| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a life testing method for a ball bearing, by which fatigue life values of ball bearings can be acquired without variation. <P>SOLUTION: The life testing method is applied to the ball bearing having at least an orbital ring which is made of a steel for bearings and whose orbital surface is subjected to a hardening process. An impression 2 is formed on the orbital surface 1 of the orbital ring, and then a rolling operation is carried out by using clean lubricant, whereby the life value is obtained. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
