Effect of ball size and lubricating condition on rolling fatigue life of the rolling bearing with small balls (part 2) rollint? fatigue life under fluid lubricating condition

Yuko Yasue*, Susumu Matsumoto, Yuji Yoshida

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

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 1 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.

本文言語English
ページ(範囲)487-495
ページ数9
ジャーナルToraibarojisuto/Journal of Japanese Society of Tribologists
57
7
出版ステータスPublished - 2012

ASJC Scopus subject areas

  • 機械工学
  • 材料力学
  • 材料化学
  • 表面、皮膜および薄膜
  • 表面および界面

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