Design calculating method of grooved raceway diameter of angular contact ball boring is introduced, and the related calculating formula is given.

介绍了角接触球轴承沟道直径的设计计算方法，并给出了相关的计算式。

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In the light of the influence of the waviness on deep groove ball bearing oscillation, the reasons of causing the grooved raceway waviness were analyzed, the measure was given to reduce waviness.

针对波纹度对低噪声深沟球轴承振动的影响，分析造成沟道波纹度的原因，提出降低沟道波纹度的相关措施。

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The mesh of copper tubes and loading ways of the balls are the key problems during three dimensional FE simulation of ball spinning of inner grooved tubes.

内螺纹管滚珠旋压三维有限元模拟中，铜管的网格划分和滚珠加载方式是模拟的关键问题。

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He stole home nineteen times in his ten-year major-league career (1947-56), and the threat that he might suddenly break for the plate unnerved pitchers, some of whom balked or accidentally grooved the ball to the batter.

NEWYORKER: Artful Dodgers