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Applications

A Rolling Contact Fatigue Reliability Evaluation Method and its Application to a Slewing Bearing

[+] Author and Article Information
Gao Xue Hai

Jiangsu Key Laboratory of Digital Manufacturing for Industrial Equipment and Control Technology,  Nanjing University of Technology, Jiangsu, P. R. C., 21000984gaohai@sina.com

Huang Xiao Diao1

Jiangsu Key Laboratory of Digital Manufacturing for Industrial Equipment and Control Technology,  Nanjing University of Technology, Jiangsu, P. R. C., 21000984gaohai@163.com

Hong Rong Jing

Jiangsu Key Laboratory of Digital Manufacturing for Industrial Equipment and Control Technology,  Nanjing University of Technology, Jiangsu, P. R. C., 210009hongrj@189.cn

Wang Hua

Jiangsu Key Laboratory of Digital Manufacturing for Industrial Equipment and Control Technology,  Nanjing University of Technology, Jiangsu, P. R. C., 210009wh_no1@126.com

Chen Jie

Jiangsu Key Laboratory of Digital Manufacturing for Industrial Equipment and Control Technology,  Nanjing University of Technology, Jiangsu, P. R. C., 210009sbchj@yahoo.cn

1

Corresponding author.

J. Tribol 134(1), 011101 (Feb 24, 2012) (7 pages) doi:10.1115/1.4005770 History: Revised January 08, 2011; Received September 14, 2011; Published February 21, 2012; Online February 24, 2012

Rolling contact fatigue (RCF) corresponds to the formation of the first spall, which is a stochastic behavior; therefore, the RCF life should be reliably calculated. A method for evaluating RCF reliability was developed based on the Lundberg-Palmgren theory and ISO 281. The method took into consideration the contact load, the geometric parameters of contact pairs, the oscillation amplitude, the RCF reliability and the material properties. Because the method was derived from a widely accepted theory and empirical standards, it can be used for engineering applications. Finally, the RCF reliability of a slewing bearing under complex operating conditions was determined using the developed method.

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Copyright © 2012 by American Society of Mechanical Engineers
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Figures

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Figure 1

Ball/raceway contact in a rolling bearing

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Figure 2

Illustration of the contact track

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Figure 3

The actual loads, the dynamic equivalent axial load and the ball/raceway contact load

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Figure 4

Rolling ball oscillating on the raceway

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Figure 5

Oscillation conditions

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