实际中的各种机械,往往由于没有正确地估计轴承的寿命,而影响了它的可靠性。本文根据辅承可靠性的概率方程,导出了确定轴承寿命的的图表,根据这些图表,可以方便、准确地确定轴承的寿命,兹介绍如下。滚动轴承的工作寿命是以平均寿命B_(50)和额定寿命B_(10)来衡量的。对大多数轴承来说,通常B_(50)=5B_(10),其可靠性概率R=exp[-(t/6.84B_(10))~(1.17)]％,式中t为所需运转的时间(小时)。当可靠性要求很高时,则有B_(50)=4.08B_(10),可靠性概率(下 The actual variety of machinery, often due to not correctly estimate the bearing life, which affected its reliability. Based on the probabilistic equation of the secondary bearing reliability, this paper derives a chart that defines the bearing life. From these charts, it is easy and accurate to determine the bearing life, which is described below. Rolling bearing working life is based on the average life B_ (50) and the rated life of B_ (10) to measure. For most bearings, the reliability probability R = exp [- (t / 6.84B_ (10)) ~ (1.17)]% is usually B_ (50) = 5B_ (10) Of the time (hours). When the reliability requirements are high, then B_ (50) = 4.08B_ (10), reliability probability