Effects of Cage Pocket Shapes on Dynamics of Angular Contact Ball Bearings

被引：13
|
作者：
Chen, Shijin [1 ]
Chen, Xiaoyang [1 ]
Shuai, Qiqi [1 ]
Gu, Jiaming [2 ]
机构：
[1] Shanghai Univ, Dept Mechatron Engn & Automat, 333 Nanchen Rd, Shanghai 200072, Peoples R China
[2] Shanghai Tian An Bearing Co Ltd, 4399 Yindu Rd, Shanghai 201108, Peoples R China
来源：
TRIBOLOGY ONLINE | 2020年 / 15卷 / 05期
关键词：
angular contact ball bearing; dynamics; cage pocket shapes; stability; moment; ROLLING-ELEMENT BEARINGS; INSTABILITIES; SEPARATORS; TORQUE;
D O I：
10.2474/trol.15.343
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The dynamic models of spherical and cylindrical pocket cages are established based on the dynamic wear simulation model of angular contact ball bearings, and the predicted results are in reasonable agreement with the experimental observations. In this paper, the effects of cage pocket shapes on dynamics of angular contact ball bearings in different pocket clearance are studied based on the established model. It is found that the whirl range of the cylindrical pocket cage is limited by guiding ring, and for spherical pocket cage is limited by balls. And the cage motion of spherical pocket is more stable than that of cylindrical pocket. The stability of the cage is positively related to the stability of the ball's distribution. Meanwhile, the axial swing range of the cage is related to the angle of the ball/cage pocket collision point. In addition, due to the sliding between the balls and the raceways, the bearing friction moment of the spherical pocket cage is larger, and the bearing friction moment of the cylindrical pocket cage is highly transient due to the unstable movement of the cage.
引用
收藏
页码：343 / 355
页数：13
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