通过测量双列角接触球轴承关键尺寸，利用接触角的公式计算出实际接触角。并进一步分析了沟径、沟心距及游隙对接触角的影响，为接触角的控制提供了保证。%Through measuring the key size of double row angular contact ball bearings,the actual contact angle is cal-culated.The effect of raceway diameter,groove center distance and clearance on contact angle is further analyzed, which provides the guarantee for control of contact angle.
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