滚道椭圆度对轴承疲劳寿命的影响  

Influence of Raceway Ellipticity on Bearing Fatigue Life

作　　者：罗天宇[1] 罗继伟[2] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]洛阳轴研科技股份有限公司,河南洛阳471039

出　　处：《轴承》2013年第12期11-12,39,共3页Bearing

摘　　要：分析椭圆滚道与滚动体包络圆之间的间隙分布,以此为基础确定了滚动体的接触载荷分布,然后按照Lundberg和Palmgen的理论计算了轴承的额定疲劳寿命,最后给出了计算实例。分析与实例计算表明,滚道的椭圆度对轴承的疲劳寿命有显著影响,应严格加以控制。The gaps between ellipse raceway and envelope circle of rolling elements are analyzed. On this basis,the contact load distribution of rolling elements is determined. The rating fatigue life of bearings is calculated according to the theory of Lundberg and Palmgen. Finally a calculating example is provided. The analysis and practical calculation show that the raceway ellipticity has obvious effect on bearing fatigue life,which must be strictly controlled.

关 键 词：滚动轴承 滚道 椭圆度 疲劳寿命 

分 类 号：TH133.33[机械工程—机械制造及自动化]