When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.
A. 10 times
B. 5 times
C. 15 times
D. 20 times
Answer: Option C
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Bearing characteristic number = Zn/p.
Which is, Zn/p = 15c for large Impact fluctuation load.
C = Bearing module: The value of Bearing characteristic number = Zn/p , corresponding to minimum value of coefficient of friction is called bearing module.