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research-article

Study of the Stiffness Matrix of Preloaded Duplex Angular Contact Ball Bearings

[+] Author and Article Information
Shengye Lin

Student, School of Mechanical Engineering, Southeast University., 2 Southeast Road, Jiangning District, Nanjing, 211189, China
lsy100815@163.com

Shuyun Jiang

Professor, School of Mechanical Engineering, Southeast University., 2 Southeast Road, Jiangning District, Nanjing, 211189, China, Fax: 86-25-52090504
jiangshy@seu.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4041895 History: Received May 27, 2018; Revised October 24, 2018

Abstract

This paper studies the stiffness characteristics of preloaded duplex angular contact ball bearings. First, a 5-DOF quasi-static model of the preloaded duplex angular contact ball bearing is established based on the Jones bearing model. Three bearing configurations (face-to-face, back-to-back, and tandem arrangements) and two preload mechanisms (constant pressure preload and fixed position preload) are included in the proposed model. Subsequently, the five-dimensional stiffness matrix of the preloaded duplex angular contact ball bearing is derived analytically. Then, an experimental setup is developed to measure the radial stiffness and the angular stiffness of duplex angular contact ball bearings. The simulated results match well with those from experiments, which proves the validity of the proposed model. Finally, the effects of bearing configuration, preload mechanism and unloaded contact angle on the angular stiffness and the cross-coupling are studied systematically.

Copyright (c) 2018 by ASME
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