推力轴承只能承受轴向负荷，极限转速低。有单向推力和双向推力两种受力方式。
The thrust bearings are capable only to sustain the axial loads, with low limit speed. They have two stress modes, I. E. One-way thrust and two-way thrust.
推力球轴承不能承受径向负荷，极限转速较低。
Thrust ball bearings can bear radial load, lower speed limit.
推力球轴承不能承受径向负荷，极限转速较低。
Thrust ball bearings can bear radial load, lower speed limit.
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