running process. The maximum and the Рminimum linear speed of the rolling element occurred at the contact point with the inner ring and the outer ring Рrespectively. The dynamic stress between the rolling element and inner ring was basically the same, while the dynamic Рstress between the rolling element and outer ring increased with the increasing of the rotational speed. The reaction force Рfluctuation between the rolling element and the outer ring was bigger than that with inner ring, while the force between Рthe rolling element and the cage was relatively small. The Research showed that ANSYS/LS-DYNA software is a very Рuseful tool for analyzing dynamic contact of rolling bearing in motion process. Р Key words: ball bearing, dynamic contact, explicit algorithm, finite element analysis
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