• 机械基础工程 •

### 低速灵敏球轴承摩擦力矩分析

1. 1.上海大学，上海，200072
2.上海天安轴承有限公司，上海，200233
• 出版日期:2010-03-10 发布日期:2010-03-22
• 基金资助:
“十一五”国家重点科技项目(JPPT-115-197)
National Science and Technology Major Project ( No. JPPT-115-197)

### Analysis of Friction Torque of Sensitive Ball Bearing under Low Speed

Jiang Shaona1;Chen Xiaoyang1;Gu Jiaming2;Yu Liming1;Shen Xuejin1

1. 1.Shanghai University，Shanghai，200072
2.Shanghai Tian’an Bearing Co. Ltd.，Shanghai，200233
• Online:2010-03-10 Published:2010-03-22
• Supported by:
National Science and Technology Major Project ( No. JPPT-115-197)

Abstract:

The starting friction torque and dynamics friction torque of a sensitive ball bearing under low-speed are much more important factors for the attitude control of navigation system. Generally, its operating condition is under the low-speed and thin oil lubrication, so the viscous friction was usually neglected and the friction torque caused by main influencing factors of elastic hysteresis in rolling, spin of rolling element and sliding friction on contact zone were considered. Based on the models of imitating statics，the location of pure rolling lines on the contact ellipse was calculated to estimate the friction torque of sensitive ball bearing. By comparison of theoretical results with both of the other theory analysis and test study, the feasibility of this model was qualified and structure parameters, such as the cofficients of inner and outer race curvature were discussed, which have influences on the friction torque. 

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