Effect of Ball Size and Lubricating Condition on Rolling Fatigue Life of the Rolling Bearing with Small Balls (Part 2) - Rolling Fatigue Life under Fluid Lubricating Condition

被引：0

作者：

Yasue, Yuko ^{[1
]}

Matsumoto, Susumu ^{[2
]}

Yoshida, Yuji ^{[1
]}

机构：

[1] Waseda Univ, Grad Sch, Wakamatsu Ku, Kitakyushu, Fukuoka 8080135, Japan

[2] Waseda Univ, Grad Sch Informat Prod & Syst, Wakamatsu Ku, Kitakyushu, Fukuoka 8080135, Japan

来源：

JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS | 2012年 / 57卷 / 07期

关键词：

rolling bearing; rolling fatigue life; micro point contact; fluid lubrication; size effect; subsurface originating pitting;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The design of the fatigue life of a rolling bearing is based on the Lundberg-Palmgren theory. This theory suggests that the fatigue life of a rolling bearing is influenced by the size of the volume under shear stress. Thus, a rolling bearing with small balls is expected to display a different fatigue life from one with larger balls, even if their maximum contact pressures are the same. The reason for this difference is that the volumes that are under the shear stress between different-sized bearings are different. However, when the contact equivalent radius of a rolling bearing is I mm or less, there is no confirmation whether its fatigue life can be designed according to the Lundberg-Palmgren theory. For this reason, the fatigue life of ball bearings with small balls is measured under a fluid lubricating condition. The results obtained are as follows. 1) The difference in ball size is not a significant influence on the fatigue life of the ball bearing. 2) The rolling fatigue life of a rolling bearing with small balls, as well as rolling bearings with typical sized balls, can be designed using the conventional method.

引用

页码：487 / 495

页数：9