轴承所需的实际寿命当然与应用的性质有关。
The life actually required for bearings naturally varies according to the nature of the application .
材料的应力在滚动结果从外在负载下的轴承接触压力以及从附加应力的机械、化工或热性质。
The material stress in rolling contact results from the external loading of a bearing under contact pressure as well as from additional stresses of a mechanical, chemical or thermal nature.
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