This article explains mainly installation form of angularcontactballbearing and its axial backlash influence in practical application, and introduces the corresponding counter-measure.
本文主要阐述了角接触轴承的安装形式及其轴向游隙在实际应用中的影响，并介绍了相应的应对措施。
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The axial fixed position preload is applied to middle ring of the shaft, the axial rigidity of the angularcontactballbearing is obtained by the impulse excitation tests.
Thurst angularcontactball bearings only bear unilateralism axial load. If single bearing loading couldn't meet request, or bear double direction axial load, it should choose bearing combine.