Fatigue life reduction due to wear in boundary lubricated spherical roller thrust bearings

被引:19
作者
Olofsson, U
机构
[1] Machine Elements, Department of Machine Design, Royal Institute of Technology
关键词
fatigue life; spherical roller thrust bearings; wear;
D O I
10.1016/S0043-1648(97)00044-6
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Due to the curved contact surface in a boundary lubricated spherical roller thrust bearing the rollers will undergo sliding in the contact. For an unskewed roller there will be at most two points along each contact where the sliding velocity is zero. At all other points along the contact sliding is present. Experimental results from measurements of the contacting surfaces show that outside the zero sliding points there is a significant change in the washer surface profile due to wear. An analytical method is used to determine how the surface profile change due to wear affects the fatigue life of the bearings. Fatigue life as predicted by this method shows a reduction of up to 80% for a bearing that was run 480 000 rev. (C) 1997 Elsevier Science S.A.
引用
收藏
页码:74 / 78
页数:5
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