using the derived equation the life evaluated was 6-7 times longer than that evaluated by the conventional $L_{10}$ bearing-life equation. The results of this study will be helpful in predicting the life of tapered roller bearings subjected to excessive pre-load and in designing reliable rotating machines.
Keywords
Accelerated Life Test; Bearing Life; Excessive Pre-load; Tapered Roller Bearing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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