This article explains mainly installation form of angular contact ball bearing 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。
The axial fixed position preload is applied to middle ring of the shaft, the axial rigidity of the angular contact ball bearing is obtained by the impulse excitation tests.
对转台中环主轴施加轴向定位预紧力，通过脉冲激励法试验得到角接触球轴承的轴向刚度，试验结果与理论结果吻合较好，为转台研制中各轴系预紧量的控制提供了理论和实验依据。
The radial and axial loads affect the ball contact angles relating to the bearing failure.
径向载荷和轴向载荷对接触角的变化影响较大，直接关系到滚珠轴承的失效情况；
Thurst angular contact ball 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.
该类轴承只能承受单方向的轴向载荷，如果单个轴承的载荷不能满足需要，或者要求承受两个方向的轴向载荷时则选用轴承组。
Thurst angular contact ball 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.
该类轴承只能承受单方向的轴向载荷，如果单个轴承的载荷不能满足需要，或者要求承受两个方向的轴向载荷时则选用轴承组。
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