单向和双向推力角接触球轴承（图1.50和1.51）都用机床主轴轴向刚性作为指导。
Single-direction and double-direction angular contact thrust ball bearings (Figures 1.50 and 1.51) are used for machine tool spindles requiring rigid axial guidance.
角接触推力球轴承在高速运转时，作用在球上的离心力和旋转力矩可能会导致钢球在滚道内滑动。
When angular contact thrust ball bearings operate at high speeds, the centrifugal forces and gyratory moments acting on the balls may cause them to slide on the raceways.
单列角接触球轴承能够提供径向和推力载荷。
Single row angular contact ball bearings can accommodate radial and thrust loads.
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