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角接觸球軸承
該軸承可以承受同時作用的徑向和軸向負荷,也可以承受純軸向負荷,接觸角越大,承受軸向負荷的能力也越大。在承受徑向載荷時,會引起附加軸向力,因此該軸承一般都成對使用。DB(背對背)組合、DF(面對面)組合可承受徑向負荷與雙向軸向負荷。DT(串聯)組合適用單向軸向負荷較大,單個軸承的額定負荷不足的場面。該軸承負荷容量大,剛性強,轉動平穩,極限轉速較高,可調整游隙預過盈,所以特別適用于高速精密機床。
Angular  contact  ball  bearing
The bearing can bear simultaneous acting radial and axial loads. It also bear axial load only. The bigger the contact angle,  the larger the capacity to bear axial loads. When the bearing bears radial loads, an additional axial force may occur. As a result, the bearing is usually mounted and used in pair. DB (back to back) and DF (face to face) combinations can bear radial loads and bi-directional axial loads. DT(in series)  combination is applicable for the conditions of bigger unidirectional axial loads and insufficient rating load of single bearing. The bearing is characterized with large load-bearing capacity, good rigidity, mooth rotation, high limit revolution and adjustable play shrink range. Therefore, it is especially applicable for high speed precision machine tools.  
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