Clearance analysis and detection of third generation wheel hub bearing

HUANG De-jie， CHEN Song-hai， JIN Yang， GUO Quan
（Zhejiang Wanxiang Precision Industry Co.， Ltd.， Hangzhou 311215， China）

Abstract： In order to solve the problem that it is difficult to obtain the negative clearance of third generation wheel hub bearing directly，combined with the clearance indirect measurement method of third generation wheel hub bearing and axial load and displacement's relation of angle contact bearing，the clearance and preload of wheel hub bearing was analyzed，relationship of unload force and preload was set up，clearance calculation method of wheel hub bearing under assembly part and entrusting part state was put forward. Based on using loading instrument to simulate locking force，the clearance measurement method of driving wheel and dead wheel of the third generation was designed to gain clearance of wheel hub bearing. The study result shows that，there is a kind of certain linear relationship between unload force and preload，different initial clearance bearings under the same locking force leads the same axial displacement.
Key words： third generation wheel hub bearing； clearance detection of bearing； unload force； preload